CVE-2020-27760
imagemagick: In `GammaImage()` of /MagickCore/enhance.c, depending on the `gamma` value, it's possible to trigger a divide-by-zero...
CVE-2020-27760 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.
Routine
CVSS
n/a
Low
Exploitation
None reported
No vendor assessment
CISA KEV
Not listed
Not in the Known Exploited Vulnerabilities catalog
EPSS
0.0143
73rd percentile
In `GammaImage()` of /MagickCore/enhance.c, depending on the `gamma` value, it's possible to trigger a divide-by-zero condition when a crafted input file is processed by ImageMagick. This could lead to an impact to application availability. The patch uses the `PerceptibleReciprocal()` to prevent the divide-by-zero from occurring. This flaw affects ImageMagick versions prior to ImageMagick 7.0.8-68.
Where it's fixed
| 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 | May 14, 2021 |
| 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 | May 14, 2021 |
| 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 | May 14, 2021 |
| 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 | May 14, 2021 |
| 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 | May 14, 2021 |
| 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 | May 14, 2021 |
| 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 | May 14, 2021 |
| 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 | May 14, 2021 |
| 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 | May 14, 2021 |
| 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 | May 14, 2021 |
| 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 | May 14, 2021 |
| 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 | May 14, 2021 |
| 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 | May 14, 2021 |
| 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 | May 14, 2021 |
| 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 | May 14, 2021 |
| 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 | May 14, 2021 |
| 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 | May 14, 2021 |
| 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 | May 14, 2021 |
| 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 | May 14, 2021 |
| 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 | May 14, 2021 |
| 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 | May 14, 2021 |
| 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 | May 14, 2021 |
| 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 | May 14, 2021 |
| 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 | May 14, 2021 |
| 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 | May 14, 2021 |
| 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 | May 14, 2021 |
| 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 | May 14, 2021 |
| 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 | May 14, 2021 |
| 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 | May 14, 2021 |
| 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 | May 14, 2021 |
| 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 | May 14, 2021 |
| 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 | May 14, 2021 |
| 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 | May 14, 2021 |
| 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 | May 14, 2021 |
| 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 | May 14, 2021 |
| 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 | May 14, 2021 |
| 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 | May 14, 2021 |
| 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 | May 14, 2021 |
| 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 | May 14, 2021 |
| 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 | May 14, 2021 |
| perlmagick · Ubuntu 18.04.6 LTS (bionic) | 8:6.9.7.4+dfsg-16ubuntu6.11 | perlmagick 8:6.9.7.4+dfsg-16ubuntu6.11 | May 14, 2021 |
| 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 | May 14, 2021 |
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