CVE-2023-3773: enterprise linux 8.0, 9.0; +8 more affected products

Affected technology

enterprise linux · 8.0
redhat

enterprise linux · 9.0
redhat

fedora · Version not applicable in the source CPE
fedoraproject

linux kernel · Version not applicable in the source CPE
linux

debian linux · 10.0
debian

debian linux · 12.0
debian

Red Hat Enterprise Linux 9 · Exact affected versions not specified by the source
Red Hat

Red Hat Enterprise Linux 6 · Exact affected versions not specified by the source
Red Hat

Red Hat Enterprise Linux 7 · Exact affected versions not specified by the source
Red Hat

Red Hat Enterprise Linux 8 · Exact affected versions not specified by the source
Red Hat

SIMATIC S7-1500 TM MFP - GNU/Linux subsystem · 0 to before V1.1
Siemens

Component: Not specified by the source

Attack conditions (Vendor/CNA, CVSS 3.1): Local · Low privileges required · No user interaction required

Attack conditions (NVD, CVSS 3.1): Local · High privileges required · No user interaction required

What an attacker can do

A malicious user with CAP_NET_ADMIN privileges may cause a 4 byte out-of-bounds read of XFRMA_MTIMER_THRESH when parsing netlink attributes, leading to potential leakage of sensitive heap data to userspace. Vendor/CNA’s CVSS 3.1 assessment (base score 5.5/10) rates confidentiality impact as high; integrity and availability impact as none. NVD’s CVSS 3.1 assessment (base score 4.4/10) rates confidentiality impact as high; integrity and availability impact as none.