RHSA-2024:4256 - Security Advisory

Topic

An update for less is now available for Red Hat Enterprise Linux 8.

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

The "less" utility is a text file browser that resembles "more", but allows users to move backwards in the file as well as forwards. Since "less" does not read the entire input file at startup, it also starts more quickly than ordinary text editors.

Security Fix(es):

• less: OS command injection (CVE-2024-32487)
• less: missing quoting of shell metacharacters in LESSCLOSE handling (CVE-2022-48624)

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 8 x86_64
• Red Hat Enterprise Linux for IBM z Systems 8 s390x
• Red Hat Enterprise Linux for Power, little endian 8 ppc64le
• Red Hat Enterprise Linux for ARM 64 8 aarch64

Fixes

• BZ - 2265081 - CVE-2022-48624 less: missing quoting of shell metacharacters in LESSCLOSE handling
• BZ - 2274980 - CVE-2024-32487 less: OS command injection

CVEs

• CVE-2022-48624
• CVE-2024-32487

References

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