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

In the Linux kernel, the following vulnerability has been resolved: In the tcpdisconnect function, the tcpsksk-fastopenrsk field was not cleared. The syzbot reported that a socket had tcpsksk-fastopenrsk in the TCPESTABLISHED state. The syzbot reused the server-side TCP Fast Open socket as a new...

Astra Linux – Vulnerability found in Linux 5.10, Linux 5.15

In the Linux kernel, the following vulnerability has been resolved: net: qrtr: A bug in accessing the uninit variable was fixed in qrtrtxresume. Syzbot reported the bug as follows: ===================================================== Bug: KMSAN: Access to the uninitvalue variable in...

Astra Linux – Vulnerability in Tomcat9

Check-time/use-time TOCTOU race condition vulnerability in Apache Tomcat: When creating Unix domain sockets, an unauthorized local user can access the Unix domain socket. This issue affects Apache Tomcat: versions from 11.0.0-M1 through 11.0.24, from 10.1.0-M1 through 10.1.57, and from 9.0.42...

Astra Linux – Vulnerability found in Linux 6.1, Linux 5.15

In the Linux kernel, the following vulnerabilities have been resolved: bpf, sockmap: Fixed a race condition related to the refcnt of skb after locking operations. There is a race condition where the skb from the skpsockbacklog can be referenced after the user-space environment has already consume...

Astra Linux – Vulnerability in Linux 6.1

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: SCO: Race conditions in scosockconnect have been fixed. scosockconnect checks skstate and sktype without holding the socket lock. Two concurrent connect system calls on the same socket can both pass the check and enter...

Astra Linux – Vulnerability found in Linux 5.10, Linux 6.1

In the Linux kernel, the following vulnerabilities have been resolved: AppArmor: Fixed the issue where NULL sock was used in aasockfileperm. Consider the possibility that sock and sock-sk could become NULL during socket setup or tear-down. This could lead to an error. The fix for NULL pointer...

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: ax25: The unshare skbs operation was performed correctly in ax25kissrcv. Bernard Pidoux reported a regression that appeared to be caused by the commit c353e8983e0d “net: introduce per netns packet chains”. This commit introduced ...

Astra Linux – Vulnerability found in Linux 5.15, Linux 6.1

In the Linux kernel, the following vulnerabilities have been resolved: net: Missing check for virtio Two missing checks in virtionethdrtoskb allowed syzbot to crash kernels again. 1. After the skbsegment function, the buffer may become non-linear nrfrags != 0. However, since the SKBTXSHAREDFRAG...

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

In the Linux kernel, the following vulnerability has been resolved: vsock: Do not allow binding to VMADDRPORTANY. It is possible for a vsock to automatically bind itself to VMADDRPORTANY. This can lead to a “use-after-free” issue when a connection is made to the bound socket. The socket returned ...

Astra Linux – Vulnerability in Linux 6.1

In the Linux kernel, the following vulnerability has been resolved: vsock/virtio: The length of the packet header is validated before calling skbPut. When receiving a vsock packet in the guest, only the size of the virtqueue buffer is validated prior to calling virtiovsockskbrxPut. Unfortunately,...

Astra Linux – Vulnerability in Linux

In the Linux kernel, the following vulnerability has been resolved: In the bcm module, there was a issue where bo-bcmprocread was still triggered after the removeprocentry function was called. The syzbot tool reported a warning in the bcmrelease function. The fix addressed another warning that...

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

In the Linux kernel, the following vulnerabilities have been resolved: Bluetooth: Fixed use-after-free bugs caused by scosocktimeout. When the sco connection is established, the sco sock is released. At that time, timeoutwork is scheduled to determine whether the sco disconnection is timed out. T...

Astra Linux – Vulnerability in Linux 5.10, Linux

In the Linux kernel, the following vulnerabilities have been resolved: Net: If sock is not available, do not access sock's skwq in skstreamwaitmemory. The following NULL pointer dereferences have also been fixed: ... 14.471200 Call Trace: 14.471562 14.471882 lockacquire+0x245/0x2e0 14.472416 ?...

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: batman-adv: fixed OOB read/write in network-coding decode. batadvncskbdecodepacket relies on codedlen and only checks against skb-len. The XOR operation starts at sizeofstruct batadvunicastpacket, which reduces the payload...

Astra Linux – Vulnerability in Linux, Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: net: amd-xgbe: Fixed an issue with the data length underflow in SKB structures. A BUGON will be triggered in the include/linux/skbuff.h file, resulting in intermittent kernel panics when a data length underflow is detected. This...

Astra Linux – Vulnerability in Linux 5.10, Linux

In the Linux kernel, the following vulnerability has been resolved: bpf, sockmap: Fixed repeated calls to sockput when msg has moredata In the tcpbpfsendverdict redirection, the eval variable is assigned to SKREDIRECT after the applybytes data is sent. If msg has moredata, sockput will be called...

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: fou: Do not allow 0 for FOUATTRIPPROTO. The issue mentioned in the previous patch still exists in fouudprecv. If FOUATTRIPPROTO is set to 0, the buffer skb is neither freed by fouudprecv nor sent through ipprotocoldeliverrcu. Let...

Astra Linux – Vulnerability found in Linux 6.1, Linux 5.15

In the Linux kernel, the following vulnerability has been resolved: bpf, sockmap: Avoid using sksocket after free when sending messages. The sk-sksocket is not locked or referenced in the backlog thread. During the call to skbsendsock, there is a race condition involving the release of sksocket...

Astra Linux – Vulnerability in Linux 6.1

In the Linux kernel, the following vulnerability has been resolved: tls: Purged asynchold from tlsdecryptwait The asynchold queue retains encrypted input data while the AEAD engine references their scatterlist data. Once tlsdecryptwait returns, all AEAD operations are completed, and the engine no...

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: llc: Do not use skbget before devqueuexmit. The syzbot exploit can cause hosts to crash, especially when using llc and devices that do not support IFFTXSKBSHARING. In this case, the e1000 driver calls ethskbpad, where the skb is...