Vulnerability · Published Jun 14, 2022 · Assigned by mitre
CVE-2021-40633
High 8.8
In plain English
A high-severity security flaw in the giflib package (Alpine). There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 1.7% (higher than 78% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.
Severity (CVSS NVD)8.8High
Exploit odds (30 days)1.7%top 22.5% of all CVEs
Exploited in the wildNo reportsnot in CISA KEV
Attack toolingNoneno public tooling known
Official 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.
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| Alpine:v3.20 | giflib | 5.2.2-r0 | ALPINE-CVE-2021-40633 |
| Alpine:v3.21 | giflib | 5.2.2-r0 | ALPINE-CVE-2021-40633 |
| Alpine:v3.22 | giflib | 5.2.2-r0 | ALPINE-CVE-2021-40633 |
| Alpine:v3.23 | giflib | 5.2.2-r0 | ALPINE-CVE-2021-40633 |
| Alpine:v3.24 | giflib | 5.2.2-r0 | ALPINE-CVE-2021-40633 |
| Debian:12 | giflib | no fix listed | DEBIAN-CVE-2021-40633 |
| Debian:13 | giflib | 5.2.2-1 | DEBIAN-CVE-2021-40633 |
| Debian:14 | giflib | 5.2.2-1 | DEBIAN-CVE-2021-40633 |
| Ubuntu:22.04:LTS | giflib | 5.1.9-2ubuntu0.1 | UBUNTU-CVE-2021-40633 |
| Ubuntu:22.04:LTS | giflib | 5.1.9-2ubuntu0.1 | USN-6824-1 |
Affected products (as reported)
References
- https://sourceforge.net/p/giflib/bugs/157/ x_refsource_MISC