Astra Linux – Vulnerability in Linux 5.10, Linux

In the Linux kernel, the following vulnerabilities have been resolved: bpf, sockmap: Fixed a race condition in sockmapfree. sockmapfree calls releasesocksk without owning a reference to the socket. This could lead to a use-after-free, as syzbot identified this issue 1. Jakub Sitnicki already...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: bpf: Do not report a verification bug for missing bpfsccvisit calls on speculative execution paths. Syzbot generated a program that triggers a verifierbug call in maybeexitscc. maybeexitscc assumes that, when called for a state...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: BPF: Skip the scalar adjustment for BPFNEG if the destination is a pointer. In checkaluop, the verifier currently calls checkregarg and adjustscalarminmaxvals unconditionally for BPFNEG operations. However, if the destination...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: net: fec: handle pagepooldevallocpages error The fecenetupdatecbd function calls pagepooldevallocpages, but it does not handle the case where NULL is returned. A WARNON!newpage message is generated, but the program still proceeds...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: LoongArch: BPF: No support for struct arguments in trampoline programs The current implementation does not support struct arguments. This causes an oops when running the bpf selftest: $ ./testprogs -a tracingstruct Oops1: CPU -1...

Astra Linux – Vulnerability in Wireshark

In Wireshark versions 3.2.0 to 3.2.3, 3.0.0 to 3.0.10, and 2.6.0 to 2.6.16, the NFS dissector could crash. This issue was addressed in the epan/dissectors/packet-nfs.c file by preventing excessive recursion, such as when a cycle occurred in the directory graph of a filesystem...

Astra Linux – Vulnerability in Linux 5.10, Linux

In the Linux kernel, the following vulnerability has been resolved: bpf: Do not redirect packets with invalid pktlen Syzbot identified an issue 1: the fqcodel Drop function attempts to drop a flow without any SKBs, that is, when flow-head is null. The root cause, as described in 2, is that the...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: drm/sun4i: dsi: Prevent underflow when calculating packet sizes. Currently, the packet overhead is subtracted using unsigned arithmetic. With a short sync pulse, this could lead to an underflow, causing the value to wrap around t...

Astra Linux – Vulnerability found in Linux 6.1, Linux 5.15

In the Linux kernel, the following vulnerability has been resolved: Firewire: In the net subsystem, a bug related to use-after-free was fixed in the fwnetfinishincomingpacket function. The netifrx function frees the skb, but we cannot dereference it to save the skb-len...

Astra Linux – Vulnerability in Wireshark

A crash in the Sysdig Event dissector in Wireshark versions 3.6.0, 3.4.0 to 3.4.10 allows for denial of service through packet injection or crafted capture files...

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: 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 Linux 5.10, Linux

A vulnerability has been discovered in the Linux kernel. It has been classified as problematic. The affected function is nilfsnew inode in the file fs/nilfs2/inode.c of the BPF component. This vulnerability allows for manipulation after the memory allocation function free is called. The attack ca...

Astra Linux – Vulnerability in NTP

In NTP versions prior to 4.2.8p14 and 4.3.x before 4.3.100, ntpd allows an off-path attacker to block unauthenticated synchronization via a server mode packet with a spoofed source IP address. This occurs because transmissions are rescheduled even when a packet lacks a valid origin timestamp...

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, Linux 5.10

preallocelemsandfreelist in kernel/bpf/stackmap.c in the Linux kernel before version 5.14.12 allows unprivileged users to trigger an eBPF multiplication integer overflow, resulting in an out-of-bounds write...

Astra Linux – Vulnerability in libssh2

A vulnerability was discovered in the function libssh2packetadd in libssh2 1.10.0, allowing attackers to access out-of-bound memory...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: xsk: Fixed corrupted packets for XDPSHAREDUMEM. A issue was addressed in the XDPSHAREDUMEM mode, along with the aligned mode, where packets were corrupted for the second and any subsequent sockets bound to the same umem. In other...

Astra Linux – Vulnerability in Wireshark

In Wireshark versions 3.2.0 to 3.2.6, 3.0.0 to 3.0.13, and 2.6.0 to 2.6.20, the MIME Multipart dissector could crash. This issue was addressed in the epan/dissectors/packet-multipart.c file by correcting the deallocation of invalid MIME parts...

Astra Linux – Vulnerability in Linux, Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: mac80211: Only QoS data frames are tracked for admission control. For admission control, it clearly only applies to QoS data frames. Otherwise, we wouldn’t even be able to access the QoS field in the header. Syzbot reported an...