# CVE-2020-27761: imagemagick: WritePALMImage() in /coders/palm.c used size_t casts in several areas of a calculation which could lead to values out...

CVE-2020-27761 is fixed in 29 products on 1 platform, first by imagemagick 8:6.9.7.4+dfsg-16ubuntu6.11, released May 14, 2021. It is not reported as exploited. Patch Radar priority: Routine.

- Web page: https://patchblox.com/security/cve/CVE-2020-27761
- Priority: Routine
- CVSS: n/a (Low)
- EPSS: 0.0109
- CISA KEV: not listed
- Exploited (vendor report): no
- Publicly disclosed: no
- Published: Dec 3, 2020

## Description

WritePALMImage() in /coders/palm.c used size_t casts in several areas of a calculation which could lead to values outside the range of representable type `unsigned long` undefined behavior when a crafted input file was processed by ImageMagick. The patch casts to `ssize_t` instead to avoid this issue. Red Hat Product Security marked the Severity as Low because although it could potentially lead to an impact to application availability, no specific impact was shown in this case. This flaw affects ImageMagick versions prior to ImageMagick 7.0.9-0.

## Where it's fixed

| Platform | Product | Fixed in | Fix | Released |
|---|---|---|---|---|
| Linux | imagemagick Ubuntu 18.04.6 LTS (bionic) | 8:6.9.7.4+dfsg-16ubuntu6.11 | [imagemagick 8:6.9.7.4+dfsg-16ubuntu6.11](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-imagemagick-8-6.9.7.4-dfsg-16ubuntu6.11.md) | May 14, 2021 |
| Linux | imagemagick Ubuntu 20.04 LTS (focal) | 8:6.9.10.23+dfsg-2.1ubuntu11.4 | [imagemagick 8:6.9.10.23+dfsg-2.1ubuntu11.4](https://patchblox.com/security/data/fix/linux/ubuntu-focal-imagemagick-8-6.9.10.23-dfsg-2.1ubuntu11.4.md) | May 14, 2021 |
| Linux | imagemagick-6-common Ubuntu 18.04.6 LTS (bionic) | 8:6.9.7.4+dfsg-16ubuntu6.11 | [imagemagick-6-common 8:6.9.7.4+dfsg-16ubuntu6.11](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-imagemagick-6-common-8-6.9.7.4-dfsg-16ubuntu6.11.md) | May 14, 2021 |
| Linux | imagemagick-6-common Ubuntu 20.04 LTS (focal) | 8:6.9.10.23+dfsg-2.1ubuntu11.4 | [imagemagick-6-common 8:6.9.10.23+dfsg-2.1ubuntu11.4](https://patchblox.com/security/data/fix/linux/ubuntu-focal-imagemagick-6-common-8-6.9.10.23-dfsg-2.1ubuntu11.4.md) | May 14, 2021 |
| Linux | imagemagick-6.q16 Ubuntu 18.04.6 LTS (bionic) | 8:6.9.7.4+dfsg-16ubuntu6.11 | [imagemagick-6.q16 8:6.9.7.4+dfsg-16ubuntu6.11](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-imagemagick-6.q16-8-6.9.7.4-dfsg-16ubuntu6.11.md) | May 14, 2021 |
| Linux | imagemagick-6.q16 Ubuntu 20.04 LTS (focal) | 8:6.9.10.23+dfsg-2.1ubuntu11.4 | [imagemagick-6.q16 8:6.9.10.23+dfsg-2.1ubuntu11.4](https://patchblox.com/security/data/fix/linux/ubuntu-focal-imagemagick-6.q16-8-6.9.10.23-dfsg-2.1ubuntu11.4.md) | May 14, 2021 |
| Linux | imagemagick-6.q16hdri Ubuntu 18.04.6 LTS (bionic) | 8:6.9.7.4+dfsg-16ubuntu6.11 | [imagemagick-6.q16hdri 8:6.9.7.4+dfsg-16ubuntu6.11](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-imagemagick-6.q16hdri-8-6.9.7.4-dfsg-16ubuntu6.11.md) | May 14, 2021 |
| Linux | imagemagick-6.q16hdri Ubuntu 20.04 LTS (focal) | 8:6.9.10.23+dfsg-2.1ubuntu11.4 | [imagemagick-6.q16hdri 8:6.9.10.23+dfsg-2.1ubuntu11.4](https://patchblox.com/security/data/fix/linux/ubuntu-focal-imagemagick-6.q16hdri-8-6.9.10.23-dfsg-2.1ubuntu11.4.md) | May 14, 2021 |
| Linux | imagemagick-common Ubuntu 18.04.6 LTS (bionic) | 8:6.9.7.4+dfsg-16ubuntu6.11 | [imagemagick-common 8:6.9.7.4+dfsg-16ubuntu6.11](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-imagemagick-common-8-6.9.7.4-dfsg-16ubuntu6.11.md) | May 14, 2021 |
| Linux | imagemagick-common Ubuntu 20.04 LTS (focal) | 8:6.9.10.23+dfsg-2.1ubuntu11.4 | [imagemagick-common 8:6.9.10.23+dfsg-2.1ubuntu11.4](https://patchblox.com/security/data/fix/linux/ubuntu-focal-imagemagick-common-8-6.9.10.23-dfsg-2.1ubuntu11.4.md) | May 14, 2021 |
| Linux | libimage-magick-perl Ubuntu 18.04.6 LTS (bionic) | 8:6.9.7.4+dfsg-16ubuntu6.11 | [libimage-magick-perl 8:6.9.7.4+dfsg-16ubuntu6.11](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-libimage-magick-perl-8-6.9.7.4-dfsg-16ubuntu6.11.md) | May 14, 2021 |
| Linux | libimage-magick-perl Ubuntu 20.04 LTS (focal) | 8:6.9.10.23+dfsg-2.1ubuntu11.4 | [libimage-magick-perl 8:6.9.10.23+dfsg-2.1ubuntu11.4](https://patchblox.com/security/data/fix/linux/ubuntu-focal-libimage-magick-perl-8-6.9.10.23-dfsg-2.1ubuntu11.4.md) | May 14, 2021 |
| Linux | libimage-magick-q16-perl Ubuntu 18.04.6 LTS (bionic) | 8:6.9.7.4+dfsg-16ubuntu6.11 | [libimage-magick-q16-perl 8:6.9.7.4+dfsg-16ubuntu6.11](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-libimage-magick-q16-perl-8-6.9.7.4-dfsg-16ubuntu6.11.md) | May 14, 2021 |
| Linux | libimage-magick-q16-perl Ubuntu 20.04 LTS (focal) | 8:6.9.10.23+dfsg-2.1ubuntu11.4 | [libimage-magick-q16-perl 8:6.9.10.23+dfsg-2.1ubuntu11.4](https://patchblox.com/security/data/fix/linux/ubuntu-focal-libimage-magick-q16-perl-8-6.9.10.23-dfsg-2.1ubuntu11.4.md) | May 14, 2021 |
| Linux | libimage-magick-q16hdri-perl Ubuntu 18.04.6 LTS (bionic) | 8:6.9.7.4+dfsg-16ubuntu6.11 | [libimage-magick-q16hdri-perl 8:6.9.7.4+dfsg-16ubuntu6.11](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-libimage-magick-q16hdri-perl-8-6.9.7.4-dfsg-16ubuntu6.11.md) | May 14, 2021 |
| Linux | libimage-magick-q16hdri-perl Ubuntu 20.04 LTS (focal) | 8:6.9.10.23+dfsg-2.1ubuntu11.4 | [libimage-magick-q16hdri-perl 8:6.9.10.23+dfsg-2.1ubuntu11.4](https://patchblox.com/security/data/fix/linux/ubuntu-focal-libimage-magick-q16hdri-perl-8-6.9.10.23-dfsg-2.1ubuntu11.4.md) | May 14, 2021 |
| Linux | libmagick++-6-headers Ubuntu 18.04.6 LTS (bionic) | 8:6.9.7.4+dfsg-16ubuntu6.11 | [libmagick++-6-headers 8:6.9.7.4+dfsg-16ubuntu6.11](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-libmagick-6-headers-8-6.9.7.4-dfsg-16ubuntu6.11.md) | May 14, 2021 |
| Linux | libmagick++-6-headers Ubuntu 20.04 LTS (focal) | 8:6.9.10.23+dfsg-2.1ubuntu11.4 | [libmagick++-6-headers 8:6.9.10.23+dfsg-2.1ubuntu11.4](https://patchblox.com/security/data/fix/linux/ubuntu-focal-libmagick-6-headers-8-6.9.10.23-dfsg-2.1ubuntu11.4.md) | May 14, 2021 |
| Linux | libmagick++-6.q16-7 Ubuntu 18.04.6 LTS (bionic) | 8:6.9.7.4+dfsg-16ubuntu6.11 | [libmagick++-6.q16-7 8:6.9.7.4+dfsg-16ubuntu6.11](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-libmagick-6.q16-7-8-6.9.7.4-dfsg-16ubuntu6.11.md) | May 14, 2021 |
| Linux | libmagick++-6.q16-8 Ubuntu 20.04 LTS (focal) | 8:6.9.10.23+dfsg-2.1ubuntu11.4 | [libmagick++-6.q16-8 8:6.9.10.23+dfsg-2.1ubuntu11.4](https://patchblox.com/security/data/fix/linux/ubuntu-focal-libmagick-6.q16-8-8-6.9.10.23-dfsg-2.1ubuntu11.4.md) | May 14, 2021 |
| Linux | libmagick++-6.q16hdri-7 Ubuntu 18.04.6 LTS (bionic) | 8:6.9.7.4+dfsg-16ubuntu6.11 | [libmagick++-6.q16hdri-7 8:6.9.7.4+dfsg-16ubuntu6.11](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-libmagick-6.q16hdri-7-8-6.9.7.4-dfsg-16ubuntu6.11.md) | May 14, 2021 |
| Linux | libmagick++-6.q16hdri-8 Ubuntu 20.04 LTS (focal) | 8:6.9.10.23+dfsg-2.1ubuntu11.4 | [libmagick++-6.q16hdri-8 8:6.9.10.23+dfsg-2.1ubuntu11.4](https://patchblox.com/security/data/fix/linux/ubuntu-focal-libmagick-6.q16hdri-8-8-6.9.10.23-dfsg-2.1ubuntu11.4.md) | May 14, 2021 |
| Linux | libmagickcore-6-arch-config Ubuntu 18.04.6 LTS (bionic) | 8:6.9.7.4+dfsg-16ubuntu6.11 | [libmagickcore-6-arch-config 8:6.9.7.4+dfsg-16ubuntu6.11](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-libmagickcore-6-arch-config-8-6.9.7.4-dfsg-16ubuntu6.11.md) | May 14, 2021 |
| Linux | libmagickcore-6-arch-config Ubuntu 20.04 LTS (focal) | 8:6.9.10.23+dfsg-2.1ubuntu11.4 | [libmagickcore-6-arch-config 8:6.9.10.23+dfsg-2.1ubuntu11.4](https://patchblox.com/security/data/fix/linux/ubuntu-focal-libmagickcore-6-arch-config-8-6.9.10.23-dfsg-2.1ubuntu11.4.md) | May 14, 2021 |
| Linux | libmagickcore-6-headers Ubuntu 18.04.6 LTS (bionic) | 8:6.9.7.4+dfsg-16ubuntu6.11 | [libmagickcore-6-headers 8:6.9.7.4+dfsg-16ubuntu6.11](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-libmagickcore-6-headers-8-6.9.7.4-dfsg-16ubuntu6.11.md) | May 14, 2021 |
| Linux | libmagickcore-6-headers Ubuntu 20.04 LTS (focal) | 8:6.9.10.23+dfsg-2.1ubuntu11.4 | [libmagickcore-6-headers 8:6.9.10.23+dfsg-2.1ubuntu11.4](https://patchblox.com/security/data/fix/linux/ubuntu-focal-libmagickcore-6-headers-8-6.9.10.23-dfsg-2.1ubuntu11.4.md) | May 14, 2021 |
| Linux | libmagickcore-6.q16-3 Ubuntu 18.04.6 LTS (bionic) | 8:6.9.7.4+dfsg-16ubuntu6.11 | [libmagickcore-6.q16-3 8:6.9.7.4+dfsg-16ubuntu6.11](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-libmagickcore-6.q16-3-8-6.9.7.4-dfsg-16ubuntu6.11.md) | May 14, 2021 |
| Linux | libmagickcore-6.q16-3-extra Ubuntu 18.04.6 LTS (bionic) | 8:6.9.7.4+dfsg-16ubuntu6.11 | [libmagickcore-6.q16-3-extra 8:6.9.7.4+dfsg-16ubuntu6.11](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-libmagickcore-6.q16-3-extra-8-6.9.7.4-dfsg-16ubuntu6.11.md) | May 14, 2021 |
| Linux | libmagickcore-6.q16-6 Ubuntu 20.04 LTS (focal) | 8:6.9.10.23+dfsg-2.1ubuntu11.4 | [libmagickcore-6.q16-6 8:6.9.10.23+dfsg-2.1ubuntu11.4](https://patchblox.com/security/data/fix/linux/ubuntu-focal-libmagickcore-6.q16-6-8-6.9.10.23-dfsg-2.1ubuntu11.4.md) | May 14, 2021 |
| Linux | libmagickcore-6.q16-6-extra Ubuntu 20.04 LTS (focal) | 8:6.9.10.23+dfsg-2.1ubuntu11.4 | [libmagickcore-6.q16-6-extra 8:6.9.10.23+dfsg-2.1ubuntu11.4](https://patchblox.com/security/data/fix/linux/ubuntu-focal-libmagickcore-6.q16-6-extra-8-6.9.10.23-dfsg-2.1ubuntu11.4.md) | May 14, 2021 |
| Linux | libmagickcore-6.q16hdri-3 Ubuntu 18.04.6 LTS (bionic) | 8:6.9.7.4+dfsg-16ubuntu6.11 | [libmagickcore-6.q16hdri-3 8:6.9.7.4+dfsg-16ubuntu6.11](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-libmagickcore-6.q16hdri-3-8-6.9.7.4-dfsg-16ubuntu6.11.md) | May 14, 2021 |
| Linux | libmagickcore-6.q16hdri-3-extra Ubuntu 18.04.6 LTS (bionic) | 8:6.9.7.4+dfsg-16ubuntu6.11 | [libmagickcore-6.q16hdri-3-extra 8:6.9.7.4+dfsg-16ubuntu6.11](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-libmagickcore-6.q16hdri-3-extra-8-6.9.7.4-dfsg-16ubuntu6.11.md) | May 14, 2021 |
| Linux | libmagickcore-6.q16hdri-6 Ubuntu 20.04 LTS (focal) | 8:6.9.10.23+dfsg-2.1ubuntu11.4 | [libmagickcore-6.q16hdri-6 8:6.9.10.23+dfsg-2.1ubuntu11.4](https://patchblox.com/security/data/fix/linux/ubuntu-focal-libmagickcore-6.q16hdri-6-8-6.9.10.23-dfsg-2.1ubuntu11.4.md) | May 14, 2021 |
| Linux | libmagickcore-6.q16hdri-6-extra Ubuntu 20.04 LTS (focal) | 8:6.9.10.23+dfsg-2.1ubuntu11.4 | [libmagickcore-6.q16hdri-6-extra 8:6.9.10.23+dfsg-2.1ubuntu11.4](https://patchblox.com/security/data/fix/linux/ubuntu-focal-libmagickcore-6.q16hdri-6-extra-8-6.9.10.23-dfsg-2.1ubuntu11.4.md) | May 14, 2021 |
| Linux | libmagickwand-6-headers Ubuntu 18.04.6 LTS (bionic) | 8:6.9.7.4+dfsg-16ubuntu6.11 | [libmagickwand-6-headers 8:6.9.7.4+dfsg-16ubuntu6.11](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-libmagickwand-6-headers-8-6.9.7.4-dfsg-16ubuntu6.11.md) | May 14, 2021 |
| Linux | libmagickwand-6-headers Ubuntu 20.04 LTS (focal) | 8:6.9.10.23+dfsg-2.1ubuntu11.4 | [libmagickwand-6-headers 8:6.9.10.23+dfsg-2.1ubuntu11.4](https://patchblox.com/security/data/fix/linux/ubuntu-focal-libmagickwand-6-headers-8-6.9.10.23-dfsg-2.1ubuntu11.4.md) | May 14, 2021 |
| Linux | libmagickwand-6.q16-3 Ubuntu 18.04.6 LTS (bionic) | 8:6.9.7.4+dfsg-16ubuntu6.11 | [libmagickwand-6.q16-3 8:6.9.7.4+dfsg-16ubuntu6.11](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-libmagickwand-6.q16-3-8-6.9.7.4-dfsg-16ubuntu6.11.md) | May 14, 2021 |
| Linux | libmagickwand-6.q16-6 Ubuntu 20.04 LTS (focal) | 8:6.9.10.23+dfsg-2.1ubuntu11.4 | [libmagickwand-6.q16-6 8:6.9.10.23+dfsg-2.1ubuntu11.4](https://patchblox.com/security/data/fix/linux/ubuntu-focal-libmagickwand-6.q16-6-8-6.9.10.23-dfsg-2.1ubuntu11.4.md) | May 14, 2021 |
| Linux | libmagickwand-6.q16hdri-3 Ubuntu 18.04.6 LTS (bionic) | 8:6.9.7.4+dfsg-16ubuntu6.11 | [libmagickwand-6.q16hdri-3 8:6.9.7.4+dfsg-16ubuntu6.11](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-libmagickwand-6.q16hdri-3-8-6.9.7.4-dfsg-16ubuntu6.11.md) | May 14, 2021 |
| Linux | libmagickwand-6.q16hdri-6 Ubuntu 20.04 LTS (focal) | 8:6.9.10.23+dfsg-2.1ubuntu11.4 | [libmagickwand-6.q16hdri-6 8:6.9.10.23+dfsg-2.1ubuntu11.4](https://patchblox.com/security/data/fix/linux/ubuntu-focal-libmagickwand-6.q16hdri-6-8-6.9.10.23-dfsg-2.1ubuntu11.4.md) | May 14, 2021 |
| Linux | perlmagick Ubuntu 18.04.6 LTS (bionic) | 8:6.9.7.4+dfsg-16ubuntu6.11 | [perlmagick 8:6.9.7.4+dfsg-16ubuntu6.11](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-perlmagick-8-6.9.7.4-dfsg-16ubuntu6.11.md) | May 14, 2021 |
| Linux | perlmagick Ubuntu 20.04 LTS (focal) | 8:6.9.10.23+dfsg-2.1ubuntu11.4 | [perlmagick 8:6.9.10.23+dfsg-2.1ubuntu11.4](https://patchblox.com/security/data/fix/linux/ubuntu-focal-perlmagick-8-6.9.10.23-dfsg-2.1ubuntu11.4.md) | May 14, 2021 |

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