#buffer_overflow

By Deeba Ahmed Quarkslab Discovers "PixieFail" Vulnerabilities: Critical Flaws in Open Source UEFI Code Require Immediate Patching. This is a post from HackRead.com Read the original post: Critical “PixieFail” Flaws Expose Millions of Devices to Cyberattacks

An issue was discovered in Contiki-NG tinyDTLS versions through 2018-08-30. A buffer over-read exists in the dtls_sha256_update function. This bug allows remote attackers to cause a denial of service (crash) and possibly read sensitive information by sending a malformed packet with an over-large fragment length field, due to servers incorrectly handling malformed packets.

An issue was discovered in Contiki-NG tinyDTLS versions through 2018-08-30. Incorrect handling of over-large packets in dtls_ccm_decrypt_message() causes a buffer over-read that can expose sensitive information.

Multiple security vulnerabilities have been disclosed in the TCP/IP network protocol stack of an open-source reference implementation of the Unified Extensible Firmware Interface (UEFI) specification used widely in modern computers. Collectively dubbed PixieFail by Quarkslab, the nine issues reside in the TianoCore EFI Development Kit II (EDK II) and could be exploited to

Ubuntu Security Notice 6586-1 - It was discovered that FreeImage incorrectly handled certain memory operations. If a user were tricked into opening a crafted TIFF file, a remote attacker could use this issue to cause a heap buffer overflow, resulting in a denial of service attack. This issue only affected Ubuntu 16.04 LTS and Ubuntu 20.04 LTS. It was discovered that FreeImage incorrectly processed images under certain circumstances. If a user were tricked into opening a crafted TIFF file, a remote attacker could possibly use this issue to cause a stack exhaustion condition, resulting in a denial of service attack. This issue only affected Ubuntu 16.04 LTS and Ubuntu 20.04 LTS.

This archive contains proof of concepts to trigger the 7 vulnerabilities in Tianocore's EDK II open source implementation of the UEFI specification. Issues include an integer underflow, buffer overflows, infinite loops, and an out of bounds read.

Gentoo Linux Security Advisory 202401-22 - Multiple vulnerabilities have been discovered in libspf2, the worst of which can lead to remote code execution. Versions greater than or equal to 1.2.11 are affected.

Gentoo Linux Security Advisory 202401-20 - A vulnerability has been found in QPDF which can lead to a heap-based buffer overflow. Versions greater than or equal to 10.1.0 are affected.

Ubuntu Security Notice 6581-1 - It was discovered that GNU binutils was not properly performing bounds checks in several functions, which could lead to a buffer overflow. An attacker could possibly use this issue to cause a denial of service, expose sensitive information or execute arbitrary code. It was discovered that GNU binutils incorrectly handled memory management operations in several of its functions, which could lead to excessive memory consumption due to memory leaks. An attacker could possibly use these issues to cause a denial of service.

Red Hat Security Advisory 2024-0253-03 - An update for sqlite is now available for Red Hat Enterprise Linux 8. Issues addressed include a buffer overflow vulnerability.