Astra Linux – Vulnerability found in Linux 5.10, Linux 5.15

In the Linux kernel, the following vulnerability has been resolved: tipc: Do not update the MTU if msgmax is too small during MTU negotiation. During link MTU negotiation, a malicious peer may send an “Activate msg” with a very small MTU, e.g., 4, as tested by Shuang. Without checking for the...

SUSE CVE-2023-53517

In the Linux kernel, the following vulnerability has been resolved: tipc: do not update mtu if msgmax is too small in mtu negotiation When doing link mtu negotiation, a malicious peer may send Activate msg with a very small mtu, e.g. 4 in Shuang's testing, without checking for the minimum mtu,...

CVE-2023-53517

In the Linux kernel, the following vulnerability has been resolved: tipc: do not update mtu if msgmax is too small in mtu negotiation When doing link mtu negotiation, a malicious peer may send Activate msg with a very small mtu, e.g. 4 in Shuang's testing, without checking for the minimum mtu,...

CVE-2023-53517

Summary: CVE-2023-53517 affects the Linux kernel’s TIPC MTU negotiation logic. A malicious peer could send an Activate message with an extremely small MTU (e.g., 4), causing l->mtu to drop to 4 in tipc_link_proto_rcv() and leading to an overflow when computing MTU-related values (e.g., 4 - INT...

CVE-2023-53517 tipc: do not update mtu if msg_max is too small in mtu negotiation

In the Linux kernel, the following vulnerability has been resolved: tipc: do not update mtu if msgmax is too small in mtu negotiation When doing link mtu negotiation, a malicious peer may send Activate msg with a very small mtu, e.g. 4 in Shuang's testing, without checking for the minimum mtu,...

PT-2025-40224

Name of the Vulnerable Software and Affected Versions Linux kernel versions prior to 6.3.0.neta Description The Linux kernel contains a flaw in the tipc Trusted Inter-Process Communication subsystem related to Maximum Transmission Unit MTU negotiation. A malicious peer could potentially send an...