Vulnerability Details : CVE-2021-23191
Potential exploit
A security issue was found in htmldoc v1.9.12 and before. A NULL pointer dereference in the function image_load_jpeg() in image.cxx may result in denial of service.
Vulnerability category: Memory CorruptionDenial of service
Products affected by CVE-2021-23191
- cpe:2.3:a:htmldoc_project:htmldoc:*:*:*:*:*:*:*:*
Exploit prediction scoring system (EPSS) score for CVE-2021-23191
0.15%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 32 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2021-23191
| Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
|---|---|---|---|---|---|---|
|
6.8
|
MEDIUM | AV:N/AC:M/Au:N/C:P/I:P/A:P |
8.6
|
6.4
|
NIST | |
|
7.8
|
HIGH | CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H |
1.8
|
5.9
|
NIST |
CWE ids for CVE-2021-23191
-
The product dereferences a pointer that it expects to be valid but is NULL.Assigned by:
- nvd@nist.gov (Primary)
- secalert@redhat.com (Secondary)
References for CVE-2021-23191
-
https://github.com/michaelrsweet/htmldoc/issues/415
AddressSanitizer: SEGV on unknown address 0x000000000014 · Issue #415 · michaelrsweet/htmldoc · GitHubExploit;Issue Tracking;Third Party Advisory
-
https://ubuntu.com/security/CVE-2021-23191
CVE-2021-23191 | UbuntuThird Party Advisory
-
https://github.com/michaelrsweet/htmldoc/commit/369b2ea1fd0d0537ba707f20a2f047b6afd2fbdc
Fix JPEG error handling (Issue #415) · michaelrsweet/htmldoc@369b2ea · GitHubPatch;Third Party Advisory
-
https://bugzilla.redhat.com/show_bug.cgi?id=1967022
1967022 – (CVE-2021-23191) CVE-2021-23191 htmldoc: null pointer dereference in function image_load_jpeg()Issue Tracking;Patch;Third Party Advisory
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