RHSA-2026:1473 - Security Advisory

Topic

An update for openssl is now available for Red Hat Enterprise Linux 9.

Red Hat Product Security has rated this update as having a security impact of Important. 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

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: Arbitrary code execution or denial of service through crafted PKCS#12 file (CVE-2025-11187)
• openssl: OpenSSL: Remote code execution or Denial of Service via oversized Initialization Vector in CMS parsing (CVE-2025-15467)
• openssl: OpenSSL: Denial of Service via NULL pointer dereference in QUIC protocol handling (CVE-2025-15468)
• openssl: OpenSSL: Data integrity bypass in `openssl dgst` command due to silent truncation (CVE-2025-15469)
• openssl: OpenSSL: Denial of Service due to excessive memory allocation in TLS 1.3 certificate compression (CVE-2025-66199)
• openssl: OpenSSL: Denial of Service due to out-of-bounds write in BIO filter (CVE-2025-68160)
• openssl: OpenSSL: Information disclosure and data tampering via specific low-level OCB encryption/decryption calls (CVE-2025-69418)
• openssl: OpenSSL: Arbitrary code execution due to out-of-bounds write in PKCS#12 processing (CVE-2025-69419)
• openssl: OpenSSL: Denial of Service via malformed PKCS#12 file processing (CVE-2025-69421)
• openssl: OpenSSL: Denial of Service via malformed TimeStamp Response (CVE-2025-69420)
• openssl: OpenSSL: Denial of Service due to type confusion in PKCS#12 file processing (CVE-2026-22795)
• openssl: OpenSSL: Denial of Service via type confusion in PKCS#7 signature verification (CVE-2026-22796)

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.

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

Affected Products

• Red Hat Enterprise Linux for x86_64 9 x86_64
• Red Hat Enterprise Linux for IBM z Systems 9 s390x
• Red Hat Enterprise Linux for Power, little endian 9 ppc64le
• Red Hat Enterprise Linux for ARM 64 9 aarch64

Fixes

• BZ - 2430375 - CVE-2025-11187 openssl: OpenSSL: Arbitrary code execution or denial of service through crafted PKCS#12 file
• BZ - 2430376 - CVE-2025-15467 openssl: OpenSSL: Remote code execution or Denial of Service via oversized Initialization Vector in CMS parsing
• BZ - 2430377 - CVE-2025-15468 openssl: OpenSSL: Denial of Service via NULL pointer dereference in QUIC protocol handling
• BZ - 2430378 - CVE-2025-15469 openssl: OpenSSL: Data integrity bypass in `openssl dgst` command due to silent truncation
• BZ - 2430379 - CVE-2025-66199 openssl: OpenSSL: Denial of Service due to excessive memory allocation in TLS 1.3 certificate compression
• BZ - 2430380 - CVE-2025-68160 openssl: OpenSSL: Denial of Service due to out-of-bounds write in BIO filter
• BZ - 2430381 - CVE-2025-69418 openssl: OpenSSL: Information disclosure and data tampering via specific low-level OCB encryption/decryption calls
• BZ - 2430386 - CVE-2025-69419 openssl: OpenSSL: Arbitrary code execution due to out-of-bounds write in PKCS#12 processing
• BZ - 2430387 - CVE-2025-69421 openssl: OpenSSL: Denial of Service via malformed PKCS#12 file processing
• BZ - 2430388 - CVE-2025-69420 openssl: OpenSSL: Denial of Service via malformed TimeStamp Response
• BZ - 2430389 - CVE-2026-22795 openssl: OpenSSL: Denial of Service due to type confusion in PKCS#12 file processing
• BZ - 2430390 - CVE-2026-22796 openssl: OpenSSL: Denial of Service via type confusion in PKCS#7 signature verification

CVEs

• CVE-2025-11187
• CVE-2025-15467
• CVE-2025-15468
• CVE-2025-15469
• CVE-2025-66199
• CVE-2025-68160
• CVE-2025-69418
• CVE-2025-69419
• CVE-2025-69420
• CVE-2025-69421
• CVE-2026-22795
• CVE-2026-22796

References

• https://access.redhat.com/security/updates/classification/#important