#linux

VMware vRealize Log Insights versions 8.x contain multiple vulnerabilities, such as directory traversal, broken access control, deserialization, and information disclosure. When chained together, these vulnerabilities allow a remote, unauthenticated attacker to execute arbitrary commands on the underlying operating system as the root user. This Metasploit module achieves code execution via triggering a RemotePakDownloadCommand command via the exposed thrift service after obtaining the node token by calling a GetConfigRequest thrift command. After the download, it will trigger a PakUpgradeCommand for processing the specially crafted PAK archive, which then will place the JSP payload under a certain API endpoint (pre-authenticated) location upon extraction for gaining remote code execution. Successfully tested against version 8.0.2.

A stack based out-of-bounds write flaw was found in the netfilter subsystem in the Linux kernel. If the expression length is a multiple of 4 (register size), the `nft_exthdr_eval` family of functions writes 4 NULL bytes past the end of the `regs` argument, leading to stack corruption and potential information disclosure or a denial of service.

Splunk Enterprise versions below 9.0.5, 8.2.11, and 8.1.14 allows low-privileged users who hold a role with edit_user capability assigned to it the ability to escalate their privileges to that of the admin user by providing specially crafted web requests.

Debian Linux Security Advisory 5494-1 - Several NULL pointer dereference flaws were discovered in Mutt, a text-based mailreader supporting MIME, GPG, PGP and threading, which may result in denial of service (application crash) when viewing a specially crafted email or when composing from a specially crafted draft message.

Red Hat Security Advisory 2023-5042-01 - FLAC stands for Free Lossless Audio Codec. FLAC is similar to Ogg Vorbis, but lossless. The FLAC project consists of the stream format, reference encoders and decoders in library form, a command-line program to encode and decode FLAC files, and a command-line metadata editor for FLAC files. Issues addressed include a code execution vulnerability.

Ubuntu Security Notice 6338-2 - Zi Fan Tan discovered that the binder IPC implementation in the Linux kernel contained a use-after-free vulnerability. A local attacker could use this to cause a denial of service or possibly execute arbitrary code. It was discovered that a race condition existed in the f2fs file system in the Linux kernel, leading to a null pointer dereference vulnerability. An attacker could use this to construct a malicious f2fs image that, when mounted and operated on, could cause a denial of service.

Debian Linux Security Advisory 5492-1 - Several vulnerabilities have been discovered in the Linux kernel that may lead to a privilege escalation, denial of service or information leaks.

Ubuntu Security Notice 6342-2 - Tavis Ormandy discovered that some AMD processors did not properly handle speculative execution of certain vector register instructions. A local attacker could use this to expose sensitive information. Zheng Zhang discovered that the device-mapper implementation in the Linux kernel did not properly handle locking during table_clear operations. A local attacker could use this to cause a denial of service.

The Linux 6.4 kernel suffers from a use-after-free condition due to per-VMA locks that introduce a race between page fault and MREMAP_DONTUNMAP.

Red Hat Security Advisory 2023-5043-01 - FLAC stands for Free Lossless Audio Codec. FLAC is similar to Ogg Vorbis, but lossless. The FLAC project consists of the stream format, reference encoders and decoders in library form, a command-line program to encode and decode FLAC files, and a command-line metadata editor for FLAC files. Issues addressed include a code execution vulnerability.