Rocky Linux 9.6 [TuxCare] Security Update: corosync / corosync-vqsim / corosynclib / corosynclib-devel (ALMALINUX9.6:CLSA-2026:1790008457)

The Rocky Linux 9.6 host has packages installed that are affected by a vulnerability as referenced in the TuxCare ALMALINUX9.6:CLSA-2026:1790008457 advisory. - A heap-based buffer overflow was found in Corosync's Totem Process Group totempg message reassembly. When processing fragmented multicast...

Important: corosync

Issue Overview: A heap-based buffer overflow was found in Corosync's Totem Process Group totempg message reassembly. When processing fragmented multicast messages, the buffer used to reassemble fragments lacks a runtime bounds check in release builds. A network-adjacent attacker able to send...

corosync: corosync: heap-based buffer overflow in totempg assembly buffer during fragmented message reassembly

A heap-based buffer overflow was found in Corosync's Totem Process Group totempg message reassembly. When processing fragmented multicast messages, the buffer used to reassemble fragments lacks a runtime bounds check in release builds. A network-adjacent attacker able to send crafted multicast...

corosync: corosync: heap-based buffer overflow in totempg assembly buffer during fragmented message reassembly

A heap-based buffer overflow was found in Corosync's Totem Process Group totempg message reassembly. When processing fragmented multicast messages, the buffer used to reassemble fragments lacks a runtime bounds check in release builds. A network-adjacent attacker able to send crafted multicast...

corosync: corosync: heap-based buffer overflow in totempg assembly buffer during fragmented message reassembly

A heap-based buffer overflow was found in Corosync's Totem Process Group totempg message reassembly. When processing fragmented multicast messages, the buffer used to reassemble fragments lacks a runtime bounds check in release builds. A network-adjacent attacker able to send crafted multicast...

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...

CVE-2026-81665: Heap-based Buffer Overflow

A heap-based buffer overflow was found in Corosync's Totem Process Group totempg message reassembly. When processing fragmented multicast messages, the buffer used to reassemble fragments lacks a runtime bounds check in release builds. A network-adjacent attacker able to send crafted multicast...

PT-2026-91370

A heap-based buffer overflow was found in Corosync's Totem Process Group totempg message reassembly. When processing fragmented multicast messages, the buffer used to reassemble fragments lacks a runtime bounds check in release builds. A network-adjacent attacker able to send crafted multicast...

CVE-2026-64423

A flaw was found in the Linux kernel's Internet Group Management Protocol IGMP multicast group handling. When a network device is destroyed, its associated multicast groups are not properly removed from the device's hash table before their memory is reclaimed. This creates a race condition where ...

Unity Linux 20.1070e Security Update: kernel (UTSA-2026-001733)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-001733 advisory. In ipcheckmcrcu of igmp.c, there is a possible use after free due to improper locking. This could lead to local escalation of privilege when opening and closing inet...

CVE-2025-50681

igmpproxy 0.4 before commit 2b30c36 allows remote attackers to cause a denial of service application crash via a crafted IGMPv3 membership report packet with a malicious source address. Due to insufficient validation in the recvigmp function in src/igmpproxy.c, an invalid group record type can...

EUVD-2025-27687

Malicious code in bioql PyPI...

UBUNTU-CVE-2025-38550

In the Linux kernel, the following vulnerability has been resolved: ipv6: mcast: Delay put pmc-idev in mlddeldelrec pmc-idev is still used in ip6mcclearsrc, so as mldcleardelrec does, the reference should be put after ip6mcclearsrc return...

Linux Distros Unpatched Vulnerability : CVE-2022-20141

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - In ipcheckmcrcu of igmp.c, there is a possible use after free due to improper locking. This could lead to local escalation of privilege when opening and closing...

Linux Distros Unpatched Vulnerability : CVE-2025-21884

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - In the Linux kernel, the following vulnerability has been resolved: net: better track kernel sockets lifetime While kernel sockets are dismantled during...

Astra Linux – Vulnerability in Linux 6.12

In the Linux kernel, the following vulnerabilities have been resolved: ipv6: mcast: Extended RCU protection in igmp6send igmp6send can be called without RTNL or RCU being held. We have extended RCU protection so that we can safely retrieve the net pointer and avoid a potential UAF...

CVE-2023-34552

In certain EZVIZ products, two stack based buffer overflows in mulicastparsesadppacket and mulicastgetpacktype functions of the SADP multicast protocol can allow an unauthenticated attacker present on the same local network as the camera to achieve remote code execution. This affects...

SUSE CVE-2022-49590

In the Linux kernel, the following vulnerability has been resolved: igmp: Fix data-races around sysctligmpllmreports. While reading sysctligmpllmreports, it can be changed concurrently. Thus, we need to add READONCE to its readers. This test can be packed into a helper, so such changes will be in...

Microsoft Pragmatic General Multicast Server PgmCloseConnection stale memory dereference

Talos Vulnerability Report TALOS-2024-2062 Microsoft Pragmatic General Multicast Server PgmCloseConnection stale memory dereference September 25, 2024 CVE Number CVE-2024-38140 SUMMARY A memory corruption vulnerability exists in the Pragmatic General Multicast server in Microsoft Windows 10 Kerne...

CLSA-2023-1698247974 Fix of 6 CVEs

CVE-2023-42752 // CVE-url: https://ubuntu.com/security/CVE-2023-42752 - igmp: limit igmpv3newpack packet size to IPMAXMTU CVE-2023-4623 // CVE-url: https://ubuntu.com/security/CVE-2023-4623 - net/sched: schhfsc: Ensure inner classes have fsc curve CVE-2023-34319 // CVE-url:...