CVE-2025-0677 Grub2: ufs: integer overflow may lead to heap based out-of-bounds write when handling symlinks

A flaw was found in grub2. When performing a symlink lookup, the grub's UFS module checks the inode's data size to allocate the internal buffer to read the file content, however, it fails to check if the symlink data size has overflown. When this occurs, grubmalloc may be called with a smaller...

CVE-2025-0686

A flaw was found in grub2. When performing a symlink lookup from a romfs filesystem, grub's romfs filesystem module uses user-controlled parameters from the filesystem geometry to determine the internal buffer size, however, it improperly checks for integer overflows. A maliciously crafted...

CVE-2025-0677

A flaw was found in grub2. When performing a symlink lookup, the grub's UFS module checks the inode's data size to allocate the internal buffer to read the file content, however, it fails to check if the symlink data size has overflown. When this occurs, grubmalloc may be called with a smaller...

UBUNTU-CVE-2025-0686

A flaw was found in grub2. When performing a symlink lookup from a romfs filesystem, grub's romfs filesystem module uses user-controlled parameters from the filesystem geometry to determine the internal buffer size, however, it improperly checks for integer overflows. A maliciously crafted...

Astra Linux – Vulnerability in Linux 6.1

In the Linux kernel, the following vulnerabilities have been resolved: qibfs: fixed the dentry leak. The simplerecursiveremoval function removes the pinning references to all positive values in the subtree. In cases where its argument is kept alive solely through pinning, that’s exactly the right...

Astra Linux – Vulnerability in Linux 6.1

In the Linux kernel, the following vulnerability has been resolved: btrfs: Do not trigger BUGON due to ENOMEM from btrfslookupextentinfo in walkdownproc. We have properly handled errors here. ENOMEM is not fatal; we return the error instead...

Astra Linux – Vulnerability in Linux 6.1

In the Linux kernel, the following vulnerabilities have been resolved: cachefiles: Fixed the dentry leak in cachefilesopenfile. A dentry leak may occur when a lookup cookie and a cull operation are performed concurrently. P1 | P2 -----------------------------------------------------------...

Astra Linux – Vulnerability in Linux 6.1

In the Linux kernel, the following vulnerabilities have been resolved: bpf: Mark the bpf prog stack with kmsanunpoisonmemory in interpreter mode. syzbot reported uninitialized memory usage during maplookup,deleteelem. ========== BUG: KMSAN: uninitvalue in devmaplookupelem kernel/bpf/devmap.c:441...

Astra Linux – Vulnerability in Linux 6.1

In the Linux kernel, the following vulnerability has been resolved: ksmbd: fixed the race condition issue caused by session lookup and expiration. The session reference count was incremented within the lock during the lookup operation, thereby avoiding the race condition related to session...

Astra Linux – Vulnerability in Linux 6.1

In the Linux kernel, the following vulnerability has been resolved: ovl: Filtering invalid inodes with a missing lookup function. A check has been added to the ovldentryweird function to prevent the processing of directory inodes that lack the lookup function. This is important because such inode...

CVE-2025-24802

Plonky2 is a SNARK implementation based on techniques from PLONK and FRI. Lookup tables, whose length is not divisible by 26 = floornumroutedwires / 3 always include the 0 - 0 input-output pair. Thus a malicious prover can always prove that f0 = 0 for any lookup table f unless its length happens ...

The vulnerability of Fortinet FortiClient Windows security devices, related to the use of an insecure search path, allows attackers to execute arbitrary code.

The vulnerability of Fortinet FortiClient Windows protection devices is related to the use of an insecure lookup path. Exploiting this vulnerability allows attackers to execute arbitrary code...

CVE-2022-24847

GeoServer is an open source software server written in Java that allows users to share and edit geospatial data. The GeoServer security mechanism can perform an unchecked JNDI lookup, which in turn can be used to perform class deserialization and result in arbitrary code execution. The same can...

CVE-2022-24846

GeoWebCache is a tile caching server implemented in Java. The GeoWebCache disk quota mechanism can perform an unchecked JNDI lookup, which in turn can be used to perform class deserialization and result in arbitrary code execution. While in GeoWebCache the JNDI strings are provided via local...

AZL-56268 CVE-2025-21683 affecting package kernel for versions less than 5.15.180.1-1

In the Linux kernel, the following vulnerability has been resolved: bpf: Fix bpfskselectreuseport memory leak As pointed out in the original comment, lookup in sockmap can return a TCP ESTABLISHED socket. Such TCP socket may have had SOATTACHREUSEPORTEBPF set before it was ESTABLISHED. In other...

DEBIAN-CVE-2025-21683

In the Linux kernel, the following vulnerability has been resolved: bpf: Fix bpfskselectreuseport memory leak As pointed out in the original comment, lookup in sockmap can return a TCP ESTABLISHED socket. Such TCP socket may have had SOATTACHREUSEPORTEBPF set before it was ESTABLISHED. In other...

AZL-56333 CVE-2025-21683 affecting package kernel for versions less than 6.6.76.1-1

In the Linux kernel, the following vulnerability has been resolved: bpf: Fix bpfskselectreuseport memory leak As pointed out in the original comment, lookup in sockmap can return a TCP ESTABLISHED socket. Such TCP socket may have had SOATTACHREUSEPORTEBPF set before it was ESTABLISHED. In other...

UBUNTU-CVE-2025-21683

In the Linux kernel, the following vulnerability has been resolved: bpf: Fix bpfskselectreuseport memory leak As pointed out in the original comment, lookup in sockmap can return a TCP ESTABLISHED socket. Such TCP socket may have had SOATTACHREUSEPORTEBPF set before it was ESTABLISHED. In other...

CVE-2025-21683 bpf: Fix bpf_sk_select_reuseport() memory leak

In the Linux kernel, the following vulnerability has been resolved: bpf: Fix bpfskselectreuseport memory leak As pointed out in the original comment, lookup in sockmap can return a TCP ESTABLISHED socket. Such TCP socket may have had SOATTACHREUSEPORTEBPF set before it was ESTABLISHED. In other...

Linux kernel 安全漏洞

Linux kernel is the kernel used by Linux, the open source operating system of the Linux Foundation in the United States. A security vulnerability exists in the Linux kernel that stems from a memory leak in the bpfskselectreuseport function that does not properly handle socket reference counts for...