CVE-2021-22600
MediumActively exploited (CISA KEV)
Description
A double free bug in packet_set_ring() in net/packet/af_packet.c can be exploited by a local user through crafted syscalls to escalate privileges or deny service. We recommend upgrading kernel past the effected versions or rebuilding past ec6af094ea28f0f2dda1a6a33b14cd57e36a9755
SeverityMedium
CVSS6.6
Exploit probability—
Product
Linux Kernel
PublishedJan 26, 2022
First seenJan 26, 2022
Added to KEVApr 11, 2022
Weakness typeCWE-415CWE-415
How to fix
CISA required action
Apply updates per vendor instructions.
CISA due date: May 2, 2022Update
- linux linux_kernel4.14.259, 4.19.222, 5.4.168, 5.10.88, 5.15.11 or later
Vendor advisories
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| netapp 8300_firmware | No range specified | — |
| netapp 8700_firmware | No range specified | — |
| netapp a400_firmware | No range specified | — |
| netapp c400_firmware | No range specified | — |
| linux linux_kernel | 4.14.175 ≤ v < 4.14.259, 4.19.114 ≤ v < 4.19.222, 5.4.29 ≤ v < 5.4.168, 5.5.14 ≤ v < 5.10.88, 5.11 ≤ v < 5.15.11 | 4.14.259, 4.19.222, 5.4.168, 5.10.88, 5.15.11 |
| debian debian_linux | 9.0, 10.0 | — |
| netapp h410c_firmware | No range specified | — |
| netapp h300s_firmware | No range specified | — |
| netapp h500s_firmware | No range specified | — |
| netapp h700s_firmware | No range specified | — |
| netapp h410s_firmware | No range specified | — |
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