Astra Linux – Vulnerability in net-snmp

The handleipDefaultTTL in agent/mibgroup/ip-mib/ipscalars.c in Net-SNMP versions 5.8 through 5.9.3 has a NULL Pointer Exception bug. This bug can be exploited by a remote attacker who has write access to cause the instance to crash via a crafted UDP packet, resulting in a Denial of Service attack...

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

In the Linux kernel, the following vulnerability has been resolved: “pipe: wakeup wrwait after setting maxusage” The commit c73be61cede5 “pipe: Add general notification queue support” introduced a regression that could cause pipes with resized sizes to become locked under certain conditions. See...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: btrfs: Fixed the inode leak in btrfsiget. BUG There is a bug report that a syzbot reproducer can cause the following issue: A busy inode occurs at the time of unmount: - BTRFS info device loop1: Last unmount of the filesystem...

Astra Linux – Vulnerability in Linux 5.10, Linux

In the Linux kernel, the following vulnerability has been resolved: ext4: fixed the bug in ext4writepages We encountered the following issue: EXT4-fs error device loop0: ext4mbgeneratebuddy:1141: group 0, block bitmap and bg descriptor inconsistent: 25 vs 31513 free cls ------------ cut here...

Astra Linux – Vulnerability found in Linux 5.15, Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: ext4: Allow ext4getgroupinfo to fail. Previously, ext4getgroupinfo would treat an invalid group number as a BUG, since this should never happen in theory. However, if a malicious attacker modifies the superblock via the block...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerabilities have been resolved: Tracing: Fixed the issue with copylinklist updates when the “copyTracemarker” option is enabled for an instance. When this option is enabled, any data written to /sys/kernel/tracing/tracemarker is also copied into the buffer o...

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

In the Linux kernel, the following vulnerability has been resolved: media: usb: siano: Fix use after free bugs caused by dosubmiturb There are UAF bugs caused by dosubmiturb. One of the KASan reports is shown below: 36.403605 BUG: KASAN: use-after-free in workerthread+0x4a2/0x890 36.406105 Read o...

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: drm/i915/gt: Resets queuepriorityhint when the queue is empty. Originally, with strict order execution, execution could only be completed when the queue was empty. Preempt-to-busy allows for the replacement of an active request...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: netfilter: nfnetlinkqueue: The hash table is now created per queue. Sharing a global hash table among all queues is tempting, but it can lead to crashes. Bug: KASAN: A “slab-use-after-free” issue exists in...

Astra Linux – Vulnerability in Linux 6.1

In the Linux kernel, the following vulnerability has been resolved: Block layer: Fixed a warning in copyfromiter. Syzkaller reported a warning in copyfromiter because an ioviter was supposedly used in the wrong direction. The reason is that Syzkaller managed to generate a request with a transfer...

Astra Linux – Vulnerability in gdisk

In the LoadPartitionTable function of gpt.cc, there is a potential out-of-bounds write vulnerability due to a missing bounds check. This could lead to a local escalation of privileges when inserting a malicious USB device, without the need for additional execution privileges. User interaction is...

Astra Linux – Vulnerability in OpenSSL

To decrypt SM2 encrypted data, an application is expected to call the API function EVPPKEYdecrypt. Typically, an application will call this function twice. The first time, upon entry, the “out” parameter can be NULL, and upon exit, the “outlen” parameter contains the buffer size required to hold...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: can: gsusb: gsusbreceivebulkcallback: An error occurred in usbsubmiturb, causing the URB to be unanchored before it is processed by gsusbreceivebulkcallback, thereby preventing a memory leak during cleanup. In commit 7352e1d5932a...

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

In the Linux kernel, the following vulnerability has been resolved: netfilter: flowtable – incorrect pppoe tuple PPPoE traffic that reaches the ingress path does not match the flowtable entry because the pppoe header is expected to be at the network header offset. This bug causes a mismatch in th...

Astra Linux – Vulnerability in Linux 5.10, Linux

In the Linux kernel, the following vulnerabilities have been resolved: ext4: fixed the bug in estreesearch Hulk Robot reported a BUG: kernel BUG at fs/ext4/extentsstatus.c:199! ... RIP: 0010:ext4esend fs/ext4/extentsstatus.c:199 inline RIP: 0010:estreesearch+0x1e0/0x260 fs/ext4/extentsstatus.c:21...

Astra Linux – Vulnerability in Linux 5.10, Linux

In the Linux kernel, the following vulnerability has been resolved: usb: usbtmc: Fixed a bug in the pipe direction for control transfers. The syzbot fuzzer reported a minor bug in the usbtmc driver: usb 5-1: The BOGUS control direction, pipe 80001e80, does not match bRequestType 0. WARNING: CPU: ...

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

In the Linux kernel, the following vulnerabilities have been resolved: llc: Support for ETHPTR8022 has been removed. The syzbot reported a bug related to uninit-values. 0 llc previously supported ETHP8022 0x0004 and also ETHPTR8022 0x0011. The syzbot exploited this to trigger the bug. The code us...

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

In the Linux kernel, the following vulnerability has been resolved: ext4: Fixed a double-free of blocks due to incorrect movedlen values during extent movements. In ext4moveextents, movedlen is updated only when all movements are successfully executed. It also discards preallocations for originod...

Astra Linux – Vulnerability in Linux 6.1

In the Linux kernel, the following vulnerability has been resolved: LoongArch: BPF: Prevent out-of-bounds memory access The testtag test triggers an unhandled page fault: ./testtag 130.640218 CPU 0 Unable to handle kernel paging request at virtual address ffff80001b898004, era == 9000000003137f7c...

Astra Linux – Vulnerability found in Linux 5.10, Linux 5.15

In the Linux kernel, the following vulnerabilities have been resolved: ALSA: ymfpci: Created a card with the device-managed snddevmcardnew function. The sndcardymfpciremove function was removed in commit c6e6bb5eab74 “ALSA: ymfpci: Allocating resources using device-managed APIs”, but the call to...