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

In the Linux kernel, the following vulnerability has been resolved: usb: aqc111: Check the packet for fixup for true limits. If a device sends a packet that lies between 0 and sizeofu64, the value passed to skbtrim as the packet length will wrap around, resulting in a very large value. The driver...

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: geneve: Fixed header validation in geneve6xmitskb. syzbot is able to trigger an uninit-value in genevexmit. Problem: While most IP tunnel helpers such as iptunnelgetdsfield use skbprotocolskb, true, pskbinetmaypull only uses...

Astra Linux – Vulnerability in Linux 5.10, Linux

In the Linux kernel, the following vulnerability has been resolved: afnetlink: Fixed an out-of-bounds shift in the group mask calculation When a netlink message is received, netlinkrecvmsg fills in the address of the sender. One of the fields is the 32-bit bitfield nlgroups, which carries the...

Astra Linux – Vulnerability found in Linux 5.10, Linux 5.15

In the Linux kernel, the following vulnerabilities have been resolved: bpf: Added preemptcountsub,add to the btf id deny list. The recursion checks in bpfprogenter and bpfprogexit leave preemptcountsub,add unprotected. When using trampolines for them, a panic occurs as follows: 867.843050 BUG: Th...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: bpf: Protection against accessing NULL pt regs in bpfgettaskstack The taskptregs function can return NULL on the powerpc architecture for kernel threads. This NULL value is then used in bpfgetstack to check for the user mode...

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: bpf: Reject unhashed sockets in bpfskassign The semantics for bpfskassign are as follows: c sk = somelookupfunc bpfskassignskb, sk bpfskreleasesk That is, the sk is not consumed by bpfskassign. Therefore, the function must ensure...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: schedext: The issue where the isbpfmigrationdisabled function returned a false negative for tasks that are not under PREEMPTRCU protection was fixed. Since the commit 8e4f0b1ebcf2 “bpf: use rcureadlockdontmigrate for trampoline.c...

Astra Linux – Vulnerability in OpenLDAP

A flaw was discovered in OpenLDAP. This flaw allows an attacker who can send a malicious packet to be processed by OpenLDAP’s slapd server, thereby triggering an assertion failure. The greatest threat of this vulnerability is to system availability...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: net: ti: icssg-prueth: Fixed a memory leak in XDPDROP for the non-zero-copy mode. Page recycling was removed from the XDPDROP path in emacrunxdp to avoid conflicts with the AFXDP zero-copy mode, which uses xskbufffree instead...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: rxrpc: The issue of using the wrong skb when comparing the queued RESP challenge serial number has been fixed. In rxrpcpostresponse, the code should compare the challenge serial number from the cached response before deciding to...

Astra Linux – Vulnerability in Wireshark

The GQUIC dissector crash in Wireshark versions 4.0.0 to 4.0.4, and 3.6.0 to 3.6.12 allows for denial of service through packet injection or malicious capture files...

Astra Linux – Vulnerability in Linux 6.1

In the Linux kernel, the following vulnerability has been resolved: bpf: Fixed an issue in verifying allowptrleaks. After we changed the capabilities of our networking-bpf program from capsysadmin to capnetadmin+capbpf, our networking-bpf program failed to start. This was because it failed the bp...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: bpf: Fixed the exclusive map memory leak When exclproghash is 0 and exclproghashsize is non-zero, the map also needs to be freed. Otherwise, the map memory will not be reclaimed, similar to the memory leak issue reported by syzbo...

Astra Linux – Vulnerability in Wireshark

The iSCSI dissector in Wireshark versions 4.0.0 to 4.0.6 allows for denial of service through packet injection or malicious capture files...

Astra Linux – Vulnerability in Wireshark

The T.38 dissector crash in Wireshark versions 4.2.0 to 4.0.3, and 4.0.0 to 4.0.13 allows for denial of service through packet injection or malicious capture files...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerabilities have been resolved: Ice: Fixed DMA mapping leaks The leak was fixed when the user changed ring parameters. During the reallocation of RX buffers, new DMA mappings are created for those buffers. New buffers with a different RX ring count should...

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: geneve: Make sure to pull the inner header in geneverx. syzbot triggered a bug in geneverx 1 The issue is similar to the one I fixed in commit 8d975c15c0cd: "ip6tunnel: Make sure to pull the inner header in ip6tnlrcv" We need ...

Astra Linux – Vulnerability in Linux

The 802.11 standard that underpins Wi-Fi Protected Access WPA, WPA2, and WPA3 and Wired Equivalent Privacy WEP does not require that the A-MSDU flag in the plaintext QoS header field be authenticated. Against devices that support receiving non-SSP A-MSDU frames which is mandatory as part of...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: BPF: Fixed the verifier’s assumptions regarding the socket-sk structure. The verifier assumes that the sk field in the struct socket structure is valid and not NULL when the socket pointer itself is trusted and not NULL. This...

Astra Linux – Vulnerability found in Linux 5.15, Linux 6.1

In the Linux kernel, the following vulnerability has been resolved: bpf, sockmap: Rejects redirects of skmsg messages to non-TCP sockets With a SOCKMAP/SOCKHASH map and a skmsg program, users can direct messages sent from one TCP socket s1 to actually exiting from another TCP socket s2...