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: ipv6: mcast: removed one synchronizenet call from ipv6mcdown. As discussed in previous discussions commit 2d3916f31891 “ipv6: fix skb drops in igmp6eventquery and igmp6eventreport”, the synchronizenet call in ipv6mcdown is not...

Astra Linux – Vulnerability found in Linux 5.10, Linux 5.15

In the Linux kernel, the following vulnerabilities have been resolved: RDMA/cma: Allow UD qptype to join multicast only Regarding multicast: - The SIDR is the only mode that makes sense; - In addition to PSUDP, other port spaces like PSIB are also allowed, as they are UD-compatible. In this case,...

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 in Linux 5.10, Linux

In the Linux kernel, the following vulnerability has been resolved: net: ipv6: Ensure that we call ipv6mcdown at most once. There are two reasons why addrconfnotify is called with NETDEVDOWN: Either the network device is actually going down, or IPv6 was disabled on the interface. If either of the...

Astra Linux – Vulnerability in Linux, Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: net: ipv4: Fix memory leak in ipmcadd1src BUG: Memory leak Unreferenced object: 0xffff888101bc4c00 size 32 Command: “syz-executor527”, PID 360, jiffies 4294807421 age 19.329 seconds Hex dump first 32 bytes: 00 00 00 00 00 00 00 0...

Astra Linux – Vulnerability in Linux 5.10, Linux

In the Linux kernel, the following vulnerabilities have been resolved: IGMP: Fixed data races related to sysctligmpqrv. When reading sysctligmpqrv, it can be changed concurrently. Therefore, we need to add READONCE to its readers. This test can be incorporated into a helper module; such changes...

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: net: bridge: switchdev: Skip MDB replays of deferred events on offload Before this change, the generation of the list of MDB events to replay competed with the creation of new group memberhips, either through the IGMP/MLD snoopin...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: nfp: MC addresses are cleaned in the application firmware when the port is closed. When moving devices from one namespace to another, MC addresses are cleaned by software, but they are not removed from the application firmware. A...

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

In the Linux kernel, the following vulnerability has been resolved: IB/ipoib: Fixed the issue with locking the mcast list. The release of priv-lock while iterating over priv-multicastlist in ipoibmcastjointask creates a situation where ipoibmcastdevFlush may remove the items while the iteration i...

Unity Linux 20.1050e Security Update: kernel (UTSA-2026-021635)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-021635 advisory. In the Linux kernel, the following vulnerability has been resolved: net/mlx5: Fix steering rules cleanup vport's mc, uc and multicast rules are not deleted in teardo...

Windows Snipping Tool - NTLMv2 Hash Hijack

Exploit Title: Windows Snipping Tool - NTLMv2 Hash Hijack Date: 2026-04-22 Exploit Author: nu11secur1ty Video Demo: https://www.patreon.com/posts/cve-2026-33829-156243398 Vendor Homepage: https://www.microsoft.com Software Link: Built-in Windows Snipping Tool Version: Windows 10, Windows 11,...

CLSA-2026-1778157268 dnsmasq: Fix of CVE-2022-0934

CVE-2022-0934: Fix write-after-free in DHCPv6 relay handling that could be triggered by a crafted packet, leading to denial of service - rfc3315: fix bad reply to DHCPCONFIRM messages wrong message type - rfc3315: fix integer underflow and heap overflow in log6opts STATUSCODE - rfc3315: fix...

CLSA-2026-1778112033 avahi: Fix of CVE-2026-24401

CVE-2026-24401: fix avahi-daemon crash on receipt of unsolicited mDNS responses containing self-referencing CNAME records by detecting CNAME loops in lookuphandlecname to prevent uncontrolled recursion and stack exhaustion; also includes two related DoS fixes in the same lookup path from upstream...

CVE-2026-43180

The CVE-2026-43180 issue affects the Linux kernel kaweth USB Ethernet driver. The function kaweth_set_rx_mode() improperly manipulates the TX queue by calling netif_stop_queue() followed by netif_wake_queue(), which can wake the TX queue while a tx_urb is still in flight, causing a double usb_sub...

ssrfcheck: SSRF Bypass Caused by Failure to Classify Reserved IP Address Space as Invalid

SSRF Bypass in ssrfcheck - fails to classify reserved IP address space as invalid ssrfcheck is an npm package that serves to provide protection from SSRF by validating URLs or hostname inputs. Resources: Project's GitHub code repository: https://github.com/felippe-regazio/ssrfcheck Project's npm...

GHSA-P4HC-9PJH-55C8 ssrfcheck: SSRF Bypass Caused by Failure to Classify Reserved IP Address Space as Invalid

SSRF Bypass in ssrfcheck - fails to classify reserved IP address space as invalid ssrfcheck is an npm package that serves to provide protection from SSRF by validating URLs or hostname inputs. Resources: Project's GitHub code repository: https://github.com/felippe-regazio/ssrfcheck Project's npm...

EUVD-2025-22851

ssrfcheck: SSRF Bypass Caused by Failure to Classify Reserved IP Address Space as Invalid...

avahi: Avahi: Denial of Service via recursive CNAME record in mDNS response

A flaw was found in Avahi, a system that enables devices to discover services on a local network. A remote attacker can exploit this vulnerability by sending a specially crafted mDNS multicast Domain Name System response containing a recursive CNAME Canonical Name record. This triggers an...

avahi: Avahi: Denial of Service via crafted mDNS/DNS-SD announcements

A flaw was found in Avahi. A remote attacker can cause a Denial of Service DoS by sending specially crafted unsolicited announcements containing CNAME resource records. These records, when pointing to other resource records with short Time-To-Live TTL values, can lead to the avahi-daemon crashing...

Juniper Junos OS Vulnerability (JSA83018)

The version of Junos OS installed on the remote host is affected by a vulnerability as referenced in the JSA83018 advisory. - An Unchecked Return Value vulnerability in the Routing Protocol Daemon rpd on Juniper Networks Junos OS and Juniper Networks Junos OS Evolved allows a logically adjacent,...