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Huawei EulerOS: Security Advisory for chrony (EulerOS-SA-2021-1429)

Information

Severity

Severity

Low

Family

Family

Huawei EulerOS Local Security Checks

CVSSv2 Base

CVSSv2 Base

3.6

CVSSv2 Vector

CVSSv2 Vector

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

Solution Type

Solution Type

Vendor Patch

Created

Created

3 years ago

Modified

Modified

3 years ago

Summary

The remote host is missing an update for the Huawei EulerOS 'chrony' package(s) announced via the EulerOS-SA-2021-1429 advisory.

Insight

Insight

A flaw was found in chrony versions before 3.5.1 when creating the PID file under the /var/run/chrony folder. The file is created during chronyd startup while still running as the root user, and when it's opened for writing, chronyd does not check for an existing symbolic link with the same file name. This flaw allows an attacker with privileged access to create a symlink with the default PID file name pointing to any destination file in the system, resulting in data loss and a denial of service due to the path traversal.(CVE-2020-14367)

Affected Software

Affected Software

'chrony' package(s) on Huawei EulerOS Virtualization 3.0.2.6.

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)