Headline
CVE-2022-2097
AES OCB mode for 32-bit x86 platforms using the AES-NI assembly optimised implementation will not encrypt the entirety of the data under some circumstances. This could reveal sixteen bytes of data that was preexisting in the memory that wasn’t written. In the special case of “in place” encryption, sixteen bytes of the plaintext would be revealed. Since OpenSSL does not support OCB based cipher suites for TLS and DTLS, they are both unaffected. Fixed in OpenSSL 3.0.5 (Affected 3.0.0-3.0.4). Fixed in OpenSSL 1.1.1q (Affected 1.1.1-1.1.1p).
OpenSSL Security Advisory [5 July 2022] ======================================= Heap memory corruption with RSA private key operation (CVE-2022-2274) ===================================================================== Severity: High The OpenSSL 3.0.4 release introduced a serious bug in the RSA implementation for X86_64 CPUs supporting the AVX512IFMA instructions. This issue makes the RSA implementation with 2048 bit private keys incorrect on such machines and memory corruption will happen during the computation. As a consequence of the memory corruption an attacker may be able to trigger a remote code execution on the machine performing the computation. SSL/TLS servers or other servers using 2048 bit RSA private keys running on machines supporting AVX512IFMA instructions of the X86_64 architecture are affected by this issue. Note that on a vulnerable machine, proper testing of OpenSSL would fail and should be noticed before deployment. Users of the OpenSSL 3.0.4 version should upgrade to OpenSSL 3.0.5. OpenSSL 1.1.1 and 1.0.2 are not affected by this issue. This issue was reported to OpenSSL on 22nd June 2022 by Xi Ruoyao. The fix was developed by Xi Ruoyao. References ========== URL for this Security Advisory: https://www.openssl.org/news/secadv/20220705.txt Note: the online version of the advisory may be updated with additional details over time. For details of OpenSSL severity classifications please see: https://www.openssl.org/policies/secpolicy.html AES OCB fails to encrypt some bytes (CVE-2022-2097) =================================================== Severity: MODERATE AES OCB mode for 32-bit x86 platforms using the AES-NI assembly optimised implementation will not encrypt the entirety of the data under some circumstances. This could reveal sixteen bytes of data that was preexisting in the memory that wasn’t written. In the special case of “in place” encryption, sixteen bytes of the plaintext would be revealed. Since OpenSSL does not support OCB based cipher suites for TLS and DTLS, they are both unaffected. This issue affects versions 1.1.1 and 3.0. It was addressed in the releases of 1.1.1q and 3.0.5 on the 5th July 2022. OpenSSL 1.1.1 users should upgrade to 1.1.1q OpenSSL 3.0 users should upgrade to 3.0.5 This issue was reported to OpenSSL on the 15th June 2022 by Alex Chernyakhovsky from Google. The fix was developed by Alex Chernyakhovsky, David Benjamin and Alejandro Sedeño from Google.
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All security issues have been patched – update now
AES OCB mode for 32-bit x86 platforms using the AES-NI assembly optimised implementation will not encrypt the entirety of the data under some circumstances. This could reveal sixteen bytes of data that was preexisting in the memory that wasn't written. In the special case of "in place" encryption, sixteen bytes of the plaintext would be revealed. Since OpenSSL does not support OCB based cipher suites for TLS and DTLS, they are both unaffected.
Ubuntu Security Notice 5502-1 - Alex Chernyakhovsky discovered that OpenSSL incorrectly handled AES OCB mode when using the AES-NI assembly optimized implementation on 32-bit x86 platforms. A remote attacker could possibly use this issue to obtain sensitive information.
The maintainers of the OpenSSL project have released patches to address a high-severity bug in the cryptographic library that could potentially lead to remote code execution under certain scenarios. The issue, now assigned the identifier CVE-2022-2274, has been described as a case of heap memory corruption with RSA private key operation that was introduced in OpenSSL version 3.0.4 released on
Fixes are available, update now
The OpenSSL 3.0.4 release introduced a serious bug in the RSA implementation for X86_64 CPUs supporting the AVX512IFMA instructions. This issue makes the RSA implementation with 2048 bit private keys incorrect on such machines and memory corruption will happen during the computation. As a consequence of the memory corruption an attacker may be able to trigger a remote code execution on the machine performing the computation. SSL/TLS servers or other servers using 2048 bit RSA private keys running on machines supporting AVX512IFMA instructions of the X86_64 architecture are affected by this issue.
The OpenSSL 3.0.4 release introduced a serious bug in the RSA implementation for X86_64 CPUs supporting the AVX512IFMA instructions. This issue makes the RSA implementation with 2048 bit private keys incorrect on such machines and memory corruption will happen during the computation. As a consequence of the memory corruption an attacker may be able to trigger a remote code execution on the machine performing the computation. SSL/TLS servers or other servers using 2048 bit RSA private keys running on machines supporting AVX512IFMA instructions of the X86_64 architecture are affected by this issue.