kernel: "Dirty Frag" ESP XFRM variant is a new universal Local Privilege Escalation (LPE) vulnerability in the Linux kernel

A flaw was found in the Linux kernel's xfrm-ESP and RxRPC subsystems. Unsafe in-place cryptographic processing of shared socket buffer fragments allows a low-privileged local attacker to corrupt page-cache contents of readable files, including sensitive system files, and gain root privileges. The...

kernel: Read root-owned files as an unprivileged user

A vulnerability was found in the Linux kernel that allows an unprivileged local user to read sensitive files normally restricted to the root user. The flaw occurs during process exit, where a brief window allows an attacker to intercept file access from a privileged process before it fully...

kernel: Read root-owned files as an unprivileged user

A vulnerability was found in the Linux kernel that allows an unprivileged local user to read sensitive files normally restricted to the root user. The flaw occurs during process exit, where a brief window allows an attacker to intercept file access from a privileged process before it fully...

kernel: "Dirty Frag" ESP XFRM variant is a new universal Local Privilege Escalation (LPE) vulnerability in the Linux kernel

A flaw was found in the Linux kernel's xfrm-ESP and RxRPC subsystems. Unsafe in-place cryptographic processing of shared socket buffer fragments allows a low-privileged local attacker to corrupt page-cache contents of readable files, including sensitive system files, and gain root privileges. The...

kernel: Read root-owned files as an unprivileged user

A vulnerability was found in the Linux kernel that allows an unprivileged local user to read sensitive files normally restricted to the root user. The flaw occurs during process exit, where a brief window allows an attacker to intercept file access from a privileged process before it fully...

kernel: "Dirty Frag" ESP XFRM variant is a new universal Local Privilege Escalation (LPE) vulnerability in the Linux kernel

A flaw was found in the Linux kernel's xfrm-ESP and RxRPC subsystems. Unsafe in-place cryptographic processing of shared socket buffer fragments allows a low-privileged local attacker to corrupt page-cache contents of readable files, including sensitive system files, and gain root privileges. The...

CVE-2026-41054

In src/havegecmd.c, the sockethandler function performs a credential check on the abstract UNIX socket \0/sys/entropy/haveged. However, while it detects if the connecting user is not root cred.uid != 0 and prepares a negative acknowledgement ASCIINAK, it fails to stop execution. The code proceeds...

CVE-2026-41054

CVE-2026-41054 affects haveged. In haveged’s source havegecmd.c, socket_handler checks the caller via an abstract UNIX socket and returns a negative acknowledgment for non-root users, but execution is not halted, enabling a local unprivileged user to reach privileged actions (e.g., MAGIC_CHROOT)....

CVE-2026-41054 Missing exit out of permission check in haveged could lead to root exploit

In src/havegecmd.c, the sockethandler function performs a credential check on the abstract UNIX socket \0/sys/entropy/haveged. However, while it detects if the connecting user is not root cred.uid != 0 and prepares a negative acknowledgement ASCIINAK, it fails to stop execution. The code proceeds...

kernel: Read root-owned files as an unprivileged user

A vulnerability was found in the Linux kernel that allows an unprivileged local user to read sensitive files normally restricted to the root user. The flaw occurs during process exit, where a brief window allows an attacker to intercept file access from a privileged process before it fully...

Astra Linux – Vulnerability in Linux, Linux 5.10

In the Linux kernel before version 6.1.6, a NULL pointer dereference bug in the traffic control subsystem allowed an unprivileged user to trigger a denial of service system crash through a crafted traffic control configuration set up using the "tc qdisc" and "tc class" commands. This issue affect...

Astra Linux – Vulnerabilities in Linux, Linux-5.10, Linux-5.15

A flaw was discovered in the Linux kernel’s Traffic Control TC subsystem. Using a specific networking configuration—redirecting egress packets to ingress using the TC “mirred” action—a local unprivileged user could trigger a CPU soft lockup ABBA deadlock when the transport protocol in use TCP or...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: X.509: Fixed out-of-bounds access during the parsing of extensions Leo reports a situation where out-of-bounds access occurs during the parsing of a certificate with empty Basic Constraints or Key Usage extensions. This occurs...

Astra Linux – Vulnerability in Linux, Linux 5.10

A race condition was identified in the Linux kernel’s perfeventopen function, which can be exploited by an unprivileged user to gain root privileges. This bug allows for the exploitation of several attack primitives, such as kernel address information leakage and arbitrary execution...

Astra Linux – Vulnerability in Linux 5.10, Linux

Intel’s microprocessor generations 6 to 8 are affected by a new Spectre variant that can bypass the retpoline mitigation mechanism in the kernel to leak arbitrary data. An attacker with unprivileged user access can hijack return instructions to execute arbitrary speculative code under certain...

Astra Linux – Vulnerability in avahi

A vulnerability was discovered in the avahi library. This flaw allows a non-privileged user to make a dbus call, causing the avahi daemon to crash...

Astra Linux – Vulnerability in usbguard

A issue was discovered in USBGuard prior to version 1.1.0. On systems where the usbguard-dbus daemon is running, a non-privileged user could enable USBGuard to allow all USB devices to be connected in the future...

Astra Linux – Vulnerability in Linux

The net/nfc/llcpsock.c file in the Linux kernel before version 5.12.10 allowed local unprivileged users to cause a denial of service by making a getsockname call after a certain type of failure in a bind call. This vulnerability results in a NULL pointer dereference and other bugs...

Astra Linux – Vulnerability in cloud-init

In cloud-init through 25.1.2, the systemd socket unit “cloud-init-hotplugd.socket” is included, with a default SocketMode of 0666, allowing world-write permissions. This socket is used for the /run/cloud-init/hook-hotplug-cmd FIFO. A non-privileged user can trigger the hotplug-hook commands...

Astra Linux – Vulnerability in libvirt

A flaw was discovered in the libvirt nwfilter driver. The virNWFilterObjListNumOfNWFilters method failed to acquire the driver-nwfilters mutex before iterating over virNWFilterObj instances. There was no protection to prevent another thread from concurrently modifying the driver-nwfilters object...