CVE-2020-27770

imagemagick: Due to a missing check for 0 value of `replace_extent`, it is possible for offset `p` to overflow in SubstituteString...

CVE-2020-27770 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
0.0115
66th percentile

Due to a missing check for 0 value of `replace_extent`, it is possible for offset `p` to overflow in SubstituteString(), causing potential impact to application availability. This could be triggered by a crafted input file that is processed by ImageMagick. This flaw affects ImageMagick versions prior to 7.0.8-68.

Where it's fixed

ProductFixed inFixReleased
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