Important: git security update

Topic

An update for git is now available for Red Hat Enterprise Linux 9.

Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section.

Description

Git is a distributed revision control system with a decentralized architecture. As opposed to centralized version control systems with a client-server model, Git ensures that each working copy of a Git repository is an exact copy with complete revision history. This not only allows the user to work on and contribute to projects without the need to have permission to push the changes to their official repositories, but also makes it possible for the user to work with no network connection.

Security Fix(es):

• git: gitattributes parsing integer overflow (CVE-2022-23521)
• git: Heap overflow in `git archive`, `git log --format` leading to RCE (CVE-2022-41903)

For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.

Solution

For details on how to apply this update, which includes the changes described in this advisory, refer to:

https://access.redhat.com/articles/11258

Affected Products

• Red Hat Enterprise Linux for x86_64 9 x86_64
• Red Hat Enterprise Linux for IBM z Systems 9 s390x
• Red Hat Enterprise Linux for Power, little endian 9 ppc64le
• Red Hat Enterprise Linux for ARM 64 9 aarch64

Fixes

• BZ - 2162055 - CVE-2022-23521 git: gitattributes parsing integer overflow
• BZ - 2162056 - CVE-2022-41903 git: Heap overflow in `git archive`, `git log --format` leading to RCE

CVEs

• CVE-2022-23521
• CVE-2022-41903

References

• https://access.redhat.com/security/updates/classification/#important