Resource exhaustion in Harfbuzz Project
CVE-2023-25193
hb-ot-layout-gsubgpos.hh in HarfBuzz through 6.0.0 allows attackers to trigger O(n^2) growth via consecutive marks during the process of looking back for base glyphs when attaching marks.
EPSS: 0.018 (76.4th 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
- Harfbuzz_project Harfbuzz
- Fedoraproject Fedora — versions 36
- N/a — versions n/a
Weakness classification (CWE)
Public proof-of-concept exploits
References
- cve@mitre.org (Patch, Third Party Advisory)
- cve@mitre.org (Patch, Third Party Advisory)
- cve@mitre.org (Third Party Advisory)
- cve@mitre.org (vendor-advisory)
- cve@mitre.org (vendor-advisory)
- cve@mitre.org
Frequently asked questions
- What is CVE-2023-25193?
- CVE-2023-25193 is a high-severity vulnerability in Harfbuzz Project, classified under Allocation of Resources Without Limits or Throttling. CVSS score: 7.5/10. Published 2023-02-04.
- How severe is CVE-2023-25193?
- High severity. CVSS v3 base score is 7.5 out of 10.
- Is CVE-2023-25193 known to be exploited?
- 4 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.