CVE-2024-50382

Botan is a BSD-licensed crypto library written in C++. It provides a wide variety of basic cryptographic algorithms, X.509 certificates and CRLs, PKCS #10 certificate requests, a filter/pipe message processing system, and a wide variety of other features, all written in portable C++. The API reference, tutorial, and examples may help impart the flavor of the library. This is the current stable release branch 2.x of Botan.

Security Fix(es):

Botan before 3.6.0, when certain LLVM versions are used, has compiler-induced secret-dependent control flow in lib/utils/ghash/ghash.cpp in GHASH in AES-GCM. There is a branch instead of an XOR with carry. This was observed for Clang in LLVM 15 on RISC-V.(CVE-2024-50382)

Botan is a BSD-licensed crypto library written in C++. It provides a wide variety of basic cryptographic algorithms, X.509 certificates and CRLs, PKCS #10 certificate requests, a filter/pipe message processing system, and a wide variety of other features, all written in portable C++. The API reference, tutorial, and examples may help impart the flavor of the library. This is the current stable release branch 2.x of Botan.

Security Fix(es):

Botan before 3.6.0, when certain LLVM versions are used, has compiler-induced secret-dependent control flow in lib/utils/ghash/ghash.cpp in GHASH in AES-GCM. There is a branch instead of an XOR with carry. This was observed for Clang in LLVM 15 on RISC-V.(CVE-2024-50382)

Botan is a BSD-licensed crypto library written in C++. It provides a wide variety of basic cryptographic algorithms, X.509 certificates and CRLs, PKCS #10 certificate requests, a filter/pipe message processing system, and a wide variety of other features, all written in portable C++. The API reference, tutorial, and examples may help impart the flavor of the library. This is the current stable release branch 2.x of Botan.

Security Fix(es):

Botan before 3.6.0, when certain LLVM versions are used, has compiler-induced secret-dependent control flow in lib/utils/ghash/ghash.cpp in GHASH in AES-GCM. There is a branch instead of an XOR with carry. This was observed for Clang in LLVM 15 on RISC-V.(CVE-2024-50382)

Botan before 3.6.0, when certain LLVM versions are used, has compiler-induced secret-dependent control flow in lib/utils/ghash/ghash.cpp in GHASH in AES-GCM. There is a branch instead of an XOR with carry. This was observed for Clang in LLVM 15 on RISC-V.

Botan before 3.6.0, when certain LLVM versions are used, has compiler-induced secret-dependent control flow in lib/utils/ghash/ghash.cpp in GHASH in AES-GCM. There is a branch instead of an XOR with carry. This was observed for Clang in LLVM 15 on RISC-V.

Botan before 3.6.0, when certain LLVM versions are used, has compiler-induced secret-dependent control flow in lib/utils/ghash/ghash.cpp in GHASH in AES-GCM. There is a branch instead of an XOR with carry. This was observed for Clang in LLVM 15 on RISC-V.

This update for Botan fixes the following issues:

• Fixed CVE-2024-50382, CVE-2024-50383 - various compiler-induced side channel in GHASH when certain LLVM/GCC versions are used to compile Botan.

These are all security issues fixed in the Botan-3.6.0-1.1 package on the GA media of openSUSE Tumbleweed.

Root has patched CVE-2024-50382 in the botan package for Root:Alpine:3.19. Multiple fixed versions available.

Root has patched CVE-2024-50382 in the botan package for Root:Alpine:3.20. Multiple fixed versions available.

It was discovered that Botan could have compiler dependent operations induced under certain circumstances. An attacker could possibly use this issue to cause undefined behavior. (CVE-2024-50382, CVE-2024-50383)

Bing Shi discovered that Botan did not limit the size of certain inputs when checking primality and name constraints. An attacker could possibly use this issue to cause a denial of service. (CVE-2024-34702, CVE-2024-34703)

It was discovered that Botan did not correctly handle conflicting name constraints. An attacker could possibly use this issue to bypass authentication. (CVE-2024-39312)