------------------------------------------------------------------------- Debian LTS Advisory DLA-3681-1 debian-lts@lists.debian.org https://www.debian.org/lts/security/ Tobias Frost December 03, 2023 https://wiki.debian.org/LTS ------------------------------------------------------------------------- Package : amanda Version : 1:3.5.1-2+deb10u2 CVE ID : CVE-2022-37703 CVE-2022-37705 CVE-2023-30577 Debian Bug : 1021017 1029829 1055253 Multiple vulnerabilties have been found in Amanda,a backup system designed to archive many computers on a network to a single large-capacity tape drive. The vulnerabilties potentially allows local privilege escalation from the backup user to root or leak information whether a directory exists in the filesystem. CVE-2022-37703 In Amanda 3.5.1, an information leak vulnerability was found in the calcsize SUID binary. An attacker can abuse this vulnerability to know if a directory exists or not anywhere in the fs. The binary will use `opendir()` as root directly without checking the path, letting the attacker provide an arbitrary path. CVE-2022-37705 A privilege escalation flaw was found in Amanda 3.5.1 in which the backup user can acquire root privileges. The vulnerable component is the runtar SUID program, which is a wrapper to run /usr/bin/tar with specific arguments that are controllable by the attacker. This program mishandles the arguments passed to tar binary. CVE-2023-30577 The SUID binary "runtar" can accept the possibly malicious GNU tar options if fed with some non-argument option starting with "--exclude" (say --exclude-vcs). The following option will be accepted as "good" and it could be an option passing some script/binary that would be executed with root permissions. For Debian 10 buster, these problems have been fixed in version 1:3.5.1-2+deb10u2. We recommend that you upgrade your amanda packages. For the detailed security status of amanda please refer to its security tracker page at: https://security-tracker.debian.org/tracker/amanda Further information about Debian LTS security advisories, how to apply these updates to your system and frequently asked questions can be found at: https://wiki.debian.org/LTS
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