Astra Linux – Vulnerability in Linux 5.15

In the Linux kernel, the following vulnerabilities have been resolved: bpf, sockmap: Fixed an infinite loop issue when len is 0 in the tcpbpfrecvmsg parser. When the buffer length of the recvmsg system call is 0, a soft lockup problem occurred. watchdog: BUG: Soft lockup – CPU3 stuck for 27...

Astra Linux – Vulnerability in Linux 5.10

Ubuntu Linux 6.8 contains SAUCE patches that may involve the use of an uninitialized variable in the AppArmor AFINET/AFINET6 socket mediation code. This bug can be triggered by a non-privileged local user, and it could lead to incorrect, fine-grained mediation of network sockets...

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: mptcp: Fixed the detection of protocol fallback using BPF. The sockmap feature allows for BPF syscall from user space, or based on BPF sockops, replacing the skprot of sockets during protocol stack processing with sockmap’s...

Astra Linux – Vulnerability in Linux 5.15

In the Linux kernel, the following vulnerabilities have been resolved: Bluetooth: afbluetooth: Fixed deadlock issues Attempting to use socklock on .recvmsg may cause a deadlock as shown below. Therefore, instead of using socksock, use skreceivequeue.lock on btsockioctl to avoid UAF: INFO: Task...

Astra Linux – Vulnerability in Linux, Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: netrom: Decreases the sock refcount when the sock timer expires. The commit 63346650c1a9 “netrom: switch to the sock timer API” switched to using the sock timer API. This replaced modtimer with skresettimer, and deltimer with...

Astra Linux – Vulnerability in Linux 5.10, Linux

In the Linux kernel, the following vulnerabilities have been resolved: kcm: An annotation was added for the data-race around kcm-rxwait. kcm-rxpsock can be accessed without a read lock in kcmrfree. The read and write operations were also updated accordingly. syzbot reported: BUG: KCSAN: A data-ra...

Astra Linux – Vulnerability in Linux 5.10, Linux

In the Linux kernel, the following vulnerability has been resolved: skbuff: Account for tail adjustment during pull operations Extending the tail of a data structure may have some unexpected side effects if a program uses a helper function like BPFFUNCskbpulldata to read partial content beyond th...

Astra Linux – Vulnerability in Linux, Linux 5.15

In the Linux kernel, the following vulnerability has been resolved: sunrpc: fix one UAF issue caused by sunrpc kernel tcp socket BUG: KASAN: slab-use-after-free in tcpwritetimerhandler+0x156/0x3e0 Read of size 1 at addr ffff888111f322cd by task swapper/0/0 CPU: 0 UID: 0 PID: 0 Comm: swapper/0 Not...

Astra Linux – Vulnerability in Node.js

A malformed HTTP/2 HEADERS frame with oversized, invalid HPACK data can cause Node.js to crash by triggering an unhandled TLSSocket error ECONNRESET. Instead of safely closing the connection, the process crashes, enabling a remote denial of service. This primarily affects applications that do not...

Astra Linux – Vulnerability in Linux 5.10, Linux

In the Linux kernel, the following vulnerability has been resolved: bpf, sockmap: Fixed the issue where the memory of skmsg was uncharged twice. If tcpbpfsendmsg is running during a cleanup operation, psock may be freed. c tcpbpfsendmsg tcpbpfsendverdict skmsgreturn tcpbpfsendmsgredir...

Astra Linux – Vulnerability in Linux, Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: phonet/pep: refusal to enable an unbound pipe The ioctl function implicitly assumed that the socket was already bound to a valid local socket name, i.e., a Phonet object. If the socket was not bound, two problems would occur: 1 W...

Astra Linux – Vulnerability in Linux, Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: net: fixed information leakage in /proc/net/ptype In one net namespace, after creating a packet socket without binding it to a device, users in other net namespaces can observe the newly added packettype by reading the...

Astra Linux – Vulnerability in Redis

Redis is an in-memory database that persists data on disk. Upon startup, Redis begins listening on Unix sockets before adjusting its permissions according to the user-provided configuration. If a permissive umask value is used, this can create a race condition that allows another process to...

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

In the Linux kernel, the following vulnerability has been resolved: net: added vlangetprotocolanddepth helper. Previously, skbmaypull was used instead of skbheaderpointer in vlangetprotocol and related functions. Few calls relied on skb-head being populated with the MAC header. syzbot detected on...

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: kcm: Fixed error handling for SOCKDGRAM in kcmsendmsg. Syzkaller identified a memory leak in kcmsendmsg, and the commit c821a88bd720 "kcm: Fix memory leak in the error path of kcmsendmsg" suppressed this issue by updating...

Astra Linux – Vulnerability found in Linux 5.10, Linux 5.15

In the Linux kernel, the following vulnerability has been resolved: scsi: iscsitcp: It is necessary to check that sock is valid before assigning it to iscsisetparam. The validity of sock should be checked before assigning it to prevent incorrect values. The change introduced in commit 57569c37f0a...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerabilities have been resolved: nfc: fdp: Fixed a potential memory leak in fdpncisend. The fdpncisend function calls fdpncii2cwrite, which does not free the skb object after its execution. As a result, when fdpncii2cwrite is completed, the skb object will...

Astra Linux – Vulnerability in Linux

In the Linux kernel, the following vulnerabilities have been resolved: - UDP: Fixed a race condition between close and udpabort. - Kaustubh reported and diagnosed a panic condition in udpliblookup. The root cause is that udpabort is racing with close. Both functions attempt to acquire the socket...

Astra Linux – Vulnerability in Linux, Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: net: ieee802154: at86rf230: Stop leaking the skb structures. Upon an error, the ieee802154xmitcomplete helper function is not called. Only ieee802154wakequeue is called manually. In the Tx phase, the skb structure is leaked. Leas...

Astra Linux – Vulnerability in Linux 5.10, Linux

In the Linux kernel, the following vulnerability has been resolved: net/tunnel: Wait until all skuserdata readers complete before releasing the sock. There is a race condition in vxlan where, when deleting a vxlan device during packet reception, there is a possibility that the sock is released...