8.8

CVE-2021-40633: giflib_project giflib

CVSS: 8.8v3.1HighModified
AliasesALPINE-CVE-2021-40633UBUNTU-CVE-2021-40633DEBIAN-CVE-2021-40633
Published 14-06-2022Last modified 04-08-2024
Open JSON

Vulnerability summary

CVE-2021-40633 is a high (CVSS 8.8) vulnerability in giflib_project giflib. EPSS estimates a 1.72% chance of exploitation in the next 30 days, higher than 77% of scored vulnerabilities. 1 public exploit is recorded.

Overall risk
46/100
0100
Medium · default modelHow is this calculated?
CVSS score
8.8/10
010
High · v3.1 (NVD)
EPSS score
1.72%
0%100%
Low · 0.00 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits1reference

Advisory lineage

Upstream 0 · Downstream 4 · Related 4
OPENSUSE-SU-2024:13723-1SUSE-SU-2024:0786-1SUSE-SU-2024:1622-1USN-6824-1

Timeline

  1. 14-06-2022
    PublishedVulnerability first disclosed.
  2. 04-08-2024
    Last modifiedVulnerability information updated.

Description

A memory leak (out-of-memory) in gif2rgb in util/gif2rgb.c in giflib 5.1.4 allows remote attackers trigger an out of memory exception or denial of service via a gif format file.

CVSS metrics

5 scores · 4 sources · 2 versions

EPSS trend

Probability

1.72%

Chance of exploitation in the next 30 days

Percentile

77%

Versus all other CVEs

30-day change

0.00 pp

From 1.72% on 19-09-2026

19-09-202619-10-2026
EPSS score
1.72%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

1 found
  • referenceUnverified

    Exploit Reference (sourceforge.net)

    Maturity: unknown

Weaknesses

CWE · root cause

Affected systems

Alpine1 product
  • giflib< 5.2.2-r0
Debian1 product
  • giflibAll versions (No fix recorded) | < 5.2.2-1
Giflib_project1 product
Ubuntu1 product
  • giflib< 5.1.4-0.3~16.04.1+esm1 | < 5.1.4-2ubuntu0.1+esm1 | < 5.1.9-1ubuntu0.1 | < 5.1.9-2ubuntu0.1

4 vendors · 4 products

References

7 links