Ubuntu ImageMagick Important DoS Buffer Overflow Vuln 2026

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Several security issues were fixed in ImageMagick. Software Description: - imagemagick: Image manipulation programs and library 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 LTS. (CVE-2026-56370) It was discovered that ImageMagick incorrectly handled certain images. An attacker could possibly use this issue to cause a denial of service or expose sensitive information. This issue only affected Ubuntu 14.04 LTS, Ubuntu 16.04 LTS, Ubuntu 18.04 LTS, Ubuntu 20.04 LTS, and U... Read the Full Advisory

Several security issues were fixed in ImageMagick.

Software Description:

- imagemagick: Image manipulation programs and library

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 LTS. (CVE-2026-56370)

It was discovered that ImageMagick incorrectly handled certain images. An

attacker could possibly use this issue to cause a denial of service or

expose sensitive information. This issue only affected Ubuntu 14.04 LTS,

Ubuntu 16.04 LTS, Ubuntu 18.04 LTS, Ubuntu 20.04 LTS, and U...

The problem can be corrected by updating your system to the following package versions: Ubuntu 26.04 LTS imagemagick 8:7.1.2.18+dfsg1-1ubuntu0.1~esm2 Available with Ubuntu Pro imagemagick-7-common 8:7.1.2.18+dfsg1-1ubuntu0.1~esm2 Available with Ubuntu Pro imagemagick-7-doc 8:7.1.2.18+dfsg1-1ubuntu0.1~esm2 Available with Ubuntu Pro imagemagick-7.q16 8:7.1.2.18+dfsg1-1ubuntu0.1~esm2 Available with Ubuntu Pro imagemagick-7.q16hdri 8:7.1.2.18+dfsg1-1ubuntu0.1~esm2 Available with Ubuntu Pro libimage-magick-perl 8:7.1.2.18+dfsg1-1ubuntu0.1~esm2 Available with Ubuntu Pro libimage-magick-q16-perl 8:7.1.2.18+dfsg1-1ubuntu0.1~esm2 Available with Ubuntu Pro libimage-magick-q16hdri-perl 8:7.1.2.18+dfsg1-1ubuntu0.1~esm2 Available with Ubuntu Pro libmagick++-7-headers 8:7.1.2.18+dfsg1-1ubuntu0.1~esm2 Available with Ubuntu Pro libmagick++-7.q16-5 8:7.1.2.18+dfsg1-1ubuntu0.1~esm2 Available with Ubuntu Pro libmagick++-7.q16-dev 8:7.1.2.18+dfsg1-1ubuntu0.1~esm2 Available with Ubuntu Pro libmagick++-7.q16hdri-5 8:7.1.2.18+dfsg1-1ubuntu0.1~esm2 Available with Ubuntu Pro libmagick++-7.q16hdri-dev 8:7.1.2.18+dfsg1-1ubuntu0.1~esm2 Available with Ubuntu Pro libmagick++-dev 8:7.1.2.18+dfsg1-1ubuntu0.1~esm2 Available with Ubuntu Pro libmagickcore-7-arch-config 8:7.1.2.18+dfsg1-1ubuntu0.1~esm2 Available with Ubuntu Pro libmagickcore-7-headers 8:7.1.2.18+dfsg1-1ubuntu0.1~esm2 Available with Ubuntu Pro libmagickcore-7.q16-10 8:7.1.2.18+dfsg1-1ubuntu0.1~esm2 Available with Ubuntu Pro libmagickcore-7.q16-10-extra 8:7.1.2.18+dfsg1-1ubuntu0.1~esm2 Available with Ubuntu Pro libmagickcore-7.q16-dev 8:7.1.2.18+dfsg1-1ubuntu0.1~esm2 Available with Ubuntu Pro libmagickcore-7.q16hdri-10 8:7.1.2.18+dfsg1-1ubuntu0.1~esm2 Available with Ubuntu Pro libmagickcore-7.q16hdri-10-extra 8:7.1.2.18+dfsg1-1ubuntu0.1~esm2 Available with Ubuntu Pro libmagickcore-7.q16hdri-dev 8:7.1.2.18+dfsg1-1ubuntu0.1~esm2 Available with Ubuntu Pro libmagickcore-dev 8:7.1.2.18+dfsg1-1ubuntu0.1~esm2 Available with Ubuntu Pro libmagickwand-7-headers 8:7.1.2.18+dfsg1-1ubuntu0.1~esm2 Available with Ubuntu Pro libmagickwand-7.q16-10 8:7.1.2.18+dfsg1-1ubuntu0.1~esm2 Available with Ubuntu Pro libmagickwand-7.q16-dev 8:7.1.2.18+dfsg1-1ubuntu0.1~esm2 Available with Ubuntu Pro libmagickwand-7.q16hdri-10 8:7.1.2.18+dfsg1-1ubuntu0.1~esm2 Available with Ubuntu Pro libmagickwand-7.q16hdri-dev 8:7.1.2.18+dfsg1-1ubuntu0.1~esm2 Available with Ubuntu Pro libmagickwand-dev 8:7.1.2.18+dfsg1-1ubuntu0.1~esm2 Available with Ubuntu Pro perlmagick 8:7.1.2.18+dfsg1-1ubuntu0.1~esm2 Available with Ubuntu Pro Ubuntu 22.04 LTS imagemagick 8:6.9.11.60+dfsg-1.3ubuntu0.22.04.5+esm14 Available with Ubuntu Pro imagemagick-6-common 8:6.9.11.60+dfsg-1.3ubuntu0.22.04.5+esm14 Available with Ubuntu Pro imagemagick-6-doc 8:6.9.11.60+dfsg-1.3ubuntu0.22.04.5+esm14 Available with Ubuntu Pro imagemagick-6.q16 8:6.9.11.60+dfsg-1.3ubuntu0.22.04.5+esm14 Available with Ubuntu Pro imagemagick-6.q16hdri 8:6.9.11.60+dfsg-1.3ubuntu0.22.04.5+esm14 Available with Ubuntu Pro imagemagick-common 8:6.9.11.60+dfsg-1.3ubuntu0.22.04.5+esm14 Available with Ubuntu Pro imagemagick-doc 8:6.9.11.60+dfsg-1.3ubuntu0.22.04.5+esm14 Available with Ubuntu Pro libimage-magick-perl 8:6.9.11.60+dfsg-1.3ubuntu0.22.04.5+esm14 Available with Ubuntu Pro libimage-magick-q16-perl 8:6.9.11.60+dfsg-1.3ubuntu0.22.04.5+esm14 Available with Ubuntu Pro libimage-magick-q16hdri-perl 8:6.9.11.60+dfsg-1.3ubuntu0.22.04.5+esm14 Available with Ubuntu Pro libmagick++-6-headers 8:6.9.11.60+dfsg-1.3ubuntu0.22.04.5+esm14 Available with Ubuntu Pro libmagick++-6.q16-8 8:6.9.11.60+dfsg-1.3ubuntu0.22.04.5+esm14 Available with Ubuntu Pro libmagick++-6.q16-dev 8:6.9.11.60+dfsg-1.3ubuntu0.22.04.5+esm14 Available with Ubuntu Pro libmagick++-6.q16hdri-8 8:6.9.11.60+dfsg-1.3ubuntu0.22.04.5+esm14 Available with Ubuntu Pro libmagick++-6.q16hdri-dev 8:6.9.11.60+dfsg-1.3ubuntu0.22.04.5+esm14 Available with Ubuntu Pro libmagick++-dev 8:6.9.11.60+dfsg-1.3ubuntu0.22.04.5+esm14 Available with Ubuntu Pro libmagickcore-6-arch-config 8:6.9.11.60+dfsg-1.3ubuntu0.22.04.5+esm14 Available with Ubuntu Pro libmagickcore-6-headers 8:6.9.11.60+dfsg-1.3ubuntu0.22.04.5+esm14 Available with Ubuntu Pro libmagickcore-6.q16-6 8:6.9.11.60+dfsg-1.3ubuntu0.22.04.5+esm14 Available with Ubuntu Pro libmagickcore-6.q16-6-extra 8:6.9.11.60+dfsg-1.3ubuntu0.22.04.5+esm14 Available with Ubuntu Pro libmagickcore-6.q16-dev 8:6.9.11.60+dfsg-1.3ubuntu0.22.04.5+esm14 Available with Ubuntu Pro libmagickcore-6.q16hdri-6 8:6.9.11.60+dfsg-1.3ubuntu0.22.04.5+esm14 Available with Ubuntu Pro libmagickcore-6.q16hdri-6-extra 8:6.9.11.60+dfsg-1.3ubuntu0.22.04.5+esm14 Available with Ubuntu Pro libmagickcore-6.q16hdri-dev 8:6.9.11.60+dfsg-1.3ubuntu0.22.04.5+esm14 Available with Ubuntu Pro libmagickcore-dev 8:6.9.11.60+dfsg-1.3ubuntu0.22.04.5+esm14 Available with Ubuntu Pro libmagickwand-6-headers 8:6.9.11.60+dfsg-1.3ubuntu0.22.04.5+esm14 Available with Ubuntu Pro libmagickwand-6.q16-6 8:6.9.11.60+dfsg-1.3ubuntu0.22.04.5+esm14 Available with Ubuntu Pro libmagickwand-6.q16-dev 8:6.9.11.60+dfsg-1.3ubuntu0.22.04.5+esm14 Available with Ubuntu Pro libmagickwand-6.q16hdri-6 8:6.9.11.60+dfsg-1.3ubuntu0.22.04.5+esm14 Available with Ubuntu Pro libmagickwand-6.q16hdri-dev 8:6.9.11.60+dfsg-1.3ubuntu0.22.04.5+esm14 Available with Ubuntu Pro libmagickwand-dev 8:6.9.11.60+dfsg-1.3ubuntu0.22.04.5+esm14 Available with Ubuntu Pro perlmagick 8:6.9.11.60+dfsg-1.3ubuntu0.22.04.5+esm14 Available with Ubuntu Pro Ubuntu 20.04 LTS imagemagick 8:6.9.10.23+dfsg-2.1ubuntu11.11+esm14 Available with Ubuntu Pro imagemagick-6-common 8:6.9.10.23+dfsg-2.1ubuntu11.11+esm14 Available with Ubuntu Pro imagemagick-6-doc 8:6.9.10.23+dfsg-2.1ubuntu11.11+esm14 Available with Ubuntu Pro imagemagick-6.q16 8:6.9.10.23+dfsg-2.1ubuntu11.11+esm14 Available with Ubuntu Pro imagemagick-6.q16hdri 8:6.9.10.23+dfsg-2.1ubuntu11.11+esm14 Available with Ubuntu Pro imagemagick-common 8:6.9.10.23+dfsg-2.1ubuntu11.11+esm14 Available with Ubuntu Pro imagemagick-doc 8:6.9.10.23+dfsg-2.1ubuntu11.11+esm14 Available with Ubuntu Pro libimage-magick-perl 8:6.9.10.23+dfsg-2.1ubuntu11.11+esm14 Available with Ubuntu Pro libimage-magick-q16-perl 8:6.9.10.23+dfsg-2.1ubuntu11.11+esm14 Available with Ubuntu Pro libimage-magick-q16hdri-perl 8:6.9.10.23+dfsg-2.1ubuntu11.11+esm14 Available with Ubuntu Pro libmagick++-6-headers 8:6.9.10.23+dfsg-2.1ubuntu11.11+esm14 Available with Ubuntu Pro libmagick++-6.q16-8 8:6.9.10.23+dfsg-2.1ubuntu11.11+esm14 Available with Ubuntu Pro libmagick++-6.q16-dev 8:6.9.10.23+dfsg-2.1ubuntu11.11+esm14 Available with Ubuntu Pro libmagick++-6.q16hdri-8 8:6.9.10.23+dfsg-2.1ubuntu11.11+esm14 Available with Ubuntu Pro libmagick++-6.q16hdri-dev 8:6.9.10.23+dfsg-2.1ubuntu11.11+esm14 Available with Ubuntu Pro libmagick++-dev 8:6.9.10.23+dfsg-2.1ubuntu11.11+esm14 Available with Ubuntu Pro libmagickcore-6-arch-config 8:6.9.10.23+dfsg-2.1ubuntu11.11+esm14 Available with Ubuntu Pro libmagickcore-6-headers 8:6.9.10.23+dfsg-2.1ubuntu11.11+esm14 Available with Ubuntu Pro libmagickcore-6.q16-6 8:6.9.10.23+dfsg-2.1ubuntu11.11+esm14 Available with Ubuntu Pro libmagickcore-6.q16-6-extra 8:6.9.10.23+dfsg-2.1ubuntu11.11+esm14 Available with Ubuntu Pro libmagickcore-6.q16-dev 8:6.9.10.23+dfsg-2.1ubuntu11.11+esm14 Available with Ubuntu Pro libmagickcore-6.q16hdri-6 8:6.9.10.23+dfsg-2.1ubuntu11.11+esm14 Available with Ubuntu Pro libmagickcore-6.q16hdri-6-extra 8:6.9.10.23+dfsg-2.1ubuntu11.11+esm14 Available with Ubuntu Pro libmagickcore-6.q16hdri-dev 8:6.9.10.23+dfsg-2.1ubuntu11.11+esm14 Available with Ubuntu Pro libmagickcore-dev 8:6.9.10.23+dfsg-2.1ubuntu11.11+esm14 Available with Ubuntu Pro libmagickwand-6-headers 8:6.9.10.23+dfsg-2.1ubuntu11.11+esm14 Available with Ubuntu Pro libmagickwand-6.q16-6 8:6.9.10.23+dfsg-2.1ubuntu11.11+esm14 Available with Ubuntu Pro libmagickwand-6.q16-dev 8:6.9.10.23+dfsg-2.1ubuntu11.11+esm14 Available with Ubuntu Pro libmagickwand-6.q16hdri-6 8:6.9.10.23+dfsg-2.1ubuntu11.11+esm14 Available with Ubuntu Pro libmagickwand-6.q16hdri-dev 8:6.9.10.23+dfsg-2.1ubuntu11.11+esm14 Available with Ubuntu Pro libmagickwand-dev 8:6.9.10.23+dfsg-2.1ubuntu11.11+esm14 Available with Ubuntu Pro perlmagick 8:6.9.10.23+dfsg-2.1ubuntu11.11+esm14 Available with Ubuntu Pro Ubuntu 18.04 LTS imagemagick 8:6.9.7.4+dfsg-16ubuntu6.15+esm16 Available with Ubuntu Pro imagemagick-6-common 8:6.9.7.4+dfsg-16ubuntu6.15+esm16 Available with Ubuntu Pro imagemagick-6-doc 8:6.9.7.4+dfsg-16ubuntu6.15+esm16 Available with Ubuntu Pro imagemagick-6.q16 8:6.9.7.4+dfsg-16ubuntu6.15+esm16 Available with Ubuntu Pro imagemagick-6.q16hdri 8:6.9.7.4+dfsg-16ubuntu6.15+esm16 Available with Ubuntu Pro imagemagick-common 8:6.9.7.4+dfsg-16ubuntu6.15+esm16 Available with Ubuntu Pro imagemagick-doc 8:6.9.7.4+dfsg-16ubuntu6.15+esm16 Available with Ubuntu Pro libimage-magick-perl 8:6.9.7.4+dfsg-16ubuntu6.15+esm16 Available with Ubuntu Pro libimage-magick-q16-perl 8:6.9.7.4+dfsg-16ubuntu6.15+esm16 Available with Ubuntu Pro libimage-magick-q16hdri-perl 8:6.9.7.4+dfsg-16ubuntu6.15+esm16 Available with Ubuntu Pro libmagick++-6-headers 8:6.9.7.4+dfsg-16ubuntu6.15+esm16 Available with Ubuntu Pro libmagick++-6.q16-7 8:6.9.7.4+dfsg-16ubuntu6.15+esm16 Available with Ubuntu Pro libmagick++-6.q16-dev 8:6.9.7.4+dfsg-16ubuntu6.15+esm16 Available with Ubuntu Pro libmagick++-6.q16hdri-7 8:6.9.7.4+dfsg-16ubuntu6.15+esm16 Available with Ubuntu Pro libmagick++-6.q16hdri-dev 8:6.9.7.4+dfsg-16ubuntu6.15+esm16 Available with Ubuntu Pro libmagick++-dev 8:6.9.7.4+dfsg-16ubuntu6.15+esm16 Available with Ubuntu Pro libmagickcore-6-arch-config 8:6.9.7.4+dfsg-16ubuntu6.15+esm16 Available with Ubuntu Pro libmagickcore-6-headers 8:6.9.7.4+dfsg-16ubuntu6.15+esm16 Available with Ubuntu Pro libmagickcore-6.q16-3 8:6.9.7.4+dfsg-16ubuntu6.15+esm16 Available with Ubuntu Pro libmagickcore-6.q16-3-extra 8:6.9.7.4+dfsg-16ubuntu6.15+esm16 Available with Ubuntu Pro libmagickcore-6.q16-dev 8:6.9.7.4+dfsg-16ubuntu6.15+esm16 Available with Ubuntu Pro libmagickcore-6.q16hdri-3 8:6.9.7.4+dfsg-16ubuntu6.15+esm16 Available with Ubuntu Pro libmagickcore-6.q16hdri-3-extra 8:6.9.7.4+dfsg-16ubuntu6.15+esm16 Available with Ubuntu Pro libmagickcore-6.q16hdri-dev 8:6.9.7.4+dfsg-16ubuntu6.15+esm16 Available with Ubuntu Pro libmagickcore-dev 8:6.9.7.4+dfsg-16ubuntu6.15+esm16 Available with Ubuntu Pro libmagickwand-6-headers 8:6.9.7.4+dfsg-16ubuntu6.15+esm16 Available with Ubuntu Pro libmagickwand-6.q16-3 8:6.9.7.4+dfsg-16ubuntu6.15+esm16 Available with Ubuntu Pro libmagickwand-6.q16-dev 8:6.9.7.4+dfsg-16ubuntu6.15+esm16 Available with Ubuntu Pro libmagickwand-6.q16hdri-3 8:6.9.7.4+dfsg-16ubuntu6.15+esm16 Available with Ubuntu Pro libmagickwand-6.q16hdri-dev 8:6.9.7.4+dfsg-16ubuntu6.15+esm16 Available with Ubuntu Pro libmagickwand-dev 8:6.9.7.4+dfsg-16ubuntu6.15+esm16 Available with Ubuntu Pro perlmagick 8:6.9.7.4+dfsg-16ubuntu6.15+esm16 Available with Ubuntu Pro Ubuntu 16.04 LTS imagemagick 8:6.8.9.9-7ubuntu5.16+esm24 Available with Ubuntu Pro imagemagick-6.q16 8:6.8.9.9-7ubuntu5.16+esm24 Available with Ubuntu Pro imagemagick-common 8:6.8.9.9-7ubuntu5.16+esm24 Available with Ubuntu Pro imagemagick-doc 8:6.8.9.9-7ubuntu5.16+esm24 Available with Ubuntu Pro libimage-magick-perl 8:6.8.9.9-7ubuntu5.16+esm24 Available with Ubuntu Pro libimage-magick-q16-perl 8:6.8.9.9-7ubuntu5.16+esm24 Available with Ubuntu Pro libmagick++-6-headers 8:6.8.9.9-7ubuntu5.16+esm24 Available with Ubuntu Pro libmagick++-6.q16-5v5 8:6.8.9.9-7ubuntu5.16+esm24 Available with Ubuntu Pro libmagick++-6.q16-dev 8:6.8.9.9-7ubuntu5.16+esm24 Available with Ubuntu Pro libmagick++-dev 8:6.8.9.9-7ubuntu5.16+esm24 Available with Ubuntu Pro libmagickcore-6-arch-config 8:6.8.9.9-7ubuntu5.16+esm24 Available with Ubuntu Pro libmagickcore-6-headers 8:6.8.9.9-7ubuntu5.16+esm24 Available with Ubuntu Pro libmagickcore-6.q16-2 8:6.8.9.9-7ubuntu5.16+esm24 Available with Ubuntu Pro libmagickcore-6.q16-2-extra 8:6.8.9.9-7ubuntu5.16+esm24 Available with Ubuntu Pro libmagickcore-6.q16-dev 8:6.8.9.9-7ubuntu5.16+esm24 Available with Ubuntu Pro libmagickcore-dev 8:6.8.9.9-7ubuntu5.16+esm24 Available with Ubuntu Pro libmagickwand-6-headers 8:6.8.9.9-7ubuntu5.16+esm24 Available with Ubuntu Pro libmagickwand-6.q16-2 8:6.8.9.9-7ubuntu5.16+esm24 Available with Ubuntu Pro libmagickwand-6.q16-dev 8:6.8.9.9-7ubuntu5.16+esm24 Available with Ubuntu Pro libmagickwand-dev 8:6.8.9.9-7ubuntu5.16+esm24 Available with Ubuntu Pro perlmagick 8:6.8.9.9-7ubuntu5.16+esm24 Available with Ubuntu Pro Ubuntu 14.04 LTS imagemagick 8:6.7.7.10-6ubuntu3.13+esm25 Available with Ubuntu Pro imagemagick-common 8:6.7.7.10-6ubuntu3.13+esm25 Available with Ubuntu Pro imagemagick-doc 8:6.7.7.10-6ubuntu3.13+esm25 Available with Ubuntu Pro libmagick++-dev 8:6.7.7.10-6ubuntu3.13+esm25 Available with Ubuntu Pro libmagick++5 8:6.7.7.10-6ubuntu3.13+esm25 Available with Ubuntu Pro libmagickcore-dev 8:6.7.7.10-6ubuntu3.13+esm25 Available with Ubuntu Pro libmagickcore5 8:6.7.7.10-6ubuntu3.13+esm25 Available with Ubuntu Pro libmagickcore5-extra 8:6.7.7.10-6ubuntu3.13+esm25 Available with Ubuntu Pro libmagickwand-dev 8:6.7.7.10-6ubuntu3.13+esm25 Available with Ubuntu Pro libmagickwand5 8:6.7.7.10-6ubuntu3.13+esm25 Available with Ubuntu Pro perlmagick 8:6.7.7.10-6ubuntu3.13+esm25 Available with Ubuntu Pro In general, a standard system update will make all the necessary changes.

CVE-2026-56366, CVE-2026-56368, CVE-2026-56370, CVE-2026-56371,

CVE-2026-56373, CVE-2026-56378, CVE-2026-56379, CVE-2026-61465,

CVE-2026-61857, CVE-2026-61863, CVE-2026-61864, CVE-2026-61865,

CVE-2026-61866, CVE-2026-61870, CVE-2026-62946

Ubuntu Security Notice USN-8739-1

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