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Huawei EulerOS: Security Advisory for git (EulerOS-SA-2021-1923)

Information

Severity

Severity

Medium

Family

Family

Huawei EulerOS Local Security Checks

CVSSv2 Base

CVSSv2 Base

5.1

CVSSv2 Vector

CVSSv2 Vector

AV:N/AC:H/Au:N/C:P/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 'git' package(s) announced via the EulerOS-SA-2021-1923 advisory.

Insight

Insight

Git is an open-source distributed revision control system. In affected versions of Git a specially crafted repository that contains symbolic links as well as files using a clean/smudge filter such as Git LFS, may cause just-checked out script to be executed while cloning onto a case-insensitive file system such as NTFS, HFS+ or APFS (i.e. the default file systems on Windows and macOS). Note that clean/smudge filters have to be configured for that. Git for Windows configures Git LFS by default, and is therefore vulnerable. The problem has been patched in the versions published on Tuesday, March 9th, 2021. As a workaound, if symbolic link support is disabled in Git (e.g. via `git config --global core.symlinks false`), the described attack won't work. Likewise, if no clean/smudge filters such as Git LFS are configured globally (i.e. _before_ cloning), the attack is foiled. As always, it is best to avoid cloning repositories from untrusted sources. The earliest impacted version is 2.14.2.(CVE-2021-21300)

Affected Software

Affected Software

'git' package(s) on Huawei EulerOS V2.0SP9(x86_64).

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)