- ------------------------------------------------------------------------- Debian LTS Advisory DLA-2672-1 [email protected] https://www.debian.org/lts/security/ Anton Gladky June 02, 2021 https://wiki.debian.org/LTS - ------------------------------------------------------------------------- Package : imagemagick Version : 8:6.9.7.4+dfsg-11+deb9u13 CVE ID : CVE-2020-27751 CVE-2021-20243 CVE-2021-20245 CVE-2021-20309 CVE-2021-20312 CVE-2021-20313 Multiple security issues have been discovered in imagemagick. CVE-2020-27751 A flaw was found in MagickCore/quantum-export.c. An attacker who submits a crafted file that is processed by ImageMagick could trigger undefined behavior in the form of values outside the range of type `unsigned long long` as well as a shift exponent that is too large for 64-bit type. This would most likely lead to an impact to application availability, but could potentially cause other problems related to undefined behavior. CVE-2021-20243 A flaw was found in MagickCore/resize.c. An attacker who submits a crafted file that is processed by ImageMagick could trigger undefined behavior in the form of math division by zero. CVE-2021-20245 A flaw was found in coders/webp.c. An attacker who submits a crafted file that is processed by ImageMagick could trigger undefined behavior in the form of math division by zero. CVE-2021-20309 A division by zero in WaveImage() of MagickCore/visual-effects.c may trigger undefined behavior via a crafted image file submitted to an application using ImageMagick. CVE-2021-20312 An integer overflow in WriteTHUMBNAILImage of coders/thumbnail.c may trigger undefined behavior via a crafted image file that is submitted by an attacker and processed by an application using ImageMagick. CVE-2021-20313 A potential cipher leak when the calculate signatures in TransformSignature is possible. For Debian 9 stretch, these problems have been fixed in version 8:6.9.7.4+dfsg-11+deb9u13. We recommend that you upgrade your imagemagick packages. For the detailed security status of imagemagick please refer to its security tracker page at: https://security-tracker.debian.org/tracker/imagemagick Further information about Debian LTS security advisories, how to apply these updates to your system and frequently asked questions can be found at: https://wiki.debian.org/LTS