Astra Linux – Vulnerability in Qemu

A divide-by-zero issue was discovered in dwc2handlepacket in hw/usb/hcd-dwc2.c, within the hcd-dwc2 USB host controller emulation in QEMU. A malicious guest could exploit this flaw to crash the QEMU process on the host, resulting in a denial of service...

Astra Linux – Vulnerability in c-ares

c-ares is an asynchronous resolver library. c-ares is vulnerable to denial of service attacks. When a target resolver sends a query, the attacker creates a malformed UDP packet with a length of 0 and sends it back to the target resolver. The target resolver misinterprets this 0-length field as an...

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 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 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...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: In the bpf and arm64 architectures, there is a vulnerability where forcing an 8-byte alignment for the JIT buffer can prevent atomic tearing. The struct bpfplt structure contains a u64 target field. Currently, the BPF JIT allocat...

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, Linux

In the Linux kernel, the following vulnerabilities have been resolved: RDMA/hfi1: Fixed potential integer multiplication overflow errors. When multiplying values of different types, an overflow can occur even when storing the result in a larger type. This happens because the conversion is perform...

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: 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 Wireshark

MONGO and ZigBee TLV dissector have infinite loops in Wireshark versions 4.2.0 to 4.2.4, 4.0.0 to 4.0.14, and 3.6.0 to 3.6.22. These bugs allow for denial of service through packet injection or with properly crafted 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 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 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 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 Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: rxrpc: Only drop the call reference if one was actually acquired. The function rxrpcinputpacketonconn can process a packet for the client after the current client call on the channel has already been terminated. In this case,...

Astra Linux – Vulnerability in Linux, Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: net/sched: actskbmod: Skip non-Ethernet packets Currently, tcfskbmodact assumes that packets use Ethernet as their L2 protocol, which is not always the case. For example, for CAN devices: bash $ ip link add dev vcan0 type vcan $ ...

Astra Linux – Vulnerability in Linux

A vulnerability was discovered in the Linux kernel 5.8.9. The WEP, WPA, WPA2, and WPA3 implementations reassemble fragments, even though some of them were sent in plain text. This vulnerability can be exploited to inject packets and/or exfiltrate selected fragments when another device sends...

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...