Arch Linux Security Advisory ASA-202104-1 ========================================= Severity: Critical Date : 2021-04-29 CVE-ID : CVE-2021-22205 CVE-2021-28965 Package : gitlab Type : multiple issues Remote : Yes Link : https://security.archlinux.org/AVG-1822 Summary ======= The package gitlab before version 13.10.3-1 is vulnerable to multiple issues including arbitrary code execution and incorrect calculation. Resolution ========== Upgrade to 13.10.3-1. # pacman -Syu "gitlab>=13.10.3-1" The problems have been fixed upstream in version 13.10.3. Workaround ========== None. Description =========== - CVE-2021-22205 (arbitrary code execution) An issue has been discovered in GitLab CE/EE affecting all versions starting from 11.9. GitLab was not properly validating image files that is passed to a file parser which resulted in a remote command execution. The issue is fixed in GitLab versions 13.10.3, 13.9.6 and 13.8.8. - CVE-2021-28965 (incorrect calculation) When parsing and serializing a crafted XML document, the REXML gem (including the one bundled with Ruby) can create a wrong XML document whose structure is different from the original one. The impact of this issue highly depends on context, but it may lead to a vulnerability in some programs that are using REXML. The issue is fixed in version 3.2.5 of the REXML gem. Impact ====== An attacker can crash or execute arbitrary code on the affected server by providing a maliciously crafted XML or image file. References ========== https://about.gitlab.com/releases/2021/04/14/security-release-gitlab-13-10-3... https://about.gitlab.com/releases/2021/04/14/security-release-gitlab-13-10-3... https://gitlab.com/gitlab-org/gitlab/-/issues/327121 https://hackerone.com/reports/1154542 https://www.ruby-lang.org/en/news/2021/04/05/xml-round-trip-vulnerability-in... https://hackerone.com/reports/1104077 https://github.com/ruby/rexml/commit/a659c63e37414506dfb0d4655e031bb7a2e73fc... https://github.com/ruby/rexml/commit/2fe62e29094d95921d7e19abbd2e26b23d78dc5... https://github.com/ruby/rexml/commit/6a250d2cd1194c2be72becbdd9c3e770aa16e75... https://github.com/ruby/rexml/commit/f7bab8937513b1403cea5aff874cbf32fd5e855... https://github.com/ruby/rexml/commit/f9d88e4948b4a43294c25dc0edb16815bd9d861... https://github.com/ruby/rexml/commit/9b311e59ae05749e082eb6bbefa1cb620d1a786... https://github.com/ruby/rexml/commit/3c137eb119550874b2b3e27d12b733ca6703337... https://security.archlinux.org/CVE-2021-22205 https://security.archlinux.org/CVE-2021-28965