SB2022010101 - Remote code execution in HarfBuzz
Published: January 1, 2022 Updated: September 26, 2022
Security Bulletin ID
SB2022010101
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 security vulnerability.
1) Out-of-bounds write (CVE-ID: CVE-2021-45931)
The vulnerability allows a remote attacker to compromise vulnerable system.
The vulnerability exists due to a boundary error when processing untrusted input within the hb_bit_set_invertible_t::set() function. A remote attacker can create a specially crafted file, trick the victim into opening it, trigger an out-of-bounds write and execute arbitrary code on the target system.
Remediation
Install update from vendor's website.
References
- https://github.com/google/oss-fuzz-vulns/blob/main/vulns/harfbuzz/OSV-2021-1159.yaml
- https://github.com/harfbuzz/harfbuzz/commit/d3e09bf4654fe5478b6dbf2b26ebab6271317d81
- https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=37425
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/5A7TCR2MY46YK3NHQZB3SLESUH354IEA/
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/DI6247WOAKB46CZZ6SCDSJVWWCW3GMZH/
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/4EAIZKL4O67FN2CWJYHYKZEMNYWNWO3D/
- https://security.gentoo.org/glsa/202209-11