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Huawei EulerOS: Security Advisory for squashfs-tools (EulerOS-SA-2021-2854)

Information

Severity

Severity

Medium

Family

Family

Huawei EulerOS Local Security Checks

CVSSv2 Base

CVSSv2 Base

5.8

CVSSv2 Vector

CVSSv2 Vector

AV:N/AC:M/Au:N/C:N/I:P/A:P

Solution Type

Solution Type

Vendor Patch

Created

Created

2 years ago

Modified

Modified

2 years ago

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).

Common Vulnerabilities and Exposures (CVE)