openssl: Possible NULL Dereference in Password-Based CMS Decryption

A flaw was found in OpenSSL. A remote attacker could exploit a NULL pointer dereference vulnerability in the Cryptographic Message Syntax CMS decryption process by providing a specially crafted password-encrypted CMS message. This occurs because the keyDerivationAlgorithm field, which is optional...

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: Double-free When Checking OCSP Stapled Response

A flaw was found in OpenSSL. A malicious server can exploit the TLS Online Certificate Status Protocol OCSP stapling feature by sending a specially crafted response. This can trigger a double-free vulnerability in the client's certificate verification process, potentially leading to a Denial of...

openssl: AES-OCB IV Ignored on EVP_Cipher() Path

A flaw was found in OpenSSL. Applications that use the AES-OCB encryption method with a specific one-shot interface EVPCipher will have their provided Initialization Vector IV silently discarded. This leads to the same internal cryptographic value being used repeatedly, which compromises the...

openssl: NULL pointer dereference in QUIC server initial packet handling

A flaw was found in the OpenSSL QUIC Quick UDP Internet Connections server. A remote attacker could send a specially crafted QUIC initial packet with an invalid token. If the server's address validation is explicitly disabled, this could lead to a NULL pointer dereference, causing the server...

Important: Red Hat Security Advisory: Red Hat Hardened Images RPMs bug fix and enhancement update

An update for Red Hat Hardened Images RPMs is now available. This update includes the following RPMs: openssl3: openssl3-devel-3.5.8-0.1.hum1 aarch64, x8664 openssl3-devel-engine-3.5.8-0.1.hum1 aarch64, x8664 openssl3-libs-3.5.8-0.1.hum1 aarch64, x8664 openssl3-3.5.8-0.1.hum1.src src...

openssl: NULL Dereference in Certificate Verification with OCSP Checking

A flaw was found in OpenSSL. When an application is configured with specific non-default settings for certificate verification, including both Online Certificate Status Protocol OCSP response checking and partial chain verification, a NULL dereference can occur. This vulnerability can be triggere...

openssl: Possible Out of Bounds Read in X509_VERIFY_PARAM_set1_email()

A flaw was found in OpenSSL. When an application uses the X509VERIFYPARAMset1email function to validate a specially crafted S/MIME Secure/Multipurpose Internet Mail Extensions email address, an out-of-bounds read can occur. A remote attacker could exploit this vulnerability by sending a malicious...

openssl: OpenSSL: Denial of Service due to heap out-of-bounds read in CMS password-based decryption

A flaw was found in OpenSSL. When processing attacker-supplied Cryptographic Message Syntax CMS data using password-based decryption, an attacker can choose a stream-mode Key Encryption Key KEK cipher. This can trigger a heap out-of-bounds read, potentially causing an application crash and leadin...

[SECURITY] [DSA 6465-1] openssl security update

------------------------------------------------------------------------- Debian Security Advisory DSA-6465-1 [email protected] https://www.debian.org/security/ Salvatore Bonaccorso August 25, 2026 https://www.debian.org/security/faq -...

USN-8678-2: OpenSSL, OpenSSL 1.0 vulnerabilities

USN-8678-1 fixed vulnerabilities in OpenSSL. This update provides the corresponding fix for OpenSSL and OpenSSL 1.0 on Ubuntu 14.04 LTS, Ubuntu 16.04 LTS, and Ubuntu 18.04 LTS. In addition, this update also fixes the following issues that were not previously addressed in those releases: It was...

USN-8678-2 openssl, openssl1.0 vulnerabilities

USN-8678-1 fixed vulnerabilities in OpenSSL. This update provides the corresponding fix for OpenSSL and OpenSSL 1.0 on Ubuntu 14.04 LTS, Ubuntu 16.04 LTS, and Ubuntu 18.04 LTS. In addition, this update also fixes the following issues that were not previously addressed in those releases: It was...

curl: CVE-2026-80230: OpenSSL pinning bypass

Summary Curlosslcheckpeercert line 4795 calls SSLget1peercertificate. When no peer certificate is available — as with anonymous cipher suites like AECDH-AES128-SHA — the function returns NULL. The subsequent guard at lines 4798–4799 checks !connconfig-verifypeer || connconfig-verifyhost; when bot...

curl: CVE-2026-80229: OpenSSL provider use-after-free

Summary When CURLOPTSSLENGINE is set e.g. "default" on OpenSSL 3.x, osslsetprovider line 1791 allocates a per-handle OSSLLIBCTX and stores it in data-state.libctx. During TLS connection setup, SSLCTXnewex line 3750 receives this library context and embeds a pointer to it inside the newly created...

USN-8678-1: OpenSSL vulnerabilities

It was discovered that OpenSSL incorrectly handled the QUIC server incoming channel queue. A remote attacker could possibly use this issue to cause OpenSSL to use excessive resources, leading to a denial of service. This issue only affected Ubuntu 26.04 LTS. CVE-2026-14456 It was discovered that...

USN-8678-1 openssl vulnerabilities

It was discovered that OpenSSL incorrectly handled the QUIC server incoming channel queue. A remote attacker could possibly use this issue to cause OpenSSL to use excessive resources, leading to a denial of service. This issue only affected Ubuntu 26.04 LTS. CVE-2026-14456 It was discovered that...

CVE-2026-63074

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...

CVE-2026-63073

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...

CVE-2026-54874

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...

CVE-2026-14457

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...