Buffer overflow in Struktur Libheif
CVE-2023-0996
There is a vulnerability in the strided image data parsing code in the emscripten wrapper for libheif. An attacker could exploit this through a crafted image file to cause a buffer overflow in linear memory during a memcpy call.
Vulnerability class: Buffer Overflow
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.8 (High). Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.003 (22.3th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 22nd percentile — 22.3% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.003 · newest: 0.003 · change: 0.000
Affected products
- Struktur Libheif — versions 1.14.2
Weakness classification (CWE)
Public proof-of-concept exploits
References
- github.com/strukturag/libheif/pull/759 (Patch, Vendor Advisory)
- govtech-csg.github.io/security-advisories/2023/02/24/CVE-2023-0996.html (Third Party Advisory)
Frequently asked questions
- What is CVE-2023-0996?
- CVE-2023-0996 is a high-severity vulnerability in Struktur Libheif, classified under Buffer Copy without Checking Size of Input (Classic Buffer Overflow). CVSS score: 7.8/10. Published 2023-02-24.
- How severe is CVE-2023-0996?
- High severity. CVSS v3 base score is 7.8 out of 10.
- Is CVE-2023-0996 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.