CVE-2021-30498: fedoraproject fedora Out-of-bounds Write
CVSS: 7.8v3.1HighModified
AliasesUBUNTU-CVE-2021-30498DEBIAN-CVE-2021-30498
Published 26-05-2021Last modified 03-11-2025
Vulnerability summary
CVE-2021-30498 is a high (CVSS 7.8) Out-of-bounds Write vulnerability in fedoraproject fedora. EPSS estimates a 1.35% chance of exploitation in the next 30 days, higher than 71% of scored vulnerabilities. 1 public exploit is recorded.
CVSS score
7.8/10
010
High · v3.1 (NVD)EPSS score
1.35%
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 10 · Related 7Timeline
- 26-05-2021PublishedVulnerability first disclosed.
- 03-11-2025Last modifiedVulnerability information updated.
Description
A flaw was found in libcaca. A heap buffer overflow in export.c in function export_tga might lead to memory corruption and other potential consequences.
CVSS metrics
4 scores · 3 sources · 2 versionsHigh 7.8Preferred score · NVD (NIST)
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:HSourcesAll 3 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
Medium 6.8Preferred score · NVD (NIST)
AV:N/AC:M/Au:N/C:P/I:P/A:PSourcesSingle source
EPSS trend
Probability
1.35%
Chance of exploitation in the next 30 days
Percentile
71%
Versus all other CVEs
30-day change
0.00 pp
From 1.35% on 19-09-2026
19-09-202619-10-2026
EPSS score1.35%
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
1 foundLibcaca
Maturity: poc
Weaknesses
CWE · root causeAffected systems
Debian1 product
- libcaca< 0.99.beta19-3
Fedoraproject1 product
- fedoraEOL34 | 35 | 36
Libcaca_project1 product
- libcaca0.99:beta14 | 0.99:beta15 | 0.99:beta16 | 0.99:beta17 | 0.99:beta18 | 0.99:beta19
Ubuntu1 product
- libcaca< 0.99.beta18-1ubuntu5.1+esm2 | < 0.99.beta19-2ubuntu0.16.04.2+esm1 | < 0.99.beta19-2ubuntu0.18.04.3 | < 0.99.beta19-2.1ubuntu1.20.04.2 | < 0.99.beta19-2.2ubuntu3
4 vendors · 4 products
