SB2021102634 - Fedora 34 update for mupdf, python-PyMuPDF, zathura-pdf-mupdf
Published: October 26, 2021
Security Bulletin ID
SB2021102634
CSH Severity
High
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Remote access
Highest impact
Code execution
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 vulnerability.
1) Out-of-bounds write (CVE-ID: CVE-2021-37220)
CWE-ID: CWE-787 - Out-of-bounds write
CVSSv4: CVSS:4.0/AV:L/AC:L/AT:P/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Amber
The vulnerability allows a remote attacker to compromise vulnerable system.
The vulnerability exists due to a boundary error when processing untrusted input in the cached color converter. A remote attacker can trigger out-of-bounds write and execute arbitrary code on the target system.
Remediation
Install update from vendor's website.