Buffer overflow in Sass-Lang Libsass
CVE-2022-43357
Stack overflow vulnerability in ast_selectors.cpp in function Sass::CompoundSelector::has_real_parent_ref in libsass:3.6.5-8-g210218, which can be exploited by attackers to causea denial of service (DoS). Also affects the command line driver for libsass, sassc 3.6.2.
Vulnerability class: Buffer Overflow
EPSS: 0.013 (66.4th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.
Affected products
- Sass-lang Libsass — versions 3.6.5-8-g210218
- Sass-lang Sassc — versions 3.6.2
- N/a — versions n/a
Weakness classification (CWE)
Public proof-of-concept exploits
References
- cve@mitre.org (Product)
- cve@mitre.org (Permissions Required, Exploit, Third Party Advisory)
- cve@mitre.org (Exploit, Issue Tracking, Vendor Advisory)
Frequently asked questions
- What is CVE-2022-43357?
- CVE-2022-43357 is a high-severity vulnerability in Sass-Lang Libsass, classified under Out-of-bounds Write. CVSS score: 7.5/10. Published 2023-08-22.
- How severe is CVE-2022-43357?
- High severity. CVSS v3 base score is 7.5 out of 10.
- Is CVE-2022-43357 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.