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CVE-2021-40153

HIGH

8.1

Description

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.

CVE Details

CVSS v3.1 Score8.1

SeverityHIGH

CVSS VectorCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:H

Attack VectorNETWORK

ComplexityLOW

Privileges RequiredNONE

User InteractionREQUIRED

Published8/27/2021

Last Modified11/21/2024

Sourcenvd

Honeypot Sightings0

Affected Products

debian:debian_linuxfedoraproject:fedoraredhat:enterprise_linuxsquashfs-tools_project:squashfs-tools

Weaknesses (CWE)

CWE-22

References

https://bugs.launchpad.net/ubuntu/+source/squashfs-tools/+bug/1941790(cve@mitre.org)

https://github.com/plougher/squashfs-tools/commit/79b5a555058eef4e1e7ff220c344d39f8cd09646(cve@mitre.org)

https://github.com/plougher/squashfs-tools/issues/72(cve@mitre.org)

https://lists.debian.org/debian-lts-announce/2021/08/msg00030.html(cve@mitre.org)

https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/GSMRKVJMJFX3MB7D3PXJSYY3TLZROE5S/(cve@mitre.org)

https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/RAOZ4BKWAC4Y3U2K5MMW3S77HWWXHQDL/(cve@mitre.org)

https://security.gentoo.org/glsa/202305-29(cve@mitre.org)

https://www.debian.org/security/2021/dsa-4967(cve@mitre.org)

https://bugs.launchpad.net/ubuntu/+source/squashfs-tools/+bug/1941790(af854a3a-2127-422b-91ae-364da2661108)

https://github.com/plougher/squashfs-tools/commit/79b5a555058eef4e1e7ff220c344d39f8cd09646(af854a3a-2127-422b-91ae-364da2661108)

https://github.com/plougher/squashfs-tools/issues/72(af854a3a-2127-422b-91ae-364da2661108)

https://lists.debian.org/debian-lts-announce/2021/08/msg00030.html(af854a3a-2127-422b-91ae-364da2661108)

https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/GSMRKVJMJFX3MB7D3PXJSYY3TLZROE5S/(af854a3a-2127-422b-91ae-364da2661108)

https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/RAOZ4BKWAC4Y3U2K5MMW3S77HWWXHQDL/(af854a3a-2127-422b-91ae-364da2661108)

https://security.gentoo.org/glsa/202305-29(af854a3a-2127-422b-91ae-364da2661108)

https://www.debian.org/security/2021/dsa-4967(af854a3a-2127-422b-91ae-364da2661108)

IOC Correlations

No correlations recorded

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