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ALSA-2026:1472 — Important: openssl security update

Affected: AlmaLinux:10: openssl, AlmaLinux:10: openssl-devel, AlmaLinux:10: openssl-libs, AlmaLinux:10: openssl-perl

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 i…

bdu:2026-01215

BELL-CVE-2025-15468

Affected: Alpaquita:25: openssl, Alpaquita:stream: openssl, BellSoft Hardened Containers:25: openssl, BellSoft Hardened Containers:stream: openssl

certfr-2026-avi-0096 — De multiples vulnérabilités ont été découvertes dans OpenSSL. Certaines d'entre elles permettent à un attaquant de prov…

certfr-2026-avi-0096

Withdrawn: CLEANSTART-2026-GK72927 — Issue summary: PBMAC1 parameters in PKCS#12 files are missing validation which can trigger a stack-based buffer overflo…

Withdrawn by the publisher.

Affected: CleanStart: openssl

Multiple security vulnerabilities affect the openssl package. Issue summary: PBMAC1 parameters in PKCS#12 files are missing validation which can trigger a stack-based buffer overflow, invalid pointer or NULL pointer dereference during MAC verification. See references for individual vulnerability details.

EUVD-2026-266895

fkie_cve-2025-15468

Issue summary: If an application using the SSL_CIPHER_find() function in a QUIC protocol client or server receives an unknown cipher suite from the peer, a NULL dereference occurs.

Impact summary: A NULL pointer dereference leads to abnormal termination of the running process causing Denial of Service.

Some applications call SSL_CIPHER_find() from the client_hello_cb callback on the cipher ID received from the peer. If this is done with an SSL object implementing the QUIC protocol, NULL pointer dereference will happen if the examined cipher ID is unknown or unsupported.

As it is not very common to call this function in applications using the QUIC protocol and the worst outcome is Denial of Service, the issue was assessed as Low severity.

The vulnerable code was introduced in the 3.2 version with the addition of the QUIC protocol support.

The FIPS modules in 3.6, 3.5, 3.4 and 3.3 are not affected by this issue, as the QUIC implementation is outside the OpenSSL FIPS module boundary.

OpenSSL 3.6, 3.5, 3.4 and 3.3 are vulnerable to this issue.

OpenSSL 3.0, 1.1.1 and 1.0.2 are not affected by this issue.

GHSA-rhx3-fg8p-f9m4

Issue summary: If an application using the SSL_CIPHER_find() function in a QUIC protocol client or server receives an unknown cipher suite from the peer, a NULL dereference occurs.

Impact summary: A NULL pointer dereference leads to abnormal termination of the running process causing Denial of Service.

As it is not very common to call this function in applications using the QUIC protocol and the worst outcome is Denial of Service, the issue was assessed as Low severity.

The vulnerable code was introduced in the 3.2 version with the addition of the QUIC protocol support.

The FIPS modules in 3.6, 3.5, 3.4 and 3.3 are not affected by this issue, as the QUIC implementation is outside the OpenSSL FIPS module boundary.

OpenSSL 3.6, 3.5, 3.4 and 3.3 are vulnerable to this issue.

OpenSSL 3.0, 1.1.1 and 1.0.2 are not affected by this issue.

openSUSE-SU-2026:10237-1 — libopenssl-3-devel-3.5.3-2.1 on GA media

libopenssl-3-devel-3.5.3-2.1 on GA media

RHSA-2026:1736 — Red Hat Security Advisory: A Subscription Management tool for finding and reporting Red Hat product usage

curl: libcurl: Curl out of bounds read for cookie path openssl: OpenSSL: Arbitrary code execution or denial of service through crafted PKCS#12 file cpython: python: cpython: Quadratic algorithm in xml.dom.minidom leads to denial of service postgresql: libpq: libpq undersizes allocations, via integer wraparound glib: Integer overflow in in g_escape_uri_string() cpython: Excessive read buffering DoS in http.client openssl: OpenSSL: Remote code execution or Denial of Service via oversized Initialization Vector in CMS parsing openssl: OpenSSL: Denial of Service via NULL pointer dereference in QUIC protocol handling openssl: OpenSSL: Data integrity bypass in `openssl dgst` command due to silent truncation openssl: OpenSSL: Denial of Service due to excessive memory allocation in TLS 1.3 certificate compression urllib3: urllib3: Unbounded decompression chain leads to resource exhaustion urllib3: urllib3 Streaming API improperly handles highly compressed data openssl: OpenSSL: Denial of Service due to out-of-bounds write in BIO filter GnuPG: GnuPG: Information disclosure and potential arbitrary code execution via out-of-bounds write openssl: OpenSSL: Information disclosure and data tampering via specific low-level OCB encryption/decryption calls openssl: OpenSSL: Arbitrary code execution due to out-of-bounds write in PKCS#12 processing openssl: OpenSSL: Denial of Service via malformed TimeStamp Response openssl: OpenSSL: Denial of Service via malformed PKCS#12 file processing urllib…

SUSE-SU-2026:20211-1 — Security update for openssl-3

Security update for openssl-3

UBUNTU-CVE-2025-15468

Affected: Ubuntu:Pro:16.04:LTS: nodejs, Ubuntu:Pro:18.04:LTS: nodejs, Ubuntu:Pro:22.04:LTS: nodejs, Ubuntu:25.10: openssl, Ubuntu:26.04:LTS: openssl

Issue summary: If an application using the SSL_CIPHER_find() function in a QUIC protocol client or server receives an unknown cipher suite from the peer, a NULL dereference occurs. Impact summary: A NULL pointer dereference leads to abnormal termination of the running process causing Denial of Service. Some applications call SSL_CIPHER_find() from the client_hello_cb callback on the cipher ID received from the peer. If this is done with an SSL object implementing the QUIC protocol, NULL pointer dereference will happen if the examined cipher ID is unknown or unsupported. As it is not very common to call this function in applications using the QUIC protocol and the worst outcome is Denial of Service, the issue was assessed as Low severity. The vulnerable code was introduced in the 3.2 version with the addition of the QUIC protocol support. The FIPS modules in 3.6, 3.5, 3.4 and 3.3 are not affected by this issue, as the QUIC implementation is outside the OpenSSL FIPS module boundary. OpenSSL 3.6, 3.5, 3.4 and 3.3 are vulnerable to this issue. OpenSSL 3.0, 1.1.1 and 1.0.2 are not affected by this issue.

WID-SEC-W-2026-0234 — OpenSSL: Mehrere Schwachstellen

Ein Angreifer kann mehrere Schwachstellen in OpenSSL ausnutzen, um beliebigen Programmcode auszuführen, einen Denial-of-Service-Zustand zu verursachen oder vertrauliche Informationen offenzulegen.