Astra Linux – Vulnerabilities in Linux, Linux-5.15, Linux-6.1

In the Linux kernel, the following vulnerability has been resolved: tomoyo: Fixed the UAF write bug in tomoyowritecontrol. Since tomoyowritecontrol updates head-writebuf when the write function is called for long lines, we need to retrieve head-writebuf after holding head-iosem. Otherwise,...

Astra Linux – Vulnerability in Chromium

Before version 91.0.4472.77, using WebAudio with "after free" in Google Chrome allowed a remote attacker to potentially exploit heap corruption through a crafted HTML page...

Astra Linux – Vulnerability in Linux 6.1

In the Linux kernel, the following vulnerability has been resolved: ksmbd: A use-after-free issue was addressed in closefiletableids. A ksmbdfile can remain active after a logical close, while another session holds a temporary reference obtained through ksmbdlookupfd inode. Currently, ksmbdclosef...

Astra Linux – Vulnerability in Linux 5.10, Linux, Linux 5.15

In the Linux kernel, the following vulnerability has been resolved: The issue involves bcm: – a UAF Use-After-Free flaw in bcmprocshow. Bug: KASAN: A slabuse-after-free issue occurs in bcmprocshow+0x969/0xa80. A size 8 byte read was performed at address ffff888155846230 by the task cat/7862. CPU:...

Astra Linux – Vulnerability in Chromium

Before version 91.0.4472.77, using Tab Strip in Google Chrome allowed an attacker who convinced a user to install a malicious extension to potentially exploit heap corruption through a crafted HTML page...

Astra Linux – Vulnerabilities in Linux 5.10, Linux 5.15

In the Linux kernel, the following vulnerability has been resolved: Media: si470x: Fixed a use-after-free in si470xintincallback Syzbot reported a use-after-free in si470xintincallback 1. This indicates that urb-context, which contains the struct si470xdevice object, is freed when...

Astra Linux – Vulnerability in xorg-server

A vulnerability was discovered in X.Org. This security flaw occurs because the handler for the XvdiSelectVideoNotify request may write to memory after it has been freed. This issue can lead to local privileges escalation on systems where X is used...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: ext4: Fix for a possible UAF Use-after-Write when remounting a read-only mmp-protected file system. After committing the change 618f003199c6 “ext4: Fix memory leak in ext4fillsuper”, there is a race condition where the kmmpd thre...

Astra Linux – Vulnerability found in Linux 5.10, Linux 6.1, Linux, Linux 5.15

In the Linux kernel, the following vulnerabilities have been resolved: tipc: Fixed a use-after-free in the kernel socket in cleanupbearer. syzkaller reported a use-after-free of the UDP kernel socket in cleanupbearer, without repro. 01 When bearerdisable calls tipcudpdisable, the cleanup of the U...

Astra Linux – Vulnerability in Linux 5.15

In the Linux kernel, the following vulnerability has been resolved: platform/chrome: crosectypec: Stale pointers have been set to zero. The function crostypecgetswitchhandles allocates four pointers when obtaining type-c switch handles. These pointers are all freed if none of them are obtained...

Astra Linux – Vulnerability in Linux

In the Linux kernel, the following vulnerability has been resolved: drm/amdgpu: Fixed a use-after-free issue. It seems that we forgot to set ttm-sg to NULL. This caused a panic. 1235.844104 General protection fault, likely for a non-canonical address 0x6b6b6b6b6b6b7b4b: 0000 1 SMP DEBUGPAGEALLOC...

Astra Linux – Vulnerability in Linux

In the Linux kernel, the following vulnerability has been resolved: rtnetlink: Make sure to refresh masterdev/mops in rtnlnewlink. While looking at one unrelated syzbot bug, I found that the replay logic in rtnlnewlink could potentially trigger a use-after-free condition. It’s better to clear...

Astra Linux – Vulnerability found in Linux 5.10, Linux 6.1

In the Linux kernel, the following vulnerability has been resolved: RapidIO: mportcdev: Fix for a use-after-free in dmareqfree. The dmareqfree function acquires the bufmutex through req-map. It drops the reference to req-map using krefput, and then re-dereferences req-map again to unlock the mute...

Astra Linux – Vulnerability in grub2

A vulnerability related to operations after freeing memory has been discovered in GRUB’s gettext module. This flaw arises from a programming error where the gettext command remains registered in memory even after its associated module is unloaded. An attacker can exploit this condition by invokin...

Astra Linux – Vulnerability found in Linux 5.10, Linux 6.1, Linux, Linux 5.15

In the Linux kernel, the following vulnerability has been resolved: ARP: RCU protection should be used in arpxmit. arpxmit can be called without RTNL or RCU protection. RCU protection is used to avoid potential Use-after-Allocation UAF vulnerabilities...

Astra Linux – Vulnerabilities in Linux 5.10, Linux 5.15, Linux 6.1

In the Linux kernel, the following vulnerabilities have been resolved: RDMA/srpt: Do not register the event handler until the srpt device is fully set up. In rare cases, KASAN reports a use-after-free error in the srptrefreshport function. This appears to occur because the event handler is...

Astra Linux – Vulnerability found in Linux 5.10, Linux 6.1, and Linux 5.15

In the Linux kernel, the following vulnerabilities have been resolved: nbd: defer config put in recvwork There is one UAF issue in recvwork when running NBDCLEARSOCK and NBDCMDRECONFIGURE: - nbdgenlconnect // confref=2 connect and recvwork A - nbdopen // confref=3 - recvwork A completed //...

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

The Linux kernel before version 6.2.9 has a race condition, which can lead to a use-after-free issue in the driver/power/supply/da9150-charger.c file. This issue occurs when a physically nearby attacker disconnects a device...

Astra Linux – Vulnerability found in Linux 6.1, Linux 5.10, and Linux 5.15

In the Linux kernel, the following vulnerability has been resolved: blk-cgroup: Fixed a UAF in blkcgunpinonline. blkcgunpinonline traverses the blkcg hierarchy to set the object as online. To traverse this hierarchy, it uses blkcgparentblkcg, but this call occurs after blkcgDestroyBlksblkcg, whic...

Astra Linux – Vulnerability in Firefox

A use-after-free vulnerability was identified during testing, and it was traced to an outdated Cairo library. Updating the library resolved the issue, and it may have also addressed other unknown security vulnerabilities. This vulnerability affects Firefox versions earlier than 90...