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Red Hat GnuTLS packages may let encrypted data be altered

published 2 years ago

Summary

The GnuTLS libraries provided by Red Hat can be tricked into accepting forged cryptographic information, which could let attackers modify or read data that should be protected. This affects the standard GnuTLS packages and their debug versions. Apply the Red Hat security update as soon as possible to keep communications secure.

What to do

Update redhat gnutls-c++ to version 0:3.6.16-7.el8_8.1.
Update redhat gnutls-c++-debuginfo to version 0:3.6.16-7.el8_8.1.
Update redhat gnutls-dane to version 0:3.6.16-7.el8_8.1.
Update redhat gnutls-dane-debuginfo to version 0:3.6.16-7.el8_8.1.
Update redhat gnutls-debuginfo to version 0:3.6.16-7.el8_8.1.
Update redhat gnutls-debugsource to version 0:3.6.16-7.el8_8.1.
Update redhat gnutls-devel to version 0:3.6.16-7.el8_8.1.
Update redhat gnutls-utils to version 0:3.6.16-7.el8_8.1.
Update redhat gnutls-utils-debuginfo to version 0:3.6.16-7.el8_8.1.
Update redhat gnutls to version 0:3.6.16-7.el8_8.1.

Affected software

Ecosystem	Vendor	Product	Affected versions
Red Hat:rhel_eus:8.8::appstream	redhat	gnutls-c++	< 0:3.6.16-7.el8_8.1 Fix: upgrade to 0:3.6.16-7.el8_8.1
Red Hat:rhel_eus:8.8::appstream	redhat	gnutls-c++-debuginfo	< 0:3.6.16-7.el8_8.1 Fix: upgrade to 0:3.6.16-7.el8_8.1
Red Hat:rhel_eus:8.8::appstream	redhat	gnutls-dane	< 0:3.6.16-7.el8_8.1 Fix: upgrade to 0:3.6.16-7.el8_8.1
Red Hat:rhel_eus:8.8::appstream	redhat	gnutls-dane-debuginfo	< 0:3.6.16-7.el8_8.1 Fix: upgrade to 0:3.6.16-7.el8_8.1
Red Hat:rhel_eus:8.8::appstream	redhat	gnutls-debuginfo	< 0:3.6.16-7.el8_8.1 Fix: upgrade to 0:3.6.16-7.el8_8.1
Red Hat:rhel_eus:8.8::appstream	redhat	gnutls-debugsource	< 0:3.6.16-7.el8_8.1 Fix: upgrade to 0:3.6.16-7.el8_8.1
Red Hat:rhel_eus:8.8::appstream	redhat	gnutls-devel	< 0:3.6.16-7.el8_8.1 Fix: upgrade to 0:3.6.16-7.el8_8.1
Red Hat:rhel_eus:8.8::appstream	redhat	gnutls-utils	< 0:3.6.16-7.el8_8.1 Fix: upgrade to 0:3.6.16-7.el8_8.1
Red Hat:rhel_eus:8.8::appstream	redhat	gnutls-utils-debuginfo	< 0:3.6.16-7.el8_8.1 Fix: upgrade to 0:3.6.16-7.el8_8.1
Red Hat:rhel_eus:8.8::baseos	redhat	gnutls	< 0:3.6.16-7.el8_8.1 Fix: upgrade to 0:3.6.16-7.el8_8.1
Red Hat:rhel_eus:8.8::baseos	redhat	gnutls-c++-debuginfo	< 0:3.6.16-7.el8_8.1 Fix: upgrade to 0:3.6.16-7.el8_8.1
Red Hat:rhel_eus:8.8::baseos	redhat	gnutls-dane-debuginfo	< 0:3.6.16-7.el8_8.1 Fix: upgrade to 0:3.6.16-7.el8_8.1
Red Hat:rhel_eus:8.8::baseos	redhat	gnutls-debuginfo	< 0:3.6.16-7.el8_8.1 Fix: upgrade to 0:3.6.16-7.el8_8.1
Red Hat:rhel_eus:8.8::baseos	redhat	gnutls-debugsource	< 0:3.6.16-7.el8_8.1 Fix: upgrade to 0:3.6.16-7.el8_8.1
Red Hat:rhel_eus:8.8::baseos	redhat	gnutls-utils-debuginfo	< 0:3.6.16-7.el8_8.1 Fix: upgrade to 0:3.6.16-7.el8_8.1

Original advisory text

Red Hat Security Advisory: gnutls security update

References

https://access.redhat.com/errata/RHSA-2024:0399 Vendor Advisory
https://access.redhat.com/security/updates/classification/#moderate Third Party Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=2248445 Third Party Advisory
https://security.access.redhat.com/data/csaf/v2/advisories/2024/rhsa-2024_0399.j... Vendor Advisory
https://access.redhat.com/security/cve/CVE-2023-5981 Third Party Advisory
https://www.cve.org/CVERecord?id=CVE-2023-5981 Vendor Advisory
https://nvd.nist.gov/vuln/detail/CVE-2023-5981 Vendor Advisory
https://gnutls.org/security-new.html#GNUTLS-SA-2023-10-23 Third Party Advisory

Fix within

Internet-facing 14 days

Internal 60 days

Not known to be exploited
Can be exploited automatically (estimated)
Gives an attacker partial control (estimated)

Severity

5.9 Medium

Timeline

Published16 Sep 2024

Updated21 Oct 2026

First seen21 Oct 2026

Sources

RHSA-2024:0399 · OSV

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