Astra Linux – Vulnerability found in Linux 5.15, Linux 6.1

In the Linux kernel, the following vulnerability has been resolved: mptcp: Use OPTIONMPTCPMPJSYNACK in subflowfinishconnect subflowfinishconnect uses four fields backup, joinid, thmac, none that may contain garbage unless OPTIONMPTCPMPJSYNACK has been set in mptcpParseOption...

DEBIAN-CVE-2026-29008

U-Boot through 2026.04-rc3 contains an integer underflow vulnerability in the tcprxstatemachine function net/tcp.c that allows a network-adjacent attacker to crash the bootloader by sending a malformed TCP SYN+ACK packet with a manipulated data offset field causing payloadlen to become negative...

CVE-2026-29008

U-Boot 2026.04-rc3 contains a vulnerability in tcp_rx_state_machine() (net/tcp.c) that can crash the bootloader via a malformed TCP SYN+ACK with manipulated data offset, causing payload_len to become negative. The negative value is implicitly converted to a large unsigned integer and passed to me...