Vulnerability Details : CVE-2021-23165
A flaw was found in htmldoc before v1.9.12. Heap buffer overflow in pspdf_prepare_outpages(), in ps-pdf.cxx may lead to execute arbitrary code and denial of service.
Vulnerability category: OverflowMemory CorruptionExecute codeDenial of service
Products affected by CVE-2021-23165
- cpe:2.3:a:htmldoc_project:htmldoc:*:*:*:*:*:*:*:*
- cpe:2.3:a:htmldoc_project:htmldoc:1.9.12:*:*:*:*:*:*:*
Exploit prediction scoring system (EPSS) score for CVE-2021-23165
0.64%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 80 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2021-23165
| Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
|---|---|---|---|---|---|---|
|
10.0
|
HIGH | AV:N/AC:L/Au:N/C:C/I:C/A:C |
10.0
|
10.0
|
NIST | |
|
9.8
|
CRITICAL | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
3.9
|
5.9
|
NIST |
CWE ids for CVE-2021-23165
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A heap overflow condition is a buffer overflow, where the buffer that can be overwritten is allocated in the heap portion of memory, generally meaning that the buffer was allocated using a routine such as malloc().Assigned by: secalert@redhat.com (Secondary)
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The product writes data past the end, or before the beginning, of the intended buffer.Assigned by: nvd@nist.gov (Primary)
References for CVE-2021-23165
-
https://github.com/michaelrsweet/htmldoc/commit/6e8a95561988500b5b5ae4861b3b0cbf4fba517f
Fix a number-up crash bug (Issue #413) · michaelrsweet/htmldoc@6e8a955 · GitHubPatch;Third Party Advisory
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https://github.com/michaelrsweet/htmldoc/commit/6e8a95561988500b5b5ae4861b3b0cbf4fba517f.patch
Mailing List;Third Party Advisory
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https://bugzilla.redhat.com/show_bug.cgi?id=1967014
1967014 – (CVE-2021-23165) CVE-2021-23165 htmldoc: heap-buffer-overflow in pspdf_prepare_outpages()Exploit;Issue Tracking;Patch;Third Party Advisory
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https://github.com/michaelrsweet/htmldoc/issues/413
AddressSanitizer: heap-buffer-overflow in pspdf_prepare_outpages() in ps-pdf.cxx:1338:15 · Issue #413 · michaelrsweet/htmldoc · GitHubExploit;Issue Tracking;Third Party Advisory
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