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.
Published · last modified .
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.
EPSS exploit prediction
EPSS: 0.018 (77.8th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 78th percentile — 77.8% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.018 · newest: 0.018 · change: 0.000
Affected products
- Harfbuzz Project
- Fedoraproject Fedora — versions 36
Weakness classification (CWE)
Public proof-of-concept exploits
References
- github.com/harfbuzz/harfbuzz/commit/85be877925ddbf34f74a1229f3ca1716bb6170dc (Patch, Third Party Advisory)
- chromium.googlesource.com/chromium/src/+/e1f324aa681af54101c1f2d173d92adb80e370… (Patch, Third Party Advisory)
- github.com/harfbuzz/harfbuzz/blob/2822b589bc837fae6f66233e2cf2eef0f6ce8470/src/… (Third Party Advisory)
- lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/… (vendor-advisory)
- lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/… (vendor-advisory)
- security.netapp.com/advisory/ntap-20230725-0006/
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.