Vulnerability Details : CVE-2016-4975
Possible CRLF injection allowing HTTP response splitting attacks for sites which use mod_userdir. This issue was mitigated by changes made in 2.4.25 and 2.2.32 which prohibit CR or LF injection into the "Location" or other outbound header key or value. Fixed in Apache HTTP Server 2.4.25 (Affected 2.4.1-2.4.23). Fixed in Apache HTTP Server 2.2.32 (Affected 2.2.0-2.2.31).
Products affected by CVE-2016-4975
- cpe:2.3:a:apache:http_server:2.2.0:*:*:*:*:*:*:*
- cpe:2.3:a:apache:http_server:2.2.3:*:*:*:*:*:*:*
- cpe:2.3:a:apache:http_server:2.2.4:*:*:*:*:*:*:*
- cpe:2.3:a:apache:http_server:2.2.2:*:*:*:*:*:*:*
- cpe:2.3:a:apache:http_server:2.2.6:*:*:*:*:*:*:*
- cpe:2.3:a:apache:http_server:2.2.8:*:*:*:*:*:*:*
- cpe:2.3:a:apache:http_server:2.2.9:*:*:*:*:*:*:*
- cpe:2.3:a:apache:http_server:2.2.12:*:*:*:*:*:*:*
- cpe:2.3:a:apache:http_server:2.2.13:*:*:*:*:*:*:*
- cpe:2.3:a:apache:http_server:2.2.10:*:*:*:*:*:*:*
- cpe:2.3:a:apache:http_server:2.2.11:*:*:*:*:*:*:*
- cpe:2.3:a:apache:http_server:2.2.14:*:*:*:*:*:*:*
- cpe:2.3:a:apache:http_server:2.2.15:*:*:*:*:*:*:*
- cpe:2.3:a:apache:http_server:2.2.18:*:*:*:*:*:*:*
- cpe:2.3:a:apache:http_server:2.2.19:*:*:*:*:*:*:*
- cpe:2.3:a:apache:http_server:2.2.16:*:*:*:*:*:*:*
- cpe:2.3:a:apache:http_server:2.2.17:*:*:*:*:*:*:*
- cpe:2.3:a:apache:http_server:2.2.21:*:*:*:*:*:*:*
- cpe:2.3:a:apache:http_server:2.2.20:*:*:*:*:*:*:*
- cpe:2.3:a:apache:http_server:2.2.22:*:*:*:*:*:*:*
- cpe:2.3:a:apache:http_server:2.2.23:*:*:*:*:*:*:*
- cpe:2.3:a:apache:http_server:2.4.1:*:*:*:*:*:*:*
- cpe:2.3:a:apache:http_server:2.4.2:*:*:*:*:*:*:*
- cpe:2.3:a:apache:http_server:2.4.3:*:*:*:*:*:*:*
- cpe:2.3:a:apache:http_server:2.2.24:*:*:*:*:*:*:*
- cpe:2.3:a:apache:http_server:2.2.25:*:*:*:*:*:*:*
- cpe:2.3:a:apache:http_server:2.4.6:*:*:*:*:*:*:*
- cpe:2.3:a:apache:http_server:2.4.4:*:*:*:*:*:*:*
- cpe:2.3:a:apache:http_server:2.4.9:*:*:*:*:*:*:*
- cpe:2.3:a:apache:http_server:2.4.7:*:*:*:*:*:*:*
- cpe:2.3:a:apache:http_server:2.2.26:*:*:*:*:*:*:*
- cpe:2.3:a:apache:http_server:2.2.27:*:*:*:*:*:*:*
- cpe:2.3:a:apache:http_server:2.4.10:*:*:*:*:*:*:*
- cpe:2.3:a:apache:http_server:2.4.12:*:*:*:*:*:*:*
- cpe:2.3:a:apache:http_server:2.4.16:*:*:*:*:*:*:*
- cpe:2.3:a:apache:http_server:2.4.17:*:*:*:*:*:*:*
- cpe:2.3:a:apache:http_server:2.4.18:*:*:*:*:*:*:*
- cpe:2.3:a:apache:http_server:2.4.20:*:*:*:*:*:*:*
- cpe:2.3:a:apache:http_server:2.4.23:*:*:*:*:*:*:*
- cpe:2.3:a:apache:http_server:2.2.29:*:*:*:*:*:*:*
- cpe:2.3:a:apache:http_server:2.2.31:*:*:*:*:*:*:*
Threat overview for CVE-2016-4975
Top countries where our scanners detected CVE-2016-4975
Top open port discovered on systems with this issue
80
IPs affected by CVE-2016-4975 4,950,057
Threat actors abusing to this issue?
Yes
Find out if you* are
affected by CVE-2016-4975!
*Directly or indirectly through your vendors, service providers and 3rd parties.
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attack surface intelligence
from SecurityScorecard.
Exploit prediction scoring system (EPSS) score for CVE-2016-4975
66.18%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 98 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2016-4975
| Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
|---|---|---|---|---|---|---|
|
4.3
|
MEDIUM | AV:N/AC:M/Au:N/C:N/I:P/A:N |
8.6
|
2.9
|
NIST | |
|
6.1
|
MEDIUM | CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N |
2.8
|
2.7
|
NIST |
CWE ids for CVE-2016-4975
-
The product uses CRLF (carriage return line feeds) as a special element, e.g. to separate lines or records, but it does not neutralize or incorrectly neutralizes CRLF sequences from inputs.Assigned by: nvd@nist.gov (Primary)
References for CVE-2016-4975
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https://lists.apache.org/thread.html/r75cbe9ea3e2114e4271bbeca7aff96117b50c1b6eb7c4772b0337c1f@%3Ccvs.httpd.apache.org%3E
svn commit: r1075470 [3/4] - in /websites/staging/httpd/trunk/content: ./ security/json/CVE-2020-13938.json security/vulnerabilities_13.html security/vulnerabilities_20.html security/vulnerabilities_2
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https://lists.apache.org/thread.html/r9ea3538f229874c80a10af473856a81fbf5f694cd7f471cc679ba70b@%3Ccvs.httpd.apache.org%3E
svn commit: r1073140 [3/4] - in /websites/staging/httpd/trunk/content: ./ security/cvejsontohtml.py security/vulnerabilities_13.html security/vulnerabilities_20.html security/vulnerabilities_22.html s
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https://security.netapp.com/advisory/ntap-20180926-0006/
CVE-2016-4975 Apache HTTP Server Vulnerability in NetApp Products | NetApp Product SecurityThird Party Advisory
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https://lists.apache.org/thread.html/f7f95ac1cd9895db2714fa3ebaa0b94d0c6df360f742a40951384a53@%3Ccvs.httpd.apache.org%3E
svn commit: r1048742 [3/4] - in /websites/staging/httpd/trunk/content: ./ security/vulnerabilities-httpd.xml security/vulnerabilities_13.html security/vulnerabilities_20.html security/vulnerabilities_
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https://lists.apache.org/thread.html/rdca61ae990660bacb682295f2a09d34612b7bb5f457577fe17f4d064@%3Ccvs.httpd.apache.org%3E
svn commit: r1073146 [2/3] - in /websites/staging/httpd/trunk/content: ./ security/cvejsontohtml.py security/vulnerabilities-httpd.xml security/vulnerabilities_22.html security/vulnerabilities_24.html
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https://lists.apache.org/thread.html/re3d27b6250aa8548b8845d314bb8a350b3df326cacbbfdfe4d455234@%3Ccvs.httpd.apache.org%3E
Pony Mail!
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https://lists.apache.org/thread.html/rd18c3c43602e66f9cdcf09f1de233804975b9572b0456cc582390b6f@%3Ccvs.httpd.apache.org%3E
Pony Mail!
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https://support.hpe.com/hpsc/doc/public/display?docLocale=en_US&docId=emr_na-hpesbux03908en_us
HPESBUX03908 rev.1 - HP-UX Web Server Suite running Apache on HP-UX 11iv3, Multiple Remote Vulnerabilities.
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https://lists.apache.org/thread.html/rc998b18880df98bafaade071346690c2bc1444adaa1a1ea464b93f0a@%3Ccvs.httpd.apache.org%3E
svn commit: r1073140 [4/4] - in /websites/staging/httpd/trunk/content: ./ security/cvejsontohtml.py security/vulnerabilities_13.html security/vulnerabilities_20.html security/vulnerabilities_22.html s
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https://lists.apache.org/thread.html/r9f93cf6dde308d42a9c807784e8102600d0397f5f834890708bf6920@%3Ccvs.httpd.apache.org%3E
svn commit: r1073149 [1/13] - in /websites/staging/httpd/trunk/content: ./ security/ security/json/ - Pony Mail
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https://lists.apache.org/thread.html/rd336919f655b7ff309385e34a143e41c503e133da80414485b3abcc9@%3Ccvs.httpd.apache.org%3E
svn commit: r1075360 [3/3] - in /websites/staging/httpd/trunk/content: ./ security/json/CVE-2021-31618.json security/vulnerabilities_13.html security/vulnerabilities_20.html security/vulnerabilities_2
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https://lists.apache.org/thread.html/84a3714f0878781f6ed84473d1a503d2cc382277e100450209231830@%3Ccvs.httpd.apache.org%3E
Pony Mail!
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https://lists.apache.org/thread.html/56c2e7cc9deb1c12a843d0dc251ea7fd3e7e80293cde02fcd65286ba@%3Ccvs.httpd.apache.org%3E
svn commit: r1048743 [4/4] - in /websites/staging/httpd/trunk/content: ./ security/vulnerabilities-httpd.xml security/vulnerabilities_13.html security/vulnerabilities_20.html security/vulnerabilities_
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https://lists.apache.org/thread.html/re1e3a24664d35bcd0a0e793e0b5fc6ca6c107f99a1b2c545c5d4b467@%3Ccvs.httpd.apache.org%3E
Pony Mail!
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https://lists.apache.org/thread.html/rf6449464fd8b7437704c55f88361b66f12d5b5f90bcce66af4be4ba9@%3Ccvs.httpd.apache.org%3E
Pony Mail!
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https://lists.apache.org/thread.html/rcc44594d4d6579b90deccd4536b5d31f099ef563df39b094be286b9e@%3Ccvs.httpd.apache.org%3E
svn commit: r1073146 [3/3] - in /websites/staging/httpd/trunk/content: ./ security/cvejsontohtml.py security/vulnerabilities-httpd.xml security/vulnerabilities_22.html security/vulnerabilities_24.html
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https://httpd.apache.org/security/vulnerabilities_24.html#CVE-2016-4975
httpd 2.4 vulnerabilities - The Apache HTTP Server ProjectVendor Advisory
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https://lists.apache.org/thread.html/rb14daf9cc4e28d18cdc15d6a6ca74e565672fabf7ad89541071d008b@%3Ccvs.httpd.apache.org%3E
svn commit: r1073149 [10/13] - in /websites/staging/httpd/trunk/content: ./ security/ security/json/ - Pony Mail
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https://httpd.apache.org/security/vulnerabilities_22.html#CVE-2016-4975
httpd 2.2 vulnerabilities - The Apache HTTP Server ProjectVendor Advisory
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https://lists.apache.org/thread.html/r57608dc51b79102f3952ae06f54d5277b649c86d6533dcd6a7d201f7@%3Ccvs.httpd.apache.org%3E
Pony Mail!
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https://lists.apache.org/thread.html/8d63cb8e9100f28a99429b4328e4e7cebce861d5772ac9863ba2ae6f@%3Ccvs.httpd.apache.org%3E
svn commit: r1048743 [3/4] - in /websites/staging/httpd/trunk/content: ./ security/vulnerabilities-httpd.xml security/vulnerabilities_13.html security/vulnerabilities_20.html security/vulnerabilities_
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https://lists.apache.org/thread.html/rfbaf647d52c1cb843e726a0933f156366a806cead84fbd430951591b@%3Ccvs.httpd.apache.org%3E
svn commit: r1058587 [3/4] - in /websites/staging/httpd/trunk/content: ./ security/vulnerabilities-httpd.xml security/vulnerabilities_13.html security/vulnerabilities_20.html security/vulnerabilities_
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http://www.securityfocus.com/bid/105093
Apache HTTP Server CVE-2016-4975 HTTP Response Splitting VulnerabilityThird Party Advisory;VDB Entry
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https://lists.apache.org/thread.html/r04e89e873d54116a0635ef2f7061c15acc5ed27ef7500997beb65d6f@%3Ccvs.httpd.apache.org%3E
svn commit: r1073139 [10/13] - in /websites/staging/httpd/trunk/content: ./ security/json/ - Pony Mail
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