USN-8739-2: ImageMagick vulnerabilities
Ubuntu releases USN-8739-2, extending ImageMagick fixes for four CVEs including possible arbitrary code execution to Ubuntu 24.04 LTS.
USN-8739-2 provides the ImageMagick fixes from USN-8739-1 for Ubuntu 24.04 LTS. The flaws stem from incorrect handling of certain images that could allow an attacker to cause a denial of service or possibly execute arbitrary code. The affected CVEs are CVE-2026-56366, CVE-2026-56368, CVE-2026-56371, and CVE-2026-56373.
- Fixes four ImageMagick CVEs for Ubuntu 24.04 LTS
- Crafted images could cause denial of service or arbitrary code execution
- Follows earlier USN-8739-1 covering older Ubuntu releases
Vulnerabilities mentionedAll →
| CVE | Vulnerability | CVSS | EPSS | Flags | Affected | Exposure | Published |
|---|---|---|---|---|---|---|---|
| CVE-2026-56373 +1 in the same advisory: …56366 | ImageMagick before 7.1.2-15 contains a use-after-free vulnerability in the PDB decoder that uses a stale pointer when memory allocation fails. ImageMagick before 7.1.2-15 contains a use-after-free vulnerability in the PDB decoder that uses a stale pointer when memory allocation fails. Attackers can trigger this vulnerability by processing malicious PDB files to cause crashes or write a single zero byte to freed memory. NVD description · AI analysis pending | 6.3 group max | <1% |
| — | ||
| CVE-2026-56368 | ImageMagick before 7.1.2-15 contains a memory leak vulnerability in multiple coders that write raw pixel data where allocated objects are not properly freed. ImageMagick before 7.1.2-15 contains a memory leak vulnerability in multiple coders that write raw pixel data where allocated objects are not properly freed. Attackers can trigger this leak by processing specially crafted images, causing memory exhaustion and denial of service. NVD description · AI analysis pending | 6.3 | <1% |
| — | ||
| CVE-2026-56371 | ImageMagick before 7.1.2-15 and 6.9.13-40 contains a memory leak in coders/txt.c when processing TXT files with texture attributes: ImageMagick before 7.1.2-15 and 6.9.13-40 contains a memory leak in coders/txt.c when processing TXT files with texture attributes: the texture object allocated via ReadImage is not released when GetTypeMetrics fails, leaking memory each time a crafted TXT file with a texture attribute is processed. NVD description · AI analysis pending | 6.9 | <1% |
| — |
USN-8739-1 fixed vulnerabilities in ImageMagick. This update provides the corresponding fixes for Ubuntu 24.04 LTS. Original advisory details: It was discovered that ImageMagick incorrectly handled certain images. An attacker could possibly use this issue to cause a denial of service. This issue only affected Ubuntu 14.04 LTS, Ubuntu 16.04 LTS, Ubuntu 18.04 LTS, Ubuntu 20.04 LTS, and Ubuntu 22.04 LTS. (CVE-2026-56366, CVE-2026-56368, CVE-2026-56371, CVE-2026-56373) It was discovered that ImageMagick incorrectly handled certain images. An attacker could possibly use this issue to cause a denial of service or execute arbitrary code. This issue only affected Ubuntu 22.04 LTS and Ubuntu 26.04…
This source does not provide full text. Read it at ubuntu.com.