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Important Update for Red Hat Enterprise Linux 8.2: RHSA-2022:7283 for RCE

red hat
Calendar Grey November 1, 2022
Dist Redhat Esm H88
Important libksba security patch issued for Red Hat Enterprise Linux addressing a significant remote code execution flaw.
An update for libksba is now available for Red Hat Enterprise Linux 8.2 Advanced Mission Critical Update Support, Red Hat Enterprise Linux 8.2 Telecommunications Update Service, an...

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

KSBA (pronounced Kasbah) is a library to make X.509 certificates as well as the CMS easily accessible by other applications. Both specifications are building blocks of S/MIME and TLS.
Security Fix(es):
* libksba: integer overflow may lead to remote code execution (CVE-2022-3515)
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.

Topics%20covered

Topics Covered

security advisory remote code execution Red Hat Enterprise Linux important integer overflow libksba

References

https://access.redhat.com/security/cve/CVE-2022-3515 https://access.redhat.com/security/updates/classification#important

Package List

Red Hat Enterprise Linux BaseOS AUS (v. 8.2):
Source: libksba-1.3.5-8.el8_2.src.rpm
aarch64: libksba-1.3.5-8.el8_2.aarch64.rpm libksba-debuginfo-1.3.5-8.el8_2.aarch64.rpm libksba-debugsource-1.3.5-8.el8_2.aarch64.rpm
ppc64le: libksba-1.3.5-8.el8_2.ppc64le.rpm libksba-debuginfo-1.3.5-8.el8_2.ppc64le.rpm libksba-debugsource-1.3.5-8.el8_2.ppc64le.rpm
s390x: libksba-1.3.5-8.el8_2.s390x.rpm libksba-debuginfo-1.3.5-8.el8_2.s390x.rpm libksba-debugsource-1.3.5-8.el8_2.s390x.rpm
x86_64: libksba-1.3.5-8.el8_2.i686.rpm libksba-1.3.5-8.el8_2.x86_64.rpm libksba-debuginfo-1.3.5-8.el8_2.i686.rpm libksba-debuginfo-1.3.5-8.el8_2.x86_64.rpm libksba-debugsource-1.3.5-8.el8_2.i686.rpm libksba-debugsource-1.3.5-8.el8_2.x86_64.rpm
Red Hat Enterprise Linux BaseOS E4S (v. 8.2):
Source: libksba-1.3.5-8.el8_2.src.rpm
aarch64: libksba-1.3.5-8.el8_2.aarch64.rpm libksba-debuginfo-1.3.5-8.el8_2.aarch64.rpm libksba-debugsource-1.3.5-8.el8_2.aarch64.rpm
ppc64le: libksba-1.3.5-8.el8_2.ppc64le.rpm libksba-debuginfo-1.3.5-8.el8_2.ppc64le.rpm libksba-debugsource-1.3.5-8.el8_2.ppc64le.rpm
s390x: libksba-1.3.5-8.el8_2.s390x.rpm libksba-debuginfo-1.3.5-8.el8_2.s390x.rpm libksba-debugsource-1.3.5-8.el8_2.s390x.rpm
x86_64: libksba-1.3.5-8.el8_2.i686.rpm libksba-1.3.5-8.el8_2.x86_64.rpm

Read the Full Advisory


Severity
important
Lowest
Low
Medium
High
Critical

Advisory ID: RHSA-2022:7283-01
Product: Red Hat Enterprise Linux
Advisory URL: https://access.redhat.com/errata/RHSA-2022:7283
Issue date: 2022-11-01

Topic

An update for libksba is now available for Red Hat Enterprise Linux 8.2Advanced Mission Critical Update Support, Red Hat Enterprise Linux 8.2Telecommunications Update Service, and Red Hat Enterprise Linux 8.2 UpdateServices for SAP Solutions.Red Hat Product Security has rated this update as having a security impactof Important. A Common Vulnerability Scoring System (CVSS) base score,which gives a detailed severity rating, is available for each vulnerabilityfrom the CVE link(s) in the References section.

Topics%20covered

Topics Covered

security advisory remote code execution Red Hat Enterprise Linux important integer overflow libksba

Relevant Releases Architectures

Red Hat Enterprise Linux BaseOS AUS (v. 8.2) - aarch64, ppc64le, s390x, x86_64

Red Hat Enterprise Linux BaseOS E4S (v. 8.2) - aarch64, ppc64le, s390x, x86_64

Red Hat Enterprise Linux BaseOS TUS (v. 8.2) - aarch64, ppc64le, s390x, x86_64

Bugs Fixed

2135610 - CVE-2022-3515 libksba: integer overflow may lead to remote code execution

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