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Huawei EulerOS: Security Advisory for squashfs-tools (EulerOS-SA-2021-2854)
Information
Severity
Severity
Family
Family
CVSSv2 Base
CVSSv2 Base
CVSSv2 Vector
CVSSv2 Vector
Solution Type
Solution Type
Created
Created
Modified
Modified
Summary
The remote host is missing an update for the Huawei EulerOS 'squashfs-tools' package(s) announced via the EulerOS-SA-2021-2854 advisory.
Insight
Insight
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-2021-40153)
Affected Software
Affected Software
'squashfs-tools' package(s) on Huawei EulerOS Virtualization for ARM 64 3.0.2.0.
Detection Method
Detection Method
Checks if a vulnerable package version is present on the target host.
Solution
Solution
Please install the updated package(s).