CVE-2021-34121 — HIGH (7.8)

Vulnerability Description

An Out of Bounds flaw was discovered in htmodoc 1.9.12 in function parse_tree() in toc.cxx, this possibly leads to memory layout information leaking in the data. This might be used in a chain of vulnerability in order to reach code execution.

CVSS Score

7.8

HIGH

CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

REQUIRED

Scope

UNCHANGED

Confidentiality

HIGH

Integrity

HIGH

Availability

HIGH

Affected Products

Vendor	Product	Versions
Htmldoc Project	Htmldoc	1.9.12

Related Weaknesses (CWE)

CWE-125

References

https://github.com/michaelrsweet/htmldoc/commit/c67bbd8756f015e33e4ba639a40c7f9dPatch
https://github.com/michaelrsweet/htmldoc/issues/433ExploitIssue Tracking
https://github.com/michaelrsweet/htmldoc/commit/c67bbd8756f015e33e4ba639a40c7f9dPatch
https://github.com/michaelrsweet/htmldoc/issues/433ExploitIssue Tracking

FAQ

What is CVE-2021-34121?

CVE-2021-34121 is a vulnerability with a CVSS score of 7.8 (HIGH). An Out of Bounds flaw was discovered in htmodoc 1.9.12 in function parse_tree() in toc.cxx, this possibly leads to memory layout information leaking in the data. This might be used in a chain of vulne...

How severe is CVE-2021-34121?

CVE-2021-34121 has been rated HIGH with a CVSS base score of 7.8/10. Review the CVSS metrics above for detailed severity breakdown.

Is there a patch for CVE-2021-34121?

Check the references section above for vendor advisories and patch information. Affected products include: Htmldoc Project Htmldoc.