CVE-2023-0996: struktur libheif Classic Buffer Overflow
CVSS: 7.8v3.1HighModified
AliasesMGASA-2023-0144SUSE-SU-2023:1766-1UBUNTU-CVE-2023-0996DEBIAN-CVE-2023-0996
Published 24-02-2023Last modified 11-03-2025
Vulnerability summary
CVE-2023-0996 is a high (CVSS 7.8) Classic Buffer Overflow vulnerability in struktur libheif. EPSS estimates a 0.31% chance of exploitation in the next 30 days, higher than 22% of scored vulnerabilities.
CVSS score
7.8/10
010
High · v3.1 (CVE.org)EPSS score
0.31%
0%100%
Low · 0.00 pp in 30 daysKEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded
Advisory lineage
Upstream 0 · Downstream 3 · Related 2Timeline
- 24-02-2023PublishedVulnerability first disclosed.
- 11-03-2025Last modifiedVulnerability information updated.
Description
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.
CVSS metrics
4 scores · 4 sources · 1 versionHigh 7.8Preferred score · CVE.org (CNA)
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:HSourcesAll 4 agree
- OSV · UbuntuEcosystem advisory · calculated7.8HighCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
- OSV · DebianEcosystem advisory · calculated7.8HighCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
- NVDNIST7.8HighCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
EPSS trend
Probability
0.31%
Chance of exploitation in the next 30 days
Percentile
22%
Versus all other CVEs
30-day change
0.00 pp
From 0.31% on 19-09-2026
19-09-202619-10-2026
EPSS score0.31%
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeAffected systems
Debian1 product
- libheif< 1.15.1-1
Mageia1 product
- libheif< 1.10.0-1.2.mga8 | < 1.10.0-1.2.mga8.tainted
Opensuse1 product
- libheif&distro=openSUSE Leap 15.4< 1.12.0-150400.3.8.1
Struktur1 product
- libheif1.14.2
Suse1 product
- libheif&distro=SUSE Linux Enterprise Module for Desktop Applications 15 SP4< 1.12.0-150400.3.8.1
Ubuntu1 product
- libheif< 1.6.1-1ubuntu0.1~esm1 | < 1.12.0-2ubuntu0.1~esm1
6 vendors · 6 products
