Bug 2005467 (CVE-2020-21529)
Summary: | CVE-2020-21529 transfig: stack-based buffer overflow in bezier_spline() in genepic.c | ||
---|---|---|---|
Product: | [Other] Security Response | Reporter: | Guilherme de Almeida Suckevicz <gsuckevi> |
Component: | vulnerability | Assignee: | Nobody <nobody> |
Status: | CLOSED WONTFIX | QA Contact: | |
Severity: | medium | Docs Contact: | |
Priority: | medium | ||
Version: | unspecified | CC: | databases-maint, hhorak, kasal, mschorm, pkubat, zmiklank |
Target Milestone: | --- | Keywords: | Security |
Target Release: | --- | ||
Hardware: | All | ||
OS: | Linux | ||
Whiteboard: | |||
Fixed In Version: | Doc Type: | If docs needed, set a value | |
Doc Text: |
In transfig's fig2dev 3.2.7b it is possible for an attacker to create a specially crafted file that causes a stack buffer overflow due to improper range checks. This leads to a denial of service, impacting availability of the program.
|
Story Points: | --- |
Clone Of: | Environment: | ||
Last Closed: | 2023-12-13 13:42:30 UTC | Type: | --- |
Regression: | --- | Mount Type: | --- |
Documentation: | --- | CRM: | |
Verified Versions: | Category: | --- | |
oVirt Team: | --- | RHEL 7.3 requirements from Atomic Host: | |
Cloudforms Team: | --- | Target Upstream Version: | |
Embargoed: | |||
Bug Depends On: | 2005517, 2005518 | ||
Bug Blocks: | 2005482 |
Description
Guilherme de Almeida Suckevicz
2021-09-17 18:09:43 UTC
After analysis and testing with provided PoC, RHEL 8.4.0 - 9.0.0 is affected by this flaw. The patch to fix this flaw is: https://sourceforge.net/p/mcj/fig2dev/ci/e3cee2576438f47a3b8678c6960472e625f8f7d7/ and can be easily backported to fix the existing flaws. Analysis did not show any sign of being able to achieve code execution with this flaw. The flaw present caused a denial of service to the program affecting availability, but with no found effects on Integrity or Confidentiality of data. As such the CVSS score should be 5.5/CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H |