`MaybeUninit` misuse in `simd-json-derive`

An invalid use of MaybeUninit::uninit.assumeinit in simd-json-derive's derive macro can cause undefined behavior. The original code used MaybeUninit to avoid initialisation of the struct and then set the fields using ptr::write. The undefined behavior triggered by this misuse of MaybeUninit can...

PT-2023-36100 · Unknown · Simd-Json-Derive

Name of the Vulnerable Software and Affected Versions: simd-json-derive versions prior to 0.12.0 Description: The issue arises from an invalid use of MaybeUninit::uninit.assume init in the derive macro of simd-json-derive, leading to undefined behavior. This misuse can cause invalid memory access...

imagemagick:crop_fuzzer: Index-out-of-bounds in LibRaw::ahd_interpolate_r_and_b_in_rgb_and_convert_to_cielab

Project: https://github.com/imagemagick/imagemagick.git Detailed Report: https://oss-fuzz.com/testcase?key=6364110226587648 Project: imagemagick Fuzzing Engine: libFuzzer Fuzz Target: cropfuzzer Job Type: libfuzzerubsanimagemagick Platform Id: linux Crash Type: Index-out-of-bounds Crash Address:...

kernel: fbcon: shift-out-of-bounds in fbcon_set_font()

A flaw was found in the Framebuffer Console fbcon in the Linux Kernel. When providing a font-width and font-height greater than 32 to the fbconsetfont, since there are no checks in place, a shift-out-of-bounds occurs, leading to undefined behavior and possible denial of service...

Medium: ImageMagick

Issue Overview: A vulnerability was found in ImageMagick. This issue occurs as an undefined behavior, casting double to sizet in svg, mvg and other coders. CVE-2023-34151 Affected Packages: ImageMagick Issue Correction: Run yum update ImageMagick or yum update --advisory ALAS-2023-1844 to update...

ffmpeg:ffmpeg_AV_CODEC_ID_FLIC_fuzzer: Null-dereference READ in ubsan_GetStackTrace

Detailed Report: https://oss-fuzz.com/testcase?key=5558602804625408 Project: ffmpeg Fuzzing Engine: libFuzzer Fuzz Target: ffmpegAVCODECIDFLICfuzzer Job Type: libfuzzerubsanffmpeg Platform Id: linux Crash Type: Null-dereference READ Crash Address: 0x000000000000 Crash State: ubsanGetStackTrace...

Important: ecs-service-connect-agent

Issue Overview: Wasmtime is a standalone runtime for WebAssembly. Prior to versions 6.0.2, 7.0.1, and 8.0.1, Wasmtime's implementation of managing per-instance state, such as tables and memories, contains LLVM-level undefined behavior. This undefined behavior was found to cause runtime-level issu...

Important: ecs-service-connect-agent

Issue Overview: Wasmtime is a standalone runtime for WebAssembly. Prior to versions 6.0.2, 7.0.1, and 8.0.1, Wasmtime's implementation of managing per-instance state, such as tables and memories, contains LLVM-level undefined behavior. This undefined behavior was found to cause runtime-level issu...

CVE-2023-40018

FreeSWITCH is a Software Defined Telecom Stack enabling the digital transformation from proprietary telecom switches to a software implementation that runs on any commodity hardware. Prior to version 1.10.10, FreeSWITCH allows remote users to trigger out of bounds write by offering an ICE candida...

Undefined Behavior for Input to API in Mutt

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Undefined Behavior for Input to API in Mutt

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Users vulnerable to unaligned read of `*const *const c_char` pointer

Affected versions dereference a potentially unaligned pointer. The pointer is commonly unaligned in practice, resulting in undefined behavior. In some build modes, this is observable as a panic followed by abort. In other build modes the UB may manifest in some other way, including the possibilit...

GHSA-JCR6-4FRQ-9GJJ Users vulnerable to unaligned read of `*const *const c_char` pointer

Affected versions dereference a potentially unaligned pointer. The pointer is commonly unaligned in practice, resulting in undefined behavior. In some build modes, this is observable as a panic followed by abort. In other build modes the UB may manifest in some other way, including the possibilit...

Unaligned read of `*const *const c_char` pointer

Affected versions dereference a potentially unaligned pointer. The pointer is commonly unaligned in practice, resulting in undefined behavior. In some build modes, this is observable as a panic followed by abort. In other build modes the UB may manifest in some other way, including the possibilit...

CVE-2023-4874: Undefined Behavior for Input to API

Null pointer dereference when viewing a specially crafted email in Mutt 1.5.2 2.2.12...

Medium: ImageMagick

Issue Overview: A vulnerability was found in ImageMagick. This issue occurs as an undefined behavior, casting double to sizet in svg, mvg and other coders. CVE-2023-34151 Affected Packages: ImageMagick Issue Correction: Run dnf update ImageMagick --releasever 2023.1.20230825 or dnf update...

electionToTimestamp() might return incorrect timestamps depending on the day of the first election

Lines of code Vulnerability details Bug Description For nominee elections, election dates are determined using the the electionToTimestamp function in the SecurityCouncilNomineeElectionGovernorTiming module. When SecurityCouncilNomineeElectionGovernor is initialized after deployment, the first...

GHSA-F9G6-FP84-FV92 impl `FromMdbValue` for bool is unsound

The implementation of FromMdbValue has several unsoundness issues. First of all, it allows to reinterpret arbitrary bytes as a bool and could make undefined behavior happen with safe function. Secondly, it allows transmuting pointer without taking memory layout into consideration. The details of...

CLSA-2023-1689259028 Fix CVE(s): CVE-2022-37452, CVE-2022-32546, CVE-2023-34151

SECURITY UPDATE: undefined behaviors of casting double to sizet in svg, mvg and other coders recurring bugs of CVE-2022-32546 - debian/patches/CVE-2023-34151.patch: properly cast double to sizet - CVE-2022-37452...

PT-2025-38030

Name of the Vulnerable Software and Affected Versions Linux kernel versions prior to 6.1.30-syzkaller Description A flaw was discovered in the Linux kernel related to the interaction between the net dev start xmit trace event and the skb transport offset function. Specifically, the issue arises...