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Submission: On July 01 via api from IN — Scanned from DE
Submission: On July 01 via api from IN — Scanned from DE
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CVE-2021-4034 NameCVE-2021-4034DescriptionA local privilege escalation vulnerability was found on polkit's pkexec utility. The pkexec application is a setuid tool designed to allow unprivileged users to run commands as privileged users according predefined policies. The current version of pkexec doesn't handle the calling parameters count correctly and ends trying to execute environment variables as commands. An attacker can leverage this by crafting environment variables in such a way it'll induce pkexec to execute arbitrary code. When successfully executed the attack can cause a local privilege escalation given unprivileged users administrative rights on the target machine.SourceCVE (at NVD; CERT, LWN, oss-sec, fulldisc, bugtraq, EDB, Metasploit, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, Mageia, GitHub code/issues, web search, more)ReferencesDLA-2899-1, DSA-5059-1 VULNERABLE AND FIXED PACKAGES The table below lists information on source packages. Source PackageReleaseVersionStatuspolicykit-1 (PTS)stretch0.105-18+deb9u1vulnerablestretch (security)0.105-18+deb9u2fixedbuster, buster (security)0.105-25+deb10u1fixedbullseye, bullseye (security)0.105-31+deb11u1fixedbookworm, sid0.105-33fixed The information below is based on the following data on fixed versions. PackageTypeReleaseFixed VersionUrgencyOriginDebian Bugspolicykit-1sourcestretch0.105-18+deb9u2DLA-2899-1policykit-1sourcebuster0.105-25+deb10u1DSA-5059-1policykit-1sourcebullseye0.105-31+deb11u1DSA-5059-1policykit-1source(unstable)0.105-31.1 NOTES https://www.qualys.com/2022/01/25/cve-2021-4034/pwnkit.txt https://gitlab.freedesktop.org/polkit/polkit/-/commit/a2bf5c9c83b6ae46cbd5c779d3055bff81ded683 https://www.openwall.com/lists/oss-security/2022/01/25/11 -------------------------------------------------------------------------------- Search for package or bug name: Reporting problems Home - Debian Security - Source (Git)