Openssl Security Update — AlmaLinux 9 (ALSA-2026:67165)

Type:

security

Severity:

important

Release date:

2026-10-26

Description:

OpenSSL is a toolkit that implements the Secure Sockets Layer (SSL) and Transport Layer Security (TLS) protocols, as well as a full-strength general-purpose cryptography library.

Security Fix(es):

* openssl: OpenSSL: Denial of Service via unbounded memory growth in QUIC server (CVE-2026-14456)
* openssl: QUIC server may trigger double free when processing INITIAL packet (CVE-2026-18798)
* openssl: heap buffer overflow in CMS key unwrapping (CVE-2026-63072)
* openssl: invalid pointer dereference in CMP server via crafted protectionAlg (CVE-2026-63076)
* openssl: RPK server signature algorithm selection can dereference a missing certificate (CVE-2026-14457)
* openssl: excessive memory use buffering DTLS records for a future epoch (CVE-2026-54874)
* openssl: untrusted sender DN used as format string in CMP response validation (CVE-2026-63073)
* openssl: CMP indefinite cache growth of ExtraCerts (CVE-2026-63074)
* openssl: QUIC ACK-only packet retention can cause memory exhaustion (CVE-2026-63075)

Bug Fix(es) and Enhancement(s):

* openssl: HollowByte remote memory-exhaustion DoS fix may be missing [AlmaLinux 9.8.z] (JIRA:AlmaLinux-232828)

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.

References:

• CVE-2026-14456
• CVE-2026-14457
• CVE-2026-18798
• CVE-2026-54874
• CVE-2026-63072
• CVE-2026-63073
• CVE-2026-63074
• CVE-2026-63075
• CVE-2026-63076
• CVE-2026-75803
• RHSA-2026:67165
• ALSA-2026:67165

Updated packages listed below:

Notes:

This page is generated automatically from Red Hat security data and has not been checked for errors. For clarification or corrections please contact the AlmaLinux Packaging Team.