kernel: fget: check that the fd still exists after getting a ref to it

A read-after-free memory flaw was found in the Linux kernel's garbage collection for Unix domain socket file handlers in the way users call close and fget simultaneously and can potentially trigger a race condition. This flaw allows a local user to crash the system or escalate their privileges on...

kernel: fget: check that the fd still exists after getting a ref to it

A read-after-free memory flaw was found in the Linux kernel's garbage collection for Unix domain socket file handlers in the way users call close and fget simultaneously and can potentially trigger a race condition. This flaw allows a local user to crash the system or escalate their privileges on...

CVE-2022-23909

There is an unquoted service path in Sherpa Connector Service SherpaConnectorService.exe 2020.2.20328.2050. This might allow a local user to escalate privileges by creating a "C:\Program Files\Sherpa Software\Sherpa.exe" file...

CVE-2022-1204

A use-after-free flaw was found in the Linux kernel’s Amateur Radio AX.25 protocol functionality in the way a user connects with the protocol. This flaw allows a local user to crash the system...

CVE-2022-1205

A NULL pointer dereference flaw was found in the Linux kernel’s Amateur Radio AX.25 protocol functionality in the way a user connects with the protocol. This flaw allows a local user to crash the system...

UBUNTU-CVE-2022-1204

A use-after-free flaw was found in the Linux kernel’s Amateur Radio AX.25 protocol functionality in the way a user connects with the protocol. This flaw allows a local user to crash the system...

UBUNTU-CVE-2022-1205

A NULL pointer dereference flaw was found in the Linux kernel’s Amateur Radio AX.25 protocol functionality in the way a user connects with the protocol. This flaw allows a local user to crash the system...

DEBIAN-CVE-2021-3847

An unauthorized access to the execution of the setuid file with capabilities flaw in the Linux kernel OverlayFS subsystem was found in the way user copying a capable file from a nosuid mount into another mount. A local user could use this flaw to escalate their privileges on the system...

CVE-2021-27223

A denial-of-service issue existed in one of modules that was incorporated in Kaspersky Anti-Virus products for home and Kaspersky Endpoint Security. A local user could cause Windows crash by running a specially crafted binary module. The fix was delivered automatically. Credits: Straghkov Denis,...

Design/Logic Flaw

An unauthorized access to the execution of the setuid file with capabilities flaw in the Linux kernel OverlayFS subsystem was found in the way user copying a capable file from a nosuid mount into another mount. A local user could use this flaw to escalate their privileges on the system...

Denial of service

A denial-of-service issue existed in one of modules that was incorporated in Kaspersky Anti-Virus products for home and Kaspersky Endpoint Security. A local user could cause Windows crash by running a specially crafted binary module. The fix was delivered automatically. Credits: Straghkov Denis,...

CVE-2021-27223

CVE-2021-27223 affects Kaspersky Anti‑Virus (home) and Kaspersky Endpoint Security. A local user can trigger a denial‑of‑service by executing a specially crafted binary module, causing Windows crash. The fix was delivered automatically by the vendor. The available documents do not provide deeper ...

CVE-2021-3847

An unauthorized access to the execution of the setuid file with capabilities flaw in the Linux kernel OverlayFS subsystem was found in the way user copying a capable file from a nosuid mount into another mount. A local user could use this flaw to escalate their privileges on the system...

CVE-2021-3847

An unauthorized access to the execution of the setuid file with capabilities flaw in the Linux kernel OverlayFS subsystem was found in the way user copying a capable file from a nosuid mount into another mount. A local user could use this flaw to escalate their privileges on the system...

CVE-2022-1204

A use-after-free flaw was found in the Linux kernel’s Amateur Radio AX.25 protocol functionality in the way a user connects with the protocol. This flaw allows a local user to crash the system...

PT-2022-6438 · Linux +2 · Linux Kernel +2

Name of the Vulnerable Software and Affected Versions: Linux kernel affected versions not specified Description: The issue is related to an unauthorized access flaw in the Linux kernel OverlayFS subsystem. This flaw can be exploited by a local user to escalate their privileges on the system. The...

An unprivileged write to the file handler flaw in the Linux kernel's control groups and namespaces subsystem was found in the way users have access to some less privileged process that are controlled by cgroups and have higher privileged parent process. It is actually both for cgroup2 and cgroup1 versions of control groups. A local user could use this flaw to crash the system or escalate their privileges on the system.

...

A memory leak flaw was found in the Linux kernel’s DMA subsystem in the way a user calls DMA_FROM_DEVICE. This flaw allows a local user to read random memory from the kernel space.

...

A vulnerability was found in btrfs_alloc_tree_b in fs/btrfs/extent-tree.c in the Linux kernel due to an improper lock operation in btrfs. In this flaw a user with a local privilege may cause a denial of service (DOS) due to a deadlock problem.

...

A vulnerability was found in the Linux kernel's block_invalidatepage in fs/buffer.c in the filesystem. A missing sanity check may allow a local attacker with user privilege to cause a denial of service (DOS) problem.

...