openssl: OpenSSL: Denial of Service via unbounded memory growth in QUIC server

A flaw was found in OpenSSL. A remote attacker could exploit this by sending a large number of QUIC Initial packets to an OpenSSL QUIC server. This can cause the server to allocate and queue new incoming channels without limit, leading to unbounded memory growth. The excessive memory consumption...

openssl: excessive memory use buffering DTLS records for a future epoch

A flaw was found in OpenSSL. Receiving a DTLS Datagram Transport Layer Security record for a future epoch while a handshake is in progress causes OpenSSL to buffer an excessive amount of memory. This allows a peer to cause memory exhaustion, eventually resulting in a denial of service, using a...

openssl: RPK server signature algorithm selection can dereference a missing certificate

A flaw was found in OpenSSL. In a server or client configuration with RFC7250 Raw Public Keys RPKs enabled, where only the private key with no certificate is configured, a NULL pointer dereference may occur when the remote peer solicits raw public keys and also sends the typically omitted...

openssl: CMP indefinite cache growth of ExtraCerts

A flaw was found in OpenSSL. The CMP Certificate Management Protocol implementation does not clear cached additional certificates when an invalid message is received, leading to excessive memory consumption. This allows a malicious client to repeatedly send requests containing unique extra...

openssl: invalid pointer dereference in CMP server via crafted protectionAlg

A flaw was found in OpenSSL. A crafted CMP Certificate Management Protocol message can cause an invalid pointer dereference due to a missing type check in the password-based protection verification. A remote, unauthenticated attacker can crash applications acting as a CMP server or client,...

openssl: QUIC ACK-only packet retention can cause memory exhaustion

A flaw was found in OpenSSL. The QUIC protocol implementation retains metadata for ACK-only packets for the lifetime of a connection, leading to excessive memory consumption. This allows a peer to repeatedly send ack-eliciting packets while not acknowledging ACK-only responses to cause memory...

openssl: QUIC server may trigger double free when processing INITIAL packet

A flaw was found in OpenSSL. A malformed INITIAL packet with an invalid DCID destination connection ID can cause the QUIC server to double free the QRX object. This issue leads to memory corruption, causing the termination of the QUIC server process and resulting in a denial of service...

openssl: untrusted sender DN used as format string in CMP response validation

A flaw was found in OpenSSL. A malicious CMP Certificate Management Protocol endpoint can send an unexpected distinguished name DN directly as the format string argument to ERRraisedata, causing the application to dereference and write to unrelated stack contents. This can lead to a crash in the...

Important: Red Hat Security Advisory: openssl security, bug fix, and enhancement update

An update for openssl is now available for Red Hat Enterprise Linux 10. 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...

openssl: heap buffer overflow in CMS key unwrapping

A flaw was found in OpenSSL. A crafted CMS Cryptographic Message Syntax message can cause an 8-byte out-of-bounds heap write when it is decrypted with CMSdecrypt. This issue occurs because the CMS decryption process incorrectly sizes the key-unwrap output buffer when using the AES-WRAP-PAD unwrap...

Important: openssl security, bug fix, and enhancement update

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 Fixes: openssl: OpenSSL: Denial of Service via unbounded memory growth in QUIC server CVE-2026-14456 openssl: QUI...

ALSA-2026:67165 Important: openssl security, bug fix, and enhancement update

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 Fixes: openssl: OpenSSL: Denial of Service via unbounded memory growth in QUIC server CVE-2026-14456 openssl: QUI...

ALSA-2026:67154 Important: openssl security, bug fix, and enhancement update

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 Fixes: openssl: OpenSSL: Denial of Service via unbounded memory growth in QUIC server CVE-2026-14456 openssl: QUI...

Amazon Linux 2 : openssl (ALAS-2026-3919)

The version of openssl installed on the remote host is prior to 1.0.2k-24. It is, therefore, affected by multiple vulnerabilities as referenced in the ALAS2-2026-3919 advisory. Issue summary: Receiving a DTLS record for a future epoch while a handshakeis in progress causes OpenSSL to buffer far...

Important: openssl11

Issue Overview: Issue summary: Receiving a DTLS record for a future epoch while a handshake is in progress causes OpenSSL to buffer far more memory than the record itself requires. Impact summary: A peer can use a small amount of network traffic to make an OpenSSL DTLS endpoint retain a...

Important: openssl

Issue Overview: Issue summary: Receiving a DTLS record for a future epoch while a handshake is in progress causes OpenSSL to buffer far more memory than the record itself requires. Impact summary: A peer can use a small amount of network traffic to make an OpenSSL DTLS endpoint retain a...

openssl security, bug fix, and enhancement update

3.5.8-1.0.1 - Replace upstream references Orabug: 34340177 3.5.8.openela.0.1 - Add OpenELA specific changes 1:3.5.8-1 - Rebase to OpenSSL 3.5.8 Resolves: RHEL-242945 Resolves: RHEL-246260 Resolves: RHEL-246284 Resolves: RHEL-246319 Resolves: RHEL-246439 Resolves: RHEL-246443 Resolves: RHEL-246447...

Oracle Linux 10 : ELSA-2026-67154-0: / openssl (ELSA-2026-671540)

The remote Oracle Linux 10 host has packages installed that are affected by multiple vulnerabilities as referenced in the ELSA-2026-671540 advisory. 3.5.8-1.0.1 - Replace upstream references Orabug: 34340177 - Update FIPS provider name Orabug: 35824276 1:3.5.8-1 - Rebase to OpenSSL 3.5.8 Resolves...

Oracle Linux 9 : ELSA-2026-67165-0: / openssl (ELSA-2026-671650)

The remote Oracle Linux 9 host has packages installed that are affected by multiple vulnerabilities as referenced in the ELSA-2026-671650 advisory. 3.5.8-1.0.1 - Replace upstream references Orabug: 34340177 3.5.8.openela.0.1 - Add OpenELA specific changes 1:3.5.8-1 - Rebase to OpenSSL 3.5.8...

Amazon Linux 2023 : openssl, openssl-devel, openssl-fips-provider-latest (ALAS2023-2026-2136)

It is, therefore, affected by multiple vulnerabilities as referenced in the ALAS2023-2026-2136 advisory. Issue summary: In a server or client configuration with RFC7250 Raw Public Keys RPKsenabled, and only the private key with no associated certificate configured locally,a NULL pointer dereferen...