CVE-2021-47602
Last modified
CVE-2021-47602 is a medium-severity vulnerability rated 5.5/10 on the CVSS scale. 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.. EPSS estimates a 0.22% chance of exploitation in the next 30 days.
Description
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.
Metrics
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Weakness Enumeration
Affected Software
| Vendor | Product | Versions | Update |
|---|---|---|---|
| Linux | Linux Kernel | >= 3.19, < 4.19.222 | — |
| Linux | Linux Kernel | >= 4.20, < 5.4.168 | — |
| Linux | Linux Kernel | >= 5.5, < 5.10.88 | — |
| Linux | Linux Kernel | >= 5.11, < 5.15.11 | — |
| Linux | Linux Kernel | 5.16 | Rc1 |
References
Timeline
- Published
- Last Modified
- Status
- Modified
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Scan your code nowSource: NVD / NIST