CVE-2021-41072

NameCVE-2021-41072
Descriptionsquashfs_opendir in unsquash-2.c in Squashfs-Tools 4.5 allows Director ...
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-2789-1, DSA-4987-1, ELA-497-1
Debian Bugs994262

Vulnerable and fixed packages

The table below lists information on source packages.

Source PackageReleaseVersionStatus
squashfs-tools (PTS)jessie, jessie (lts)1:4.2+20130409-2+deb8u2fixed
stretch1:4.3-3+deb9u1vulnerable
stretch (security)1:4.3-3+deb9u3fixed
buster1:4.3-12+deb10u1vulnerable
buster (security)1:4.3-12+deb10u2fixed
bullseye1:4.4-2+deb11u1vulnerable
bullseye (security)1:4.4-2+deb11u2fixed
sid, bookworm1:4.5-3fixed

The information below is based on the following data on fixed versions.

PackageTypeReleaseFixed VersionUrgencyOriginDebian Bugs
squashfs-toolssourcejessie1:4.2+20130409-2+deb8u2ELA-497-1
squashfs-toolssourcestretch1:4.3-3+deb9u3DLA-2789-1
squashfs-toolssourcebuster1:4.3-12+deb10u2DSA-4987-1
squashfs-toolssourcebullseye1:4.4-2+deb11u2DSA-4987-1
squashfs-toolssource(unstable)1:4.5-3994262

Notes

Prerequisites:
https://github.com/plougher/squashfs-tools/commit/80b8441a37fcf8bf07dacf24d9d6c6459a0f6e36
https://github.com/plougher/squashfs-tools/commit/1993a4e7aeda04962bf26e84c15fba8b58837e10
https://github.com/plougher/squashfs-tools/commit/9938154174756ee48a94ea0b076397a2944b028d
Fixed by: https://github.com/plougher/squashfs-tools/commit/e0485802ec72996c20026da320650d8362f555bd
Followup fix: https://github.com/plougher/squashfs-tools/commit/19fcc9365dcdb2c22d232d42d11012940df64b7c
https://github.com/plougher/squashfs-tools/issues/72#issuecomment-913833405

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