Vigil@nce - Linux kernel: integer overflow via tcp_ack_update_rtt
January 2020 by Vigil@nce
This bulletin was written by Vigil@nce : https://vigilance.fr/computer-vulnerability
SYNTHESIS OF THE VULNERABILITY
Impacted products: Linux, openSUSE Leap, SUSE Linux Enterprise
Desktop, SLES.
Severity: 2/4.
Consequences: administrator access/rights, denial of service on
server.
Provenance: user shell.
Confidence: confirmed by the editor (5/5).
Creation date: 08/11/2019.
DESCRIPTION OF THE VULNERABILITY
An attacker can trigger an integer overflow via
tcp_ack_update_rtt() of the Linux kernel, in order to trigger a
denial of service, and possibly to run code.
ACCESS TO THE FULL VIGIL@NCE BULLETIN
https://vigilance.fr/vulnerability/Linux-kernel-integer-overflow-via-tcp-ack-update-rtt-30811