CVE-2022-2639
High
Description
An integer coercion error was found in the openvswitch kernel module. Given a sufficiently large number of actions, while copying and reserving memory for a new action of a new flow, the reserve_sfa_size() function does not return -EMSGSIZE as expected, potentially leading to an out-of-bounds write access. This flaw allows a local user to crash or potentially escalate their privileges on the system.
SeverityHigh
CVSS7.8
Exploit probability—
Product
Linux Kernel
PublishedSep 1, 2022
First seenSep 1, 2022
Weakness typeCWE-192CWE-192
How to fix
Update
- linux linux_kernel3.19, 4.5, 4.9.312, 4.14.277, 4.19.240, 5.4.191, 5.10.113, 5.15.36, 5.17.5 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| linux linux_kernel | 3.18.139 ≤ v < 3.19, 4.4.179 ≤ v < 4.5, 4.9.169 ≤ v < 4.9.312, 4.14.112 ≤ v < 4.14.277, 4.19.35 ≤ v < 4.19.240, 5.0.8 ≤ v < 5.4.191, 5.5 ≤ v < 5.10.113, 5.11 ≤ v < 5.15.36, 5.16 ≤ v < 5.17.5 | 3.19, 4.5, 4.9.312, 4.14.277, 4.19.240, 5.4.191, 5.10.113, 5.15.36, 5.17.5 |
| redhat enterprise_linux | 8.0, 9.0 | — |
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