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Huawei EulerOS: Security Advisory for python-jinja2 (EulerOS-SA-2021-2877)

Information

Severity

Severity

Medium

Family

Family

Huawei EulerOS Local Security Checks

CVSSv2 Base

CVSSv2 Base

5.0

CVSSv2 Vector

CVSSv2 Vector

AV:N/AC:L/Au:N/C:N/I:N/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 'python-jinja2' package(s) announced via the EulerOS-SA-2021-2877 advisory.

Insight

Insight

This affects the package jinja2 from 0.0.0 and before 2.11.3. The ReDoS vulnerability is mainly due to the `_punctuation_re regex` operator and its use of multiple wildcards. The last wildcard is the most exploitable as it searches for trailing punctuation. This issue can be mitigated by Markdown to format user content instead of the urlize filter, or by implementing request timeouts and limiting process memory.(CVE-2020-28493)

Affected Software

Affected Software

'python-jinja2' 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)