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Red Hat 9.0 RHSA-2023-1200-01 Moderate gnutls Timing Side-Channel

red hat
Calendar Grey March 14, 2023
Dist Redhat Esm H88
Explore the recent Red Hat advisories on moderate gnutls updates, highlighting fixes for timing side-channel vulnerabilities to enhance software security and protect sensitive data
An update for gnutls is now available for Red Hat Enterprise Linux 9.0 Extended Update Support

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 gnutls packages provide the GNU Transport Layer Security (GnuTLS) library, which implements cryptographic algorithms and protocols such as SSL, TLS, and DTLS.
Security Fix(es):
* gnutls: timing side-channel in the TLS RSA key exchange code (CVE-2023-0361)
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.
Bug Fix(es):
* CCM tag length should be limited to known values (BZ#2144536)
* In FIPS mode, gnutls should reject RSASSA-PSS salt lengths larger than the output size of the hash function used, or provide an indicator (BZ#2144538)
* dracut-cmdline[554]: Error in GnuTLS initialization: Error while performing self checks i FIPS mode (BZ#2149641)

Topics%20covered

Topics Covered

security advisory moderate update bug fix red hat enterprise linux gnutls timing side-channel

References

https://access.redhat.com/security/cve/CVE-2023-0361 https://access.redhat.com/security/updates/classification/#moderate

Package List

Red Hat Enterprise Linux AppStream EUS (v.9.0):
aarch64: gnutls-c++-3.7.6-18.el9_0.aarch64.rpm gnutls-c++-debuginfo-3.7.6-18.el9_0.aarch64.rpm gnutls-dane-3.7.6-18.el9_0.aarch64.rpm gnutls-dane-debuginfo-3.7.6-18.el9_0.aarch64.rpm gnutls-debuginfo-3.7.6-18.el9_0.aarch64.rpm gnutls-debugsource-3.7.6-18.el9_0.aarch64.rpm gnutls-devel-3.7.6-18.el9_0.aarch64.rpm gnutls-utils-3.7.6-18.el9_0.aarch64.rpm gnutls-utils-debuginfo-3.7.6-18.el9_0.aarch64.rpm
ppc64le: gnutls-c++-3.7.6-18.el9_0.ppc64le.rpm gnutls-c++-debuginfo-3.7.6-18.el9_0.ppc64le.rpm gnutls-dane-3.7.6-18.el9_0.ppc64le.rpm gnutls-dane-debuginfo-3.7.6-18.el9_0.ppc64le.rpm gnutls-debuginfo-3.7.6-18.el9_0.ppc64le.rpm gnutls-debugsource-3.7.6-18.el9_0.ppc64le.rpm gnutls-devel-3.7.6-18.el9_0.ppc64le.rpm gnutls-utils-3.7.6-18.el9_0.ppc64le.rpm gnutls-utils-debuginfo-3.7.6-18.el9_0.ppc64le.rpm
s390x: gnutls-c++-3.7.6-18.el9_0.s390x.rpm gnutls-c++-debuginfo-3.7.6-18.el9_0.s390x.rpm gnutls-dane-3.7.6-18.el9_0.s390x.rpm gnutls-dane-debuginfo-3.7.6-18.el9_0.s390x.rpm gnutls-debuginfo-3.7.6-18.el9_0.s390x.rpm gnutls-debugsource-3.7.6-18.el9_0.s390x.rpm gnutls-devel-3.7.6-18.el9_0.s390x.rpm gnutls-utils-3.7.6-18.el9_0.s390x.rpm gnutls-utils-debuginfo-3.7.6-18.el9_0.s390x.rpm
x86_64: gnutls-c++-3.7.6-18.el9_0.i686.rpm

Read the Full Advisory


Advisory ID: RHSA-2023:1200-01
Product: Red Hat Enterprise Linux
Advisory URL: https://access.redhat.com/errata/RHSA-2023:1200
Issue date: 2023-03-14

Topic

An update for gnutls is now available for Red Hat Enterprise Linux 9.0Extended Update Support.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 update bug fix red hat enterprise linux gnutls timing side-channel

Relevant Releases Architectures

Red Hat Enterprise Linux AppStream EUS (v.9.0) - aarch64, ppc64le, s390x, x86_64

Red Hat Enterprise Linux BaseOS EUS (v.9.0) - aarch64, ppc64le, s390x, x86_64

Bugs Fixed

2144538 - In FIPS mode, gnutls should reject RSASSA-PSS salt lengths larger than the output size of the hash function used, or provide an indicator [rhel-9.0.0.z]

2149641 - dracut-cmdline[554]: Error in GnuTLS initialization: Error while performing self checks i FIPS mode [rhel-9.0.0.z]

2162596 - CVE-2023-0361 gnutls: timing side-channel in the TLS RSA key exchange code

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