fuzzing

libfuzzer-workshop Materials of "Modern fuzzing of C/C++ Projects" workshop. The first version of the workshop had been presented at ZeroNights'16 security conference. Disclaimer This workshop was originally developed in 2016. As of today 2021 and beyond, the practical side of the workshop might ...

Astra Linux – Vulnerability in Linux 5.15

In the Linux kernel, the following vulnerability has been resolved: Security issue: Restrict CONFIGZEROCALLUSEDREGS to GCC or Clang version 15.0.6 or later. A bug in Clang’s implementation of -fzero-call-used-regs can lead to NULL pointer dereferencing see the links above the check for more...

SUSE CVE-2022-50812

In the Linux kernel, the following vulnerability has been resolved: security: Restrict CONFIGZEROCALLUSEDREGS to gcc or clang 15.0.6 A bad bug in clang's implementation of -fzero-call-used-regs can result in NULL pointer dereferences see the links above the check for more information. Restrict...

CVE-2022-50812

The CVE-2022-50812 issue affects the Linux kernel, arising from a bug in clang’s -fzero-call-used-regs implementation. The vulnerability can cause NULL pointer dereferences. The fix is to restrict CONFIG_ZERO_CALL_USED_REGS to a supported GCC version or a clang newer than 15.0.6 (and to cover the...

CVE-2022-50812

In the Linux kernel, the following vulnerability has been resolved: security: Restrict CONFIGZEROCALLUSEDREGS to gcc or clang 15.0.6 A bad bug in clang's implementation of -fzero-call-used-regs can result in NULL pointer dereferences see the links above the check for more information. Restrict...

Unity Linux 20.1070e Security Update: kernel (UTSA-2025-990081)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2025-990081 advisory. In the Linux kernel, the following vulnerability has been resolved: ipvs: fix UB due to uninitialized stack access in ipvsprotocolinit Under certain kernel...

Unity Linux 20.1070a Security Update: kernel (UTSA-2025-986466)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2025-986466 advisory. In the Linux kernel, the following vulnerability has been resolved: ALSA: seq: Fix function prototype mismatch in sndseqexpandvarevent With clang's kernel control fl...

FreeBSD : liboqs -- Secret-dependent branching in HQC (aeac223e-60e1-11f0-8baa-8447094a420f)

The version of FreeBSD installed on the remote host is prior to tested version. It is, therefore, affected by a vulnerability as referenced in the aeac223e-60e1-11f0-8baa-8447094a420f advisory. The OpenQuantumSafe project reports: Secret-dependent branching in HQC reference implementation when...

OESA-2025-1629 kernel security update

The Linux Kernel, the operating system core itself. Security Fixes: In the Linux kernel, the following vulnerability has been resolved: ARM: 9410/1: vfp: Use asm volatile in fmrx/fmxr macros Floating point instructions in userspace can crash some arm kernels built with clang/LLD 17.0.6: BUG:...

llvm-toolset:rhel8 bug fix and enhancement update

An update is available for lld, compiler-rt, module.lld, lldb, python-lit, module.python-lit, module.lldb, llvm, libomp, module.compiler-rt, clang, module.libomp, module.llvm, module.clang. This update affects Rocky Linux 8. A Common Vulnerability Scoring System CVSS base score, which gives a...

SUSE CVE-2024-36405

liboqs is a C-language cryptographic library that provides implementations of post-quantum cryptography algorithms. A control-flow timing lean has been identified in the reference implementation of the Kyber key encapsulation mechanism when it is compiled with Clang 15-18 for -Os, -O1, and other...

CVE-2021-47126

In the Linux kernel, the following vulnerability has been resolved: ipv6: Fix KASAN: slab-out-of-bounds Read in fib6nhflushexceptions Reported by syzbot: HEAD commit: 90c911ad Merge tag 'fixes' of git://git.kernel.org/pub/scm.. git tree:...

Fedora: Security Advisory for libclc (FEDORA-2023-67f0f8d186)

The remote host is missing an update for the SPDX-FileCopyrightText: 2023 Greenbone AG Some text descriptions might be excerpted from a referenced sources, and are Copyright C by the respective right holders. SPDX-License-Identifier: GPL-2.0-only ifdescription...

[SECURITY] Fedora 39 Update: libclc-17.0.2-1.fc39

libclc is an open source, BSD licensed implementation of the library requirements of the OpenCL C programming language, as specified by the OpenCL 1.1 Specification. The following sections of the specification impose library requirements: 6.1: Supported Data Types 6.2.3: Explicit Conversions...

Moderate: Red Hat Security Advisory: llvm-toolset:rhel8 security update

An update for the llvm-toolset:rhel8 module is now available for Red Hat Enterprise Linux 8. Red Hat Product Security has rated this update as having a security impact of Moderate. A Common Vulnerability Scoring System CVSS base score, which gives a detailed severity rating, is available for each...

OSV-2020-1531 Segv on unknown address in clang::Sema::PerformImplicitConversion

OSS-Fuzz report: https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=19621 Crash type: Segv on unknown address Crash state: clang::Sema::PerformImplicitConversion clang::Sema::PerformImplicitConversion clang::Sema::PerformContextuallyConvertToBool...

OSV-2020-1426 Segv on unknown address in clang::CXXRecordDecl::data

OSS-Fuzz report: https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=19132 Crash type: Segv on unknown address Crash state: clang::CXXRecordDecl::data clang::Sema::FinalizeVarWithDestructor clang::Sema::ActOnBlockStmtExpr...