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: Heap buffer overflow due to signed integer overflow in Unicode output sizing (CVE-2026-7383) * openssl: OpenSSL: Denial of Service due to heap out-of-bounds read in CMS password-based decryption (CVE-2026-9076) * openssl: OpenSSL: Heap buffer over-read in ASN.1 decoding can lead to denial of service or information disclosure. (CVE-2026-34180) * openssl: PKCS#12 Files with PBMAC1 Are Accepted with Short HMAC Keys (CVE-2026-34181) * openssl: CMS AuthEnvelopedData Processing May Accept Forged Messages (CVE-2026-34182) * openssl: Unbounded Memory Growth in the QUIC PATH_CHALLENGE Handler (CVE-2026-34183) * openssl: NULL pointer dereference in QUIC server initial packet handling (CVE-2026-42764) * openssl: Possible NULL Dereference in Password-Based CMS Decryption (CVE-2026-42766) * openssl: NULL Pointer Dereference in CRMF EncryptedValue Decryption (CVE-2026-42767) * openssl: Multi-RecipientInfo Bleichenbacher Oracle in CMS_decrypt() and PKCS7_decrypt() (CVE-2026-42768) * openssl: Trust-Anchor Substitution via cert/issuer Typo in CMP rootCaKeyUpdate (CVE-2026-42769) * openssl: FFC-DH Peer Validation Uses Attacker-Supplied q (CVE-2026-42770) * openssl: AES-OCB IV Ignored on EVP_Cipher() Path (CVE-2026-45445) * openssl: Incorrect Tag…

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

Issue Summary: The PKCS#12 file processing fails to perform sufficient input validation for files that use Password-Based Message Authentication Code 1 (PBMAC1) integrity mechanism allowing a certificate and private key forgery.

Impact Summary: An attacker impersonating a user can cause a service reading PKCS#12 files to accept forged certificates and private keys with a 1 in 256 probability.

If a service accepting PKCS#12 files is using passwords for authenticating the received files, the attacker can create unencrypted PKCS#12 files that use PBMAC1 authentication that specifies an HMAC key of only one byte, allowing them to craft a file that will be accepted with a 1 in 256 probability. That would then cause the service to accept a certificate and private key controlled by the attacker.

The FIPS modules are not affected by this issue, as the affected code is outside the OpenSSL FIPS module boundary.

Issue Summary: The PKCS#12 file processing fails to perform sufficient input validation for files that use Password-Based Message Authentication Code 1 (PBMAC1) integrity mechanism allowing a certificate and private key forgery.

Impact Summary: An attacker impersonating a user can cause a service reading PKCS#12 files to accept forged certificates and private keys with a 1 in 256 probability.

If a service accepting PKCS#12 files is using passwords for authenticating the received files, the attacker can create unencrypted PKCS#12 files that use PBMAC1 authentication that specifies an HMAC key of only one byte, allowing them to craft a file that will be accepted with a 1 in 256 probability. That would then cause the service to accept a certificate and private key controlled by the attacker.

The FIPS modules are not affected by this issue, as the affected code is outside the OpenSSL FIPS module boundary.

libopenssl-3-devel-3.5.3-8.1 on GA media

gnutls: gnutls: Security bypass allows acceptance of revoked server certificates via crafted OCSP response gnutls: GnuTLS: Policy bypass due to case-sensitive nameConstraints comparison glibc: glibc: Denial of Service via iconv() function with specific character sets glibc: glibc: Incorrect DNS response parsing via crafted DNS server response glibc: glibc: Invalid DNS hostname returned via gethostbyaddr functions gnutls: gnutls: Information disclosure via heap overread in RSA key exchange gnutls: gnutls: Information disclosure via timing side-channel in PKCS#7 padding removal openssl: OpenSSL: Heap buffer overflow due to signed integer overflow in Unicode output sizing openssl: OpenSSL: Denial of Service due to heap out-of-bounds read in CMS password-based decryption openssl: OpenSSL: Denial of Service due to NULL pointer dereference in CMS EnvelopedData processing gnutls: GnuTLS: Denial of Service via DTLS zero-length fragment gnutls: GnuTLS: Denial of Service via heap buffer overflow in DTLS handshake fragment reassembly openssl: OpenSSL: Heap buffer over-read in ASN.1 decoding can lead to denial of service or information disclosure. openssl: PKCS#12 Files with PBMAC1 Are Accepted with Short HMAC Keys openssl: CMS AuthEnvelopedData Processing May Accept Forged Messages openssl: Unbounded Memory Growth in the QUIC PATH_CHALLENGE Handler vim: Vim zip.vim plugin: Arbitrary file overwrite via path traversal bypass gnutls: gnutls: Denial of Service via DTLS packet reordering vu…

Affected: Rocky Linux:10: openssl

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: Heap buffer overflow due to signed integer overflow in Unicode output sizing (CVE-2026-7383)

* openssl: OpenSSL: Denial of Service due to heap out-of-bounds read in CMS password-based decryption (CVE-2026-9076)

* openssl: OpenSSL: Heap buffer over-read in ASN.1 decoding can lead to denial of service or information disclosure. (CVE-2026-34180)

* openssl: PKCS#12 Files with PBMAC1 Are Accepted with Short HMAC Keys (CVE-2026-34181)

* openssl: CMS AuthEnvelopedData Processing May Accept Forged Messages (CVE-2026-34182)

* openssl: Unbounded Memory Growth in the QUIC PATH_CHALLENGE Handler (CVE-2026-34183)

* openssl: NULL pointer dereference in QUIC server initial packet handling (CVE-2026-42764)

* openssl: Possible NULL Dereference in Password-Based CMS Decryption (CVE-2026-42766)

* openssl: NULL Pointer Dereference in CRMF EncryptedValue Decryption (CVE-2026-42767)

* openssl: Multi-RecipientInfo Bleichenbacher Oracle in CMS_decrypt() and PKCS7_decrypt() (CVE-2026-42768)

* openssl: Trust-Anchor Substitution via cert/issuer Typo in CMP rootCaKeyUpdate (CVE-2026-42769)

* openssl: FFC-DH Peer Validation Uses Attacker-Supplied q (CVE-2026-42770)

* openssl: AES-OCB IV Ignored on EVP_Cipher() Path (CVE-2026-45445)

* openssl: Incorrect Tag Processing for Empt…

Security update for openssl-3

Affected: Ubuntu:Pro:22.04:LTS: nodejs, Ubuntu:25.10: edk2, Ubuntu:25.10: openssl, Ubuntu:26.04:LTS: edk2, Ubuntu:26.04:LTS: edk2-hwe, Ubuntu:26.04:LTS: openssl

Issue Summary: The PKCS#12 file processing fails to perform sufficient input validation for files that use Password-Based Message Authentication Code 1 (PBMAC1) integrity mechanism allowing a certificate and private key forgery. Impact Summary: An attacker impersonating a user can cause a service reading PKCS#12 files to accept forged certificates and private keys with a 1 in 256 probability. If a service accepting PKCS#12 files is using passwords for authenticating the received files, the attacker can create unencrypted PKCS#12 files that use PBMAC1 authentication that specifies an HMAC key of only one byte, allowing them to craft a file that will be accepted with a 1 in 256 probability. That would then cause the service to accept a certificate and private key controlled by the attacker. The FIPS modules are not affected by this issue, as the affected code is outside the OpenSSL FIPS module boundary.

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