RHSA-2023:7763 — Security Advisory
Red Hat Security Advisory: runc security update
Severity
ModerateRed Hat Product Security
Products
Official CSAF product identity
Published · December 13, 2023
Updated · October 23, 2026
Topic
An update for runc is now available for Red Hat Enterprise Linux 9.
Red Hat Product Security has rated this update as having a security impact of Moderate. 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 runC tool is a lightweight, portable implementation of the Open Container Format (OCF) that provides container runtime.
Security Fix(es):
-
golang: crypto/tls: slow verification of certificate chains containing large RSA keys (CVE-2023-29409)
-
golang: crypto/tls: panic when processing post-handshake message on QUIC connections (CVE-2023-39321)
-
golang: crypto/tls: lack of a limit on buffered post-handshake (CVE-2023-39322)
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.