Vulnerability · Published Apr 14, 2021 · Assigned by mitre
CVE-2021-27815
Medium 5.5
In plain English
A medium-severity security flaw in the exif package (Debian). There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 1.3% (higher than 70% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.
Severity (CVSS NVD)5.5Medium
Exploit odds (30 days)1.3%top 30.1% of all CVEs
Exploited in the wildNo reportsnot in CISA KEV
Attack toolingNoneno public tooling known
Official description
NULL Pointer Deference in the exif command line tool, when printing out XML formatted EXIF data, in exif v0.6.22 and earlier allows attackers to cause a Denial of Service (DoS) by uploading a malicious JPEG file, causing the application to crash.
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian:12 | exif | 0.6.22-3 | DEBIAN-CVE-2021-27815 |
| Debian:13 | exif | 0.6.22-3 | DEBIAN-CVE-2021-27815 |
| Debian:14 | exif | 0.6.22-3 | DEBIAN-CVE-2021-27815 |
| Ubuntu:22.04:LTS | exif | no fix listed | UBUNTU-CVE-2021-27815 |
| Ubuntu:24.04:LTS | exif | no fix listed | UBUNTU-CVE-2021-27815 |
| Ubuntu:25.10 | exif | no fix listed | UBUNTU-CVE-2021-27815 |
| Ubuntu:26.04:LTS | exif | no fix listed | UBUNTU-CVE-2021-27815 |
| Ubuntu:26.10 | exif | no fix listed | UBUNTU-CVE-2021-27815 |
Affected products (as reported)
References
- https://github.com/libexif/exif/issues/4
- https://github.com/libexif/exif/commit/f6334d9d32437ef13dc902f0a88a2be0063d9d1c
- https://github.com/libexif/exif/commit/eb84b0e3c5f2a86013b6fcfb800d187896a648fa
- FEDORA-2021-04f7b000fa vendor-advisory
- FEDORA-2021-477809f45f vendor-advisory
- FEDORA-2021-b2bd2b1d13 vendor-advisory
- GLSA-202210-28 vendor-advisory