CVE-2021-47602

mac80211: track only QoS data frames for admission control

EPSS 0.2%

Vexday Risk Score

3Bajo

Decisión SSVC (CISA)

Track

Sin señal de explotación → monitorear

CVSS —EPSS 0.2%KEV nãoPoC —Nuclei —Metasploit —Patch —

Ciclo de vida

19 jun 2024Publicada en NVD

Recomendación: Monitorear — sin señal de explotación por ahora.

In the Linux kernel, the following vulnerability has been resolved: mac80211: track only QoS data frames for admission control For admission control, obviously all of that only works for QoS data frames, otherwise we cannot even access the QoS field in the header. Syzbot reported (see below) an uninitialized value here due to a status of a non-QoS nullfunc packet, which isn't even long enough to contain the QoS header. Fix this to only do anything for QoS data packets.

Productos afectados

Linux · Linux

Referencias

https://git.kernel.org/stable/c/42d08e97b196479f593499e887a9ab81446a34b9 https://git.kernel.org/stable/c/46b9e29db2012a4d2a40a26101862e002ccf387b https://git.kernel.org/stable/c/69f054d6642c8f6173724ce17e7ee3ff66b8f682 https://git.kernel.org/stable/c/d5e568c3a4ec2ddd23e7dc5ad5b0c64e4f22981a https://git.kernel.org/stable/c/eed897a22230e3231a740eddd7d6d95ba476625f