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-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256 =========================================================================== AUSCERT External Security Bulletin Redistribution ESB-2021.4025 USN-5158-1: ImageMagick vulnerabilities 30 November 2021 =========================================================================== AusCERT Security Bulletin Summary --------------------------------- Product: ImageMagick Publisher: Ubuntu Operating System: Ubuntu Impact/Access: Denial of Service -- Remote/Unauthenticated Access Confidential Data -- Remote/Unauthenticated Resolution: Patch/Upgrade CVE Names: CVE-2021-20313 CVE-2021-20312 CVE-2021-20309 CVE-2021-20246 CVE-2021-20244 Reference: ESB-2021.1948 ESB-2021.1350 ESB-2021.1009 ESB-2021.0719 Original Bulletin: https://ubuntu.com/security/notices/USN-5158-1 - --------------------------BEGIN INCLUDED TEXT-------------------- USN-5158-1: ImageMagick vulnerabilities 29 November 2021 Several security issues were fixed in ImageMagick. Releases o Ubuntu 18.04 LTS o Ubuntu 16.04 ESM o Ubuntu 14.04 ESM Packages o imagemagick - Image manipulation programs and library Details It was discovered that ImageMagick incorrectly handled certain values when processing visual effects based image files. By tricking a user into opening a specially crafted image file, an attacker could crash the application causing a denial of service. ( CVE-2021-20244 ) It was discovered that ImageMagick incorrectly handled certain values when performing resampling operations. By tricking a user into opening a specially crafted image file, an attacker could crash the application causing a denial of service. ( CVE-2021-20246 ) It was discovered that ImageMagick incorrectly handled certain values when processing visual effects based image files. By tricking a user into opening a specially crafted image file, an attacker could crash the application causing a denial of service ( CVE-2021-20309 ) It was discovered that ImageMagick incorrectly handled certain values when processing thumbnail image data. By tricking a user into opening a specially crafted image file, an attacker could crash the application causing a denial of service. ( CVE-2021-20312 ) It was discovered that ImageMagick incorrectly handled memory cleanup when performing certain cryptographic operations. Under certain conditions sensitive cryptographic information could be disclosed. ( CVE-2021-20313 ) Update instructions The problem can be corrected by updating your system to the following package versions: Ubuntu 18.04 o libmagick++-6.q16-7 - 8:6.9.7.4+dfsg-16ubuntu6.12 Ubuntu 16.04 o libmagick++-6.q16-5v5 - 8:6.8.9.9-7ubuntu5.16+esm1 Available with UA Infra or UA Desktop Ubuntu 14.04 o libmagick++5 - 8:6.7.7.10-6ubuntu3.13+esm1 Available with UA Infra or UA Desktop In general, a standard system update will make all the necessary changes. References o CVE-2021-20244 o CVE-2021-20246 o CVE-2021-20309 o CVE-2021-20312 o CVE-2021-20313 - --------------------------END INCLUDED TEXT-------------------- You have received this e-mail bulletin as a result of your organisation's registration with AusCERT. The mailing list you are subscribed to is maintained within your organisation, so if you do not wish to continue receiving these bulletins you should contact your local IT manager. 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