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 – 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 in Linux 5.10, Linux

In the Linux kernel, the following vulnerability has been resolved: In the net: stream module, the purge skerrorqueue operation in skstreamkillqueues has been fixed. Changheon Lee reported TCP socket leaks, with a detailed reproduction guide. It appears that we encounter TCP socket leaks in the...

Astra Linux – Vulnerability in Linux

In the Linux kernel, the following vulnerability has been resolved: net: cdceem: Fix for the “tx fixupskb leak” issue. When usbnet transmit sends a skb, it is handled in eemtxfixup. If skbcopyexpand fails, it returns NULL. In this case, usbnetstartxmit has no chance to free the original skb. The...

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 NULL pointer dereferencing and other bugs...

Astra Linux – Vulnerability in Linux 5.10, Linux

In the Linux kernel, the following vulnerabilities have been resolved: inet: Sk-skrxdst was converted to RCU rules. The syzbot reported various issues related to early demux processing. One of these issues is included in this changelog 1. Sk-skrxdst uses RCU protection without proper documentatio...

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

In the Linux kernel, the following vulnerability has been resolved: RDMA/rxe: Fixed a segmentation fault in rxecompqueuepkt. In rxecompqueuepkt, an incoming response packet is enqueued into the resppkts queue. Then, it is decided whether to run the completer task inline or schedule it. Finally, t...

Astra Linux – Vulnerability found in Linux 6.1, Linux 5.15

In the Linux kernel, the following vulnerabilities have been resolved: Bluetooth: SCO: Fixed UAF in scosocktimeout. The conn-sk might have been unlinked/freed while waiting for scoconnlock. Therefore, this check determines whether conn-sk is still valid by verifying that it is part of scosklist...

Astra Linux – Vulnerability in Linux 6.1

In the Linux kernel, the following vulnerability has been resolved: octeonep: Added handling of SKB allocation failures in octepoqprocessrx. The buildskb function returns NULL in case of a memory allocation failure. Therefore, this behavior should be handled within octepoqprocessrx to prevent NUL...

Astra Linux – Vulnerability in Linux 6.1

In the Linux kernel, the following vulnerability has been resolved: net: vertexcom: mse102x: Fixed a possible double-free of TXskb The scope of TXskb is broader than just mse102xtxframespi; therefore, if the TXskb memory needs to be expanded, we should free the temporary skb instead of the origin...

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

In the Linux kernel, the following vulnerability has been resolved: vsock/virtio: The initialization of the dangling pointer that occurs in vsk-trans has been addressed. During loopback communication, a dangling pointer can be created in vsk-trans, potentially leading to a Use-After-Free conditio...

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 in Qemu

A flaw was discovered in QEMU. If the QIOChannelWebsock object is freed while it is waiting to complete a handshake, a GSource is leaked. This can result in the callback being fired later, thereby causing a use-after-free when using the channel. This vulnerability can be exploited by a malicious...

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: gtp: The device is destroyed along with the udp socket’s netns. The gtpnewlink function links the device to the list in devnet dev, instead of srcnet, where an udp tunnel socket is created. Even when srcnet is removed, the...

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: sunrpc: Clearing the XPRTSOCKUPDTIMEOUT when resetting the transport. Since the transport-sock has been set to NULL during the reset of the transport, the XPRTSOCKUPDTIMEOUT also needs to be cleared. Otherwise, the...

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

In the Linux kernel, the following vulnerabilities have been resolved: tcp/dccp: Do not use timerpending in reqskqueueunlink. Martin KaFai Lau reported a use-after-free in reqsktimerhandler. We are encountering a use-after-free related to a bpf program attached to tracetcpretransmitsynack. The...

Astra Linux – Vulnerability found in Linux 6.1, Linux 5.15

In the Linux kernel, the following vulnerabilities have been resolved: ipv6: mcast: added RCU protection to mldnewpack The mldnewpack function can be called without holding RTNL or RCU. It should be noted that we can no longer use sockallocsendskb, because ipv6.igmpsk relies on GFPKERNEL...

Astra Linux – Vulnerability in Linux 5.15

In the Linux kernel, the following vulnerability has been resolved: bpf: fix recursive lock when verdict program return SKPASS When the streamverdict program returns SKPASS, it places the received skb into its own receive queue. However, a recursive lock occurs eventually, leading to an operating...

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

In the Linux kernel, the following vulnerability has been resolved: atm: idt77252: prevent use after free in dequeuerx We cannot dereference “skb” after calling vcc-push, because the skb is released...

Astra Linux – Vulnerability in Waitress

Waitress is a Web Server Gateway Interface server for Python 2 and 3. When a remote client closes the connection before Waitress has had the opportunity to call getpeername, Waitress will not properly clean up the connection. As a result, the main thread attempts to write to a socket that no long...