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...

CVE-2026-63072

🔐 CVE-2026-63072 — OpenSSL CMS Heap Buffer Overflow A technical analysis ofCVE-2026-63072 , a heap-based out-of-bounds write affecting OpenSSL's CMS key-unwrapping functionality. 📌 Overview CVE-2026-63072 is a heap-based buffer overflow vulnerability in OpenSSL's CMS Cryptographic Message Syntax...

Rocky Linux 10.2 [CIQ] Security Update: php / php-bcmath / php-bcmath-debuginfo / php-cli / etc (crlsa-2026_48170)

The Rocky Linux 10.2 host has packages installed that are affected by a vulnerability as referenced in the CIQ crlsa-202648170 advisory. php: PHP OpenSSL extension: Denial of Service due to buffer allocation flaw in AES-WRAP-PAD CVE-2026-14355 Bug Fixes and Enhancements: Rebase PHP to 8.3.32 for...

Rocky Linux 9 [CIQ] Security Update: apcu-panel / php / php-bcmath / php-bcmath-debuginfo / php-cli / etc (crlsa-2026_48197)

The Rocky Linux 9 host has packages installed that are affected by a vulnerability as referenced in the CIQ crlsa-202648197 advisory. php: PHP OpenSSL extension: Denial of Service due to buffer allocation flaw in AES-WRAP-PAD CVE-2026-14355 Bug Fixes and Enhancements: Rebase PHP to 8.3.32 for...

Rocky Linux 8 [CIQ] Security Update: apcu-panel / libzip / libzip-debuginfo / libzip-debugsource / etc (crlsa-2026_47750)

The Rocky Linux 8 host has packages installed that are affected by a vulnerability as referenced in the CIQ crlsa-202647750 advisory. php: PHP OpenSSL extension: Denial of Service due to buffer allocation flaw in AES-WRAP-PAD CVE-2026-14355 Bug Fixes and Enhancements: Backport fix for...

Rocky Linux 8 [CIQ] Security Update: apcu-panel / libzip / libzip-debuginfo / libzip-debugsource / etc (crlsa-2026_47749)

The Rocky Linux 8 host has packages installed that are affected by a vulnerability as referenced in the CIQ crlsa-202647749 advisory. php: PHP OpenSSL extension: Denial of Service due to buffer allocation flaw in AES-WRAP-PAD CVE-2026-14355 Bug Fixes and Enhancements: Rebase PHP to 8.2.32 for...

Rocky Linux 9 [CIQ] Security Update: apcu-panel / php / php-bcmath / php-bcmath-debuginfo / php-cli / etc (crlsa-2026_40416)

The Rocky Linux 9 host has packages installed that are affected by a vulnerability as referenced in the CIQ crlsa-202640416 advisory. php: PHP OpenSSL extension: Denial of Service due to buffer allocation flaw in AES-WRAP-PAD CVE-2026-14355 Bug Fixes and Enhancements: Rebase PHP to 8.2.32 for...

Rocky Linux 10.2 [CIQ] Security Update: php8.4 / php8.4-bcmath / php8.4-bcmath-debuginfo / php8.4-cli / etc (crlsa-2026_49914)

The Rocky Linux 10.2 host has packages installed that are affected by a vulnerability as referenced in the CIQ crlsa-202649914 advisory. php: PHP OpenSSL extension: Denial of Service due to buffer allocation flaw in AES-WRAP-PAD CVE-2026-14355 Bug Fixes and Enhancements: Rebase PHP to 8.4.23 for...

Rocky Linux 9.6 [TuxCare] Security Update: php / php-bcmath / php-cli / php-common / php-dba / php-dbg / etc (ALMALINUX9.6:CLSA-2026:1790263653)

The Rocky Linux 9.6 host has packages installed that are affected by a vulnerability as referenced in the TuxCare ALMALINUX9.6:CLSA-2026:1790263653 advisory. - In PHP versions 8.2. before 8.2.32, 8.3. before 8.3.32, 8.4. before 8.4.23, 8.5. before 8.5.8, the AES-WRAP-PAD algorithm implementation ...

AlmaLinux 9.6 [TuxCare] Security Update: php / php-bcmath / php-cli / php-common / php-dba / php-dbg / etc (ALMALINUX9.6:CLSA-2026:1790263653)

The AlmaLinux 9.6 host has packages installed that are affected by a vulnerability as referenced in the TuxCare ALMALINUX9.6:CLSA-2026:1790263653 advisory. - In PHP versions 8.2. before 8.2.32, 8.3. before 8.3.32, 8.4. before 8.4.23, 8.5. before 8.5.8, the AES-WRAP-PAD algorithm implementation in...

OESA-2026-3858 edk2 security update

EDK II is a modern, feature-rich, cross-platform firmware development environment for the UEFI and PI specifications. Security Fixes: Issue summary: OpenSSL CMS decryption sizes the key-unwrap output buffer based on querying the unwrapped key size, but the AES-WRAP-PAD unwrap primitive can write...

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...

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...

php: ext/openssl: memory corruption in openssl_encrypt with AES-WRAP-PAD

A flaw was found in the OpenSSL extension of PHP. The AES-WRAP-PAD algorithm implementation uses the size of the plaintext length without accounting for the RFC 5649 expansion to allocate the output buffer for the AES key-wrap-with-padding operation. This may lead to an undersized memory allocati...

SUSE CVE-2026-63072

Issue summary: OpenSSL CMS decryption sizes the key-unwrap output buffer based on querying the unwrapped key size, but the AES-WRAP-PAD unwrap primitive can write and cleanse more bytes than that query reports, causing an 8-byte out-of-bounds heap write. Impact summary: An attacker who supplies a...

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...

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...

CVE-2026-63072

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...

Out-of-bounds Write

Overview Affected versions of this package are vulnerable to Out-of-bounds Write due to buffer sizing in cmskekcipher in crypto/cms/cmskari.c and crypto/cms/cmskemri.c. An attacker can corrupt the heap and trigger a denial of service by supplying a crafted CMS message that is decrypted with...

AZL-97890 CVE-2026-63072 affecting package edk2 for versions less than 20240524git3e722403cd16-20

Issue summary: OpenSSL CMS decryption sizes the key-unwrap output buffer based on querying the unwrapped key size, but the AES-WRAP-PAD unwrap primitive can write and cleanse more bytes than that query reports, causing an 8-byte out-of-bounds heap write. Impact summary: An attacker who supplies a...