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Red Hat: RHSA-2023:2898-01 Moderate: Libtar Memory Leak Issues

red hat
Calendar Grey May 16, 2023
Dist Redhat Esm H88
Explore the newest Red Hat advisory related to libtar, focusing on memory leaks as well as out-of-bounds vulnerabilities, categorized with a moderate severity rating.
An update for libtar is now available for Red Hat Enterprise Linux 8

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

Summary

The libtar packages contain a C library for manipulating tar archives. The library supports both the strict POSIX tar format and many of the commonly used GNU extensions.
Security Fix(es):
* libtar: out-of-bounds read in gnu_longlink (CVE-2021-33643)
* libtar: out-of-bounds read in gnu_longname (CVE-2021-33644)
* libtar: memory leak found in th_read() function (CVE-2021-33645)
* libtar: memory leak found in th_read() function (CVE-2021-33646)
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.
Additional Changes:
For detailed information on changes in this release, see the Red Hat Enterprise Linux 8.8 Release Notes linked from the References section.

Topics%20covered

Topics Covered

security advisory moderate security issue Red Hat memory leak out-of-bounds libtar

References

https://access.redhat.com/security/cve/CVE-2021-33643 https://access.redhat.com/security/cve/CVE-2021-33644 https://access.redhat.com/security/cve/CVE-2021-33645 https://access.redhat.com/security/cve/CVE-2021-33646 https://access.redhat.com/security/updates/classification/#moderate https://access.redhat.com/documentation/en-us/red_hat_enterprise_linux/8/html/8.8_release_notes/index

Package List

Red Hat Enterprise Linux AppStream (v. 8):
Source: libtar-1.2.20-17.el8.src.rpm
aarch64: libtar-1.2.20-17.el8.aarch64.rpm libtar-debuginfo-1.2.20-17.el8.aarch64.rpm libtar-debugsource-1.2.20-17.el8.aarch64.rpm
ppc64le: libtar-1.2.20-17.el8.ppc64le.rpm libtar-debuginfo-1.2.20-17.el8.ppc64le.rpm libtar-debugsource-1.2.20-17.el8.ppc64le.rpm
s390x: libtar-1.2.20-17.el8.s390x.rpm libtar-debuginfo-1.2.20-17.el8.s390x.rpm libtar-debugsource-1.2.20-17.el8.s390x.rpm
x86_64: libtar-1.2.20-17.el8.i686.rpm libtar-1.2.20-17.el8.x86_64.rpm libtar-debuginfo-1.2.20-17.el8.i686.rpm libtar-debuginfo-1.2.20-17.el8.x86_64.rpm libtar-debugsource-1.2.20-17.el8.i686.rpm libtar-debugsource-1.2.20-17.el8.x86_64.rpm
These packages are GPG signed by Red Hat for security. Our key and details on how to verify the signature are available from https://access.redhat.com/security/team/key/


Advisory ID: RHSA-2023:2898-01
Product: Red Hat Enterprise Linux
Advisory URL: https://access.redhat.com/errata/RHSA-2023:2898
Issue date: 2023-05-16

Topic

An update for libtar is now available for Red Hat Enterprise Linux 8.Red Hat Product Security has rated this update as having a security impactof Moderate. A Common Vulnerability Scoring System (CVSS) base score, whichgives a detailed severity rating, is available for each vulnerability fromthe CVE link(s) in the References section.

Topics%20covered

Topics Covered

security advisory moderate security issue Red Hat memory leak out-of-bounds libtar

Relevant Releases Architectures

Red Hat Enterprise Linux AppStream (v. 8) - aarch64, ppc64le, s390x, x86_64

Bugs Fixed

2121289 - CVE-2021-33643 libtar: out-of-bounds read in gnu_longlink

2121292 - CVE-2021-33644 libtar: out-of-bounds read in gnu_longname

2121295 - CVE-2021-33645 libtar: memory leak found in th_read() function

2121297 - CVE-2021-33646 libtar: memory leak found in th_read() function

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