Xmlsoft » Libxml2 : Security Vulnerabilities

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#	CVE ID	CWE ID	Vulnerability Type(s)	Publish Date	Update Date	Score	Gained Access Level	Access	Complexity	Authentication	Conf.	Integ.	Avail.
1	CVE-2018-14567	835	DoS	2018-08-16	2019-10-02	4.3	None	Remote	Medium	Not required	None	None	Partial
libxml2 2.9.8, if --with-lzma is used, allows remote attackers to cause a denial of service (infinite loop) via a crafted XML file that triggers LZMA_MEMLIMIT_ERROR, as demonstrated by xmllint, a different vulnerability than CVE-2015-8035 and CVE-2018-9251.
2	CVE-2018-14404	476	DoS	2018-07-19	2018-09-28	5.0	None	Remote	Low	Not required	None	None	Partial
A NULL pointer dereference vulnerability exists in the xpath.c:xmlXPathCompOpEval() function of libxml2 through 2.9.8 when parsing an invalid XPath expression in the XPATH_OP_AND or XPATH_OP_OR case. Applications processing untrusted XSL format inputs with the use of the libxml2 library may be vulnerable to a denial of service attack due to a crash of the application.
3	CVE-2018-9251	835	DoS	2018-04-03	2019-10-02	2.6	None	Remote	High	Not required	None	None	Partial
The xz_decomp function in xzlib.c in libxml2 2.9.8, if --with-lzma is used, allows remote attackers to cause a denial of service (infinite loop) via a crafted XML file that triggers LZMA_MEMLIMIT_ERROR, as demonstrated by xmllint, a different vulnerability than CVE-2015-8035.
4	CVE-2017-18258	770	DoS	2018-04-08	2019-10-02	4.3	None	Remote	Medium	Not required	None	None	Partial
The xz_head function in xzlib.c in libxml2 before 2.9.6 allows remote attackers to cause a denial of service (memory consumption) via a crafted LZMA file, because the decoder functionality does not restrict memory usage to what is required for a legitimate file.
5	CVE-2017-16932	835		2017-11-23	2019-10-02	5.0	None	Remote	Low	Not required	None	None	Partial
parser.c in libxml2 before 2.9.5 does not prevent infinite recursion in parameter entities.
6	CVE-2017-16931	119	Overflow	2017-11-23	2018-02-03	7.5	None	Remote	Low	Not required	Partial	Partial	Partial
parser.c in libxml2 before 2.9.5 mishandles parameter-entity references because the NEXTL macro calls the xmlParserHandlePEReference function in the case of a '%' character in a DTD name.
7	CVE-2017-15412	416		2018-08-28	2018-10-25	6.8	None	Remote	Medium	Not required	Partial	Partial	Partial
Use after free in libxml2 before 2.9.5, as used in Google Chrome prior to 63.0.3239.84 and other products, allowed a remote attacker to potentially exploit heap corruption via a crafted HTML page.
8	CVE-2017-9050	125		2017-05-18	2019-10-02	5.0	None	Remote	Low	Not required	None	None	Partial
libxml2 20904-GITv2.9.4-16-g0741801 is vulnerable to a heap-based buffer over-read in the xmlDictAddString function in dict.c. This vulnerability causes programs that use libxml2, such as PHP, to crash. This vulnerability exists because of an incomplete fix for CVE-2016-1839.
9	CVE-2017-9049	125		2017-05-18	2019-10-02	5.0	None	Remote	Low	Not required	None	None	Partial
libxml2 20904-GITv2.9.4-16-g0741801 is vulnerable to a heap-based buffer over-read in the xmlDictComputeFastKey function in dict.c. This vulnerability causes programs that use libxml2, such as PHP, to crash. This vulnerability exists because of an incomplete fix for libxml2 Bug 759398.
10	CVE-2017-9048	119	Overflow	2017-05-18	2017-11-10	5.0	None	Remote	Low	Not required	None	None	Partial
libxml2 20904-GITv2.9.4-16-g0741801 is vulnerable to a stack-based buffer overflow. The function xmlSnprintfElementContent in valid.c is supposed to recursively dump the element content definition into a char buffer 'buf' of size 'size'. At the end of the routine, the function may strcat two more characters without checking whether the current strlen(buf) + 2 < size. This vulnerability causes programs that use libxml2, such as PHP, to crash.
11	CVE-2017-9047	119	Overflow	2017-05-18	2017-11-10	5.0	None	Remote	Low	Not required	None	None	Partial
A buffer overflow was discovered in libxml2 20904-GITv2.9.4-16-g0741801. The function xmlSnprintfElementContent in valid.c is supposed to recursively dump the element content definition into a char buffer 'buf' of size 'size'. The variable len is assigned strlen(buf). If the content->type is XML_ELEMENT_CONTENT_ELEMENT, then (i) the content->prefix is appended to buf (if it actually fits) whereupon (ii) content->name is written to the buffer. However, the check for whether the content->name actually fits also uses 'len' rather than the updated buffer length strlen(buf). This allows us to write about "size" many bytes beyond the allocated memory. This vulnerability causes programs that use libxml2, such as PHP, to crash.
12	CVE-2017-8872	125	DoS	2017-05-10	2017-05-15	6.4	None	Remote	Low	Not required	Partial	None	Partial
The htmlParseTryOrFinish function in HTMLparser.c in libxml2 2.9.4 allows attackers to cause a denial of service (buffer over-read) or information disclosure.
13	CVE-2017-7376	119	Exec Code Overflow	2018-02-19	2019-05-17	10.0	None	Remote	Low	Not required	Complete	Complete	Complete
Buffer overflow in libxml2 allows remote attackers to execute arbitrary code by leveraging an incorrect limit for port values when handling redirects.
14	CVE-2017-7375	611		2018-02-19	2018-03-18	7.5	None	Remote	Low	Not required	Partial	Partial	Partial
A flaw in libxml2 allows remote XML entity inclusion with default parser flags (i.e., when the caller did not request entity substitution, DTD validation, external DTD subset loading, or default DTD attributes). Depending on the context, this may expose a higher-risk attack surface in libxml2 not usually reachable with default parser flags, and expose content from local files, HTTP, or FTP servers (which might be otherwise unreachable).
15	CVE-2017-5969	476	DoS	2017-04-11	2017-11-10	2.6	None	Remote	High	Not required	None	None	Partial
DISPUTED libxml2 2.9.4, when used in recover mode, allows remote attackers to cause a denial of service (NULL pointer dereference) via a crafted XML document. NOTE: The maintainer states "I would disagree of a CVE with the Recover parsing option which should only be used for manual recovery at least for XML parser."
16	CVE-2017-5130	787	Overflow Mem. Corr.	2018-02-07	2019-07-19	6.8	None	Remote	Medium	Not required	Partial	Partial	Partial
An integer overflow in xmlmemory.c in libxml2 before 2.9.5, as used in Google Chrome prior to 62.0.3202.62 and other products, allowed a remote attacker to potentially exploit heap corruption via a crafted XML file.
17	CVE-2016-9598	125	DoS	2018-08-16	2018-10-15	4.3	None	Remote	Medium	Not required	None	None	Partial
libxml2, as used in Red Hat JBoss Core Services, allows context-dependent attackers to cause a denial of service (out-of-bounds read and application crash) via a crafted XML document. NOTE: this vulnerability exists because of a missing fix for CVE-2016-4483.
18	CVE-2016-9597	119	DoS Overflow	2018-07-30	2019-10-09	5.0	None	Remote	Low	Not required	None	None	Partial
It was found that Red Hat JBoss Core Services erratum RHSA-2016:2957 for CVE-2016-3705 did not actually include the fix for the issue found in libxml2, making it vulnerable to a Denial of Service attack due to a Stack Overflow. This is a regression CVE for the same issue as CVE-2016-3705.
19	CVE-2016-9596	399	DoS	2018-08-16	2018-10-15	4.3	None	Remote	Medium	Not required	None	None	Partial
libxml2, as used in Red Hat JBoss Core Services and when in recovery mode, allows context-dependent attackers to cause a denial of service (stack consumption) via a crafted XML document. NOTE: this vulnerability exists because of an incorrect fix for CVE-2016-3627.
20	CVE-2016-9318	611		2016-11-15	2018-08-15	6.8	None	Remote	Medium	Not required	Partial	Partial	Partial
libxml2 2.9.4 and earlier, as used in XMLSec 1.2.23 and earlier and other products, does not offer a flag directly indicating that the current document may be read but other files may not be opened, which makes it easier for remote attackers to conduct XML External Entity (XXE) attacks via a crafted document.
21	CVE-2016-5131	416	DoS	2016-07-23	2018-10-30	6.8	None	Remote	Medium	Not required	Partial	Partial	Partial
Use-after-free vulnerability in libxml2 through 2.9.4, as used in Google Chrome before 52.0.2743.82, allows remote attackers to cause a denial of service or possibly have unspecified other impact via vectors related to the XPointer range-to function.
22	CVE-2016-4616	119	DoS Overflow Mem. Corr.	2016-07-21	2017-08-31	7.5	None	Remote	Low	Not required	Partial	Partial	Partial
libxml2 in Apple iOS before 9.3.3, OS X before 10.11.6, iTunes before 12.4.2 on Windows, iCloud before 5.2.1 on Windows, tvOS before 9.2.2, and watchOS before 2.2.2 allows remote attackers to cause a denial of service (memory corruption) or possibly have unspecified other impact via unknown vectors, a different vulnerability than CVE-2016-4614, CVE-2016-4615, and CVE-2016-4619.
23	CVE-2016-4615	119	DoS Overflow Mem. Corr.	2016-07-21	2017-08-31	7.5	None	Remote	Low	Not required	Partial	Partial	Partial
libxml2 in Apple iOS before 9.3.3, OS X before 10.11.6, iTunes before 12.4.2 on Windows, iCloud before 5.2.1 on Windows, tvOS before 9.2.2, and watchOS before 2.2.2 allows remote attackers to cause a denial of service (memory corruption) or possibly have unspecified other impact via unknown vectors, a different vulnerability than CVE-2016-4614, CVE-2016-4616, and CVE-2016-4619.
24	CVE-2016-4614	119	DoS Overflow Mem. Corr.	2016-07-21	2017-08-31	7.5	None	Remote	Low	Not required	Partial	Partial	Partial
libxml2 in Apple iOS before 9.3.3, OS X before 10.11.6, iTunes before 12.4.2 on Windows, iCloud before 5.2.1 on Windows, tvOS before 9.2.2, and watchOS before 2.2.2 allows remote attackers to cause a denial of service (memory corruption) or possibly have unspecified other impact via unknown vectors, a different vulnerability than CVE-2016-4615, CVE-2016-4616, and CVE-2016-4619.
25	CVE-2016-4483	125	DoS	2017-04-11	2018-01-04	5.0	None	Remote	Low	Not required	None	None	Partial
The xmlBufAttrSerializeTxtContent function in xmlsave.c in libxml2 allows context-dependent attackers to cause a denial of service (out-of-bounds read and application crash) via a non-UTF-8 attribute value, related to serialization. NOTE: this vulnerability may be a duplicate of CVE-2016-3627.
26	CVE-2016-4449	20	DoS	2016-06-09	2018-01-18	5.8	None	Remote	Medium	Not required	Partial	None	Partial
XML external entity (XXE) vulnerability in the xmlStringLenDecodeEntities function in parser.c in libxml2 before 2.9.4, when not in validating mode, allows context-dependent attackers to read arbitrary files or cause a denial of service (resource consumption) via unspecified vectors.
27	CVE-2016-4448	134		2016-06-09	2019-09-25	10.0	None	Remote	Low	Not required	Complete	Complete	Complete
Format string vulnerability in libxml2 before 2.9.4 allows attackers to have unspecified impact via format string specifiers in unknown vectors.
28	CVE-2016-4447	119	DoS Overflow	2016-06-09	2018-01-04	5.0	None	Remote	Low	Not required	None	None	Partial
The xmlParseElementDecl function in parser.c in libxml2 before 2.9.4 allows context-dependent attackers to cause a denial of service (heap-based buffer underread and application crash) via a crafted file, involving xmlParseName.
29	CVE-2016-3705	20	DoS	2016-05-17	2018-10-30	5.0	None	Remote	Low	Not required	None	None	Partial
The (1) xmlParserEntityCheck and (2) xmlParseAttValueComplex functions in parser.c in libxml2 2.9.3 do not properly keep track of the recursion depth, which allows context-dependent attackers to cause a denial of service (stack consumption and application crash) via a crafted XML document containing a large number of nested entity references.
30	CVE-2016-3627	20	DoS	2016-05-17	2018-10-30	5.0	None	Remote	Low	Not required	None	None	Partial
The xmlStringGetNodeList function in tree.c in libxml2 2.9.3 and earlier, when used in recovery mode, allows context-dependent attackers to cause a denial of service (infinite recursion, stack consumption, and application crash) via a crafted XML document.
31	CVE-2016-2073	119	DoS Overflow	2016-02-12	2017-06-30	4.3	None	Remote	Medium	Not required	None	None	Partial
The htmlParseNameComplex function in HTMLparser.c in libxml2 allows attackers to cause a denial of service (out-of-bounds read) via a crafted XML document.
32	CVE-2015-8806	119	DoS Overflow	2016-04-13	2017-06-30	5.0	None	Remote	Low	Not required	None	None	Partial
dict.c in libxml2 allows remote attackers to cause a denial of service (heap-based buffer over-read and application crash) via an unexpected character immediately after the "<!DOCTYPE html" substring in a crafted HTML document.
33	CVE-2015-8710	119	DoS Overflow +Info	2016-04-11	2016-11-29	7.5	None	Remote	Low	Not required	Partial	Partial	Partial
The htmlParseComment function in HTMLparser.c in libxml2 allows attackers to obtain sensitive information, cause a denial of service (out-of-bounds heap memory access and application crash), or possibly have unspecified other impact via an unclosed HTML comment.
34	CVE-2015-8317	119	Overflow +Info	2015-12-15	2017-09-13	5.0	None	Remote	Low	Not required	Partial	None	None
The xmlParseXMLDecl function in parser.c in libxml2 before 2.9.3 allows context-dependent attackers to obtain sensitive information via an (1) unterminated encoding value or (2) incomplete XML declaration in XML data, which triggers an out-of-bounds heap read.
35	CVE-2015-8242	119	DoS Overflow +Info	2015-12-15	2017-09-13	5.8	None	Remote	Medium	Not required	Partial	None	Partial
The xmlSAX2TextNode function in SAX2.c in the push interface in the HTML parser in libxml2 before 2.9.3 allows context-dependent attackers to cause a denial of service (stack-based buffer over-read and application crash) or obtain sensitive information via crafted XML data.
36	CVE-2015-8241	119	DoS Overflow +Info	2015-12-15	2017-09-13	6.4	None	Remote	Low	Not required	Partial	None	Partial
The xmlNextChar function in libxml2 2.9.2 does not properly check the state, which allows context-dependent attackers to cause a denial of service (heap-based buffer over-read and application crash) or obtain sensitive information via crafted XML data.
37	CVE-2015-8035	399	DoS	2015-11-18	2017-09-13	2.6	None	Remote	High	Not required	None	None	Partial
The xz_decomp function in xzlib.c in libxml2 2.9.1 does not properly detect compression errors, which allows context-dependent attackers to cause a denial of service (process hang) via crafted XML data.
38	CVE-2015-7942	119	DoS Overflow	2015-11-18	2017-09-13	6.8	None	Remote	Medium	Not required	Partial	Partial	Partial
The xmlParseConditionalSections function in parser.c in libxml2 does not properly skip intermediary entities when it stops parsing invalid input, which allows context-dependent attackers to cause a denial of service (out-of-bounds read and crash) via crafted XML data, a different vulnerability than CVE-2015-7941.
39	CVE-2015-7941	119	DoS Overflow	2015-11-18	2017-09-13	4.3	None	Remote	Medium	Not required	None	None	Partial
libxml2 2.9.2 does not properly stop parsing invalid input, which allows context-dependent attackers to cause a denial of service (out-of-bounds read and libxml2 crash) via crafted XML data to the (1) xmlParseEntityDecl or (2) xmlParseConditionalSections function in parser.c, as demonstrated by non-terminated entities.
40	CVE-2015-7500	119	DoS Overflow	2015-12-15	2017-09-13	5.0	None	Remote	Low	Not required	None	None	Partial
The xmlParseMisc function in parser.c in libxml2 before 2.9.3 allows context-dependent attackers to cause a denial of service (out-of-bounds heap read) via unspecified vectors related to incorrect entities boundaries and start tags.
41	CVE-2015-7499	119	Overflow +Info	2015-12-15	2017-09-13	5.0	None	Remote	Low	Not required	Partial	None	None
Heap-based buffer overflow in the xmlGROW function in parser.c in libxml2 before 2.9.3 allows context-dependent attackers to obtain sensitive process memory information via unspecified vectors.
42	CVE-2015-7498	119	DoS Overflow	2015-12-15	2017-09-13	5.0	None	Remote	Low	Not required	None	None	Partial
Heap-based buffer overflow in the xmlParseXmlDecl function in parser.c in libxml2 before 2.9.3 allows context-dependent attackers to cause a denial of service via unspecified vectors related to extracting errors after an encoding conversion failure.
43	CVE-2015-7497	119	DoS Overflow	2015-12-15	2017-09-13	5.0	None	Remote	Low	Not required	None	None	Partial
Heap-based buffer overflow in the xmlDictComputeFastQKey function in dict.c in libxml2 before 2.9.3 allows context-dependent attackers to cause a denial of service via unspecified vectors.
44	CVE-2015-6838		DoS	2016-05-16	2017-11-03	5.0	None	Remote	Low	Not required	None	None	Partial
The xsl_ext_function_php function in ext/xsl/xsltprocessor.c in PHP before 5.4.45, 5.5.x before 5.5.29, and 5.6.x before 5.6.13, when libxml2 before 2.9.2 is used, does not consider the possibility of a NULL valuePop return value before proceeding with a free operation after the principal argument loop, which allows remote attackers to cause a denial of service (NULL pointer dereference and application crash) via a crafted XML document, a different vulnerability than CVE-2015-6837.
45	CVE-2015-6837		DoS	2016-05-16	2017-11-03	5.0	None	Remote	Low	Not required	None	None	Partial
The xsl_ext_function_php function in ext/xsl/xsltprocessor.c in PHP before 5.4.45, 5.5.x before 5.5.29, and 5.6.x before 5.6.13, when libxml2 before 2.9.2 is used, does not consider the possibility of a NULL valuePop return value before proceeding with a free operation during initial error checking, which allows remote attackers to cause a denial of service (NULL pointer dereference and application crash) via a crafted XML document, a different vulnerability than CVE-2015-6838.
46	CVE-2015-5312	399	DoS	2015-12-15	2017-09-13	7.1	None	Remote	Medium	Not required	None	None	Complete
The xmlStringLenDecodeEntities function in parser.c in libxml2 before 2.9.3 does not properly prevent entity expansion, which allows context-dependent attackers to cause a denial of service (CPU consumption) via crafted XML data, a different vulnerability than CVE-2014-3660.
47	CVE-2014-3660		DoS	2014-11-04	2016-12-07	5.0	None	Remote	Low	Not required	None	None	Partial
parser.c in libxml2 before 2.9.2 does not properly prevent entity expansion even when entity substitution has been disabled, which allows context-dependent attackers to cause a denial of service (CPU consumption) via a crafted XML document containing a large number of nested entity references, a variant of the "billion laughs" attack.
48	CVE-2013-2877	119	DoS Overflow	2013-07-10	2018-10-09	5.0	None	Remote	Low	Not required	None	None	Partial
parser.c in libxml2 before 2.9.0, as used in Google Chrome before 28.0.1500.71 and other products, allows remote attackers to cause a denial of service (out-of-bounds read) via a document that ends abruptly, related to the lack of certain checks for the XML_PARSER_EOF state.
49	CVE-2013-1969	399	DoS Exec Code Overflow	2013-04-25	2013-06-20	7.5	None	Remote	Low	Not required	Partial	Partial	Partial
Multiple use-after-free vulnerabilities in libxml2 2.9.0 and possibly other versions might allow context-dependent attackers to cause a denial of service (crash) and possibly execute arbitrary code via vectors related to the (1) htmlParseChunk and (2) xmldecl_done functions, as demonstrated by a buffer overflow in the xmlBufGetInputBase function.
50	CVE-2013-0339	264	DoS	2014-01-21	2016-05-05	6.8	None	Remote	Medium	Not required	Partial	Partial	Partial
libxml2 through 2.9.1 does not properly handle external entities expansion unless an application developer uses the xmlSAX2ResolveEntity or xmlSetExternalEntityLoader function, which allows remote attackers to cause a denial of service (resource consumption), send HTTP requests to intranet servers, or read arbitrary files via a crafted XML document, aka an XML External Entity (XXE) issue. NOTE: it could be argued that because libxml2 already provides the ability to disable external entity expansion, the responsibility for resolving this issue lies with application developers; according to this argument, this entry should be REJECTed and each affected application would need its own CVE.

Total number of vulnerabilities : 65 Page : 1 (This Page)2