CVE-2021-40153

squashfs_opendir in unsquash-1.c in Squashfs-Tools 4.5 stores the filename in the directory entry; this is then used by unsquashfs to create the new file during the unsquash. The filename is not validated for traversal outside of the destination directory, and thus allows writing to locations outside of the destination.

Link	Resource
https://bugs.launchpad.net/ubuntu/+source/squashfs-tools/+bug/1941790	Third Party Advisory
https://github.com/plougher/squashfs-tools/commit/79b5a555058eef4e1e7ff220c344d39f8cd09646	Patch Third Party Advisory
https://github.com/plougher/squashfs-tools/issues/72	Exploit Third Party Advisory
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/RAOZ4BKWAC4Y3U2K5MMW3S77HWWXHQDL/	Mailing List Third Party Advisory
https://lists.debian.org/debian-lts-announce/2021/08/msg00030.html	Mailing List Third Party Advisory
https://www.debian.org/security/2021/dsa-4967	Third Party Advisory
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/GSMRKVJMJFX3MB7D3PXJSYY3TLZROE5S/	Mailing List Third Party Advisory

Configuration 1

cpe:2.3:a:squashfs-tools_project:squashfs-tools:4.5:*:*:*:*:*:*:* cpe:2.3:o:fedoraproject:fedora:34:*:*:*:*:*:*:* cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:* cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:* cpe:2.3:o:redhat:enterprise_linux:7.0:*:*:*:*:*:*:* cpe:2.3:o:redhat:enterprise_linux:8.0:*:*:*:*:*:*:* cpe:2.3:o:fedoraproject:fedora:33:*:*:*:*:*:*:*

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Published : 2021-08-27 03:15

Updated : 2021-10-07 05:48

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NVD link : CVE-2021-40153

Mitre link : CVE-2021-40153

No products.

CWE-22