SB2026032535 - Denial of service in ImageMagick

Description

This security bulletin contains information about 3 vulnerabilities.

1) Memory leak (CVE-ID: N/A)

CWE-ID: CWE-401 - Missing release of memory after effective lifetime

CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:U/U:Green

The vulnerability allows a remote attacker to perform DoS attack on the target system.

The vulnerability exists due memory leak in the META reader when processing the APP1JPEG input path. A remote attacker can force the application to leak memory and perform denial of service attack.

2) Stack-based buffer overflow (CVE-ID: CVE-2026-33536)

CWE-ID: CWE-121 - Stack-based buffer overflow

CVSSv4: CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Green

The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.

The vulnerability exists due to a boundary error in InterpretImageFilename. A remote unauthenticated attacker can trigger stack-based buffer overflow and cause a denial of service condition on the target system.

3) Out-of-bounds write (CVE-ID: CVE-2026-33535)

CWE-ID: CWE-787 - Out-of-bounds write

CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:U/U:Green

The vulnerability allows a remote attacker to compromise vulnerable system.

The vulnerability exists due to a boundary error when processing untrusted input in the X11 display interaction path. A remote attacker can trigger an out-of-bounds write and perform a denial of service (DoS) attack the target system.

Remediation

Install update from vendor's website.

References

• https://github.com/ImageMagick/ImageMagick/security/advisories/GHSA-9r56-3gjq-hqf7
• https://github.com/ImageMagick/ImageMagick/security/advisories/GHSA-8793-7xv6-82cf
• https://github.com/ImageMagick/ImageMagick/security/advisories/GHSA-mw3m-pqr2-qv7c