BDU:2023-01205

Уязвимость функции rds_rm_zerocopy_callback() в модуле net/rds/message.c ядра операционной системы Linux, позволяющая нарушителю вызвать отказ в обслуживании

Severity: HIGH (7.8) Vector: AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

References:

CVE-2023-1078

Published: 2023-03-28
Modified: 2024-11-21

CVE-2023-1078

A flaw was found in the Linux Kernel in RDS (Reliable Datagram Sockets) protocol. The rds_rm_zerocopy_callback() uses list_entry() on the head of a list causing a type confusion. Local user can trigger this with rds_message_put(). Type confusion leads to `struct rds_msg_zcopy_info *info` actually points to something else that is potentially controlled by local user. It is known how to trigger this, which causes an out of bounds access, and a lock corruption.

Severity: HIGH (7.8) Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

References:

Version: 2.1.0

Branch p9 update on 2023-02-22

ALT-BU-2023-2666-1

ALT-PU-2023-1317-1

Closed vulnerabilities

BDU:2023-01205

CVE-2023-1078