CVE-2020-23109: struktur libheif Classic Buffer Overflow
CVSS: 8.1v3.1HighModified
AliasesUBUNTU-CVE-2020-23109DEBIAN-CVE-2020-23109
Published 03-11-2021Last modified 04-08-2024
Vulnerability summary
CVE-2020-23109 is a high (CVSS 8.1) Classic Buffer Overflow vulnerability in struktur libheif. EPSS estimates a 1.34% chance of exploitation in the next 30 days, higher than 70.9% of scored vulnerabilities. 1 public exploit is recorded.
CVSS score
8.1/10
010
High · v3.1 (NVD)EPSS score
1.34%
0%100%
Low · 0.00 pp in 30 daysKEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits1github
Advisory lineage
Upstream 0 · Downstream 1 · Related 1Timeline
- 03-11-2021PublishedVulnerability first disclosed.
- 04-08-2024Last modifiedVulnerability information updated.
Description
Buffer overflow vulnerability in function convert_colorspace in heif_colorconversion.cc in libheif v1.6.2, allows attackers to cause a denial of service and disclose sensitive information, via a crafted HEIF file.
CVSS metrics
4 scores · 3 sources · 2 versionsHigh 8.1Preferred score · NVD (NIST)
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:HSourcesAll 3 agree
- OSV · UbuntuEcosystem advisory · calculated8.1HighCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:H
- OSV · DebianEcosystem advisory · calculated8.1HighCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:H
Medium 5.8Preferred score · NVD (NIST)
AV:N/AC:M/Au:N/C:P/I:N/A:PSourcesSingle source
EPSS trend
Probability
1.34%
Chance of exploitation in the next 30 days
Percentile
71%
Versus all other CVEs
30-day change
0.00 pp
From 1.34% on 19-09-2026
19-09-202619-10-2026
EPSS score1.34%
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
1 foundLibheif
Maturity: poc
Weaknesses
CWE · root causeAffected systems
Debian1 product
- libheif< 1.8.0-1
Struktur1 product
- libheif1.6.2
Ubuntu1 product
- libheifAll versions (No fix recorded) | < 1.6.1-1ubuntu0.1~esm1
3 vendors · 3 products
