CVE-2023-3812
High
Description
An out-of-bounds memory access flaw was found in the Linux kernel’s TUN/TAP device driver functionality in how a user generates a malicious (too big) networking packet when napi frags is enabled. This flaw allows a local user to crash or potentially escalate their privileges on the system.
SeverityHigh
CVSS7.8
Exploit probability—
Product
Linux Kernel
PublishedJul 24, 2023
First seenJul 24, 2023
Weakness typeCWE-787Out-of-bounds write
How to fix
Update
- linux linux_kernel4.19.265, 5.4.224, 5.10.154, 5.15.78, 6.0.8 or later
Vendor advisories
- access.redhat.com/errata/RHSA-2023:6799
- access.redhat.com/errata/RHSA-2023:6813
- access.redhat.com/errata/RHSA-2023:7370
- access.redhat.com/errata/RHSA-2023:7379
- access.redhat.com/errata/RHSA-2023:7382
- access.redhat.com/errata/RHSA-2023:7389
- access.redhat.com/errata/RHSA-2023:7411
- access.redhat.com/errata/RHSA-2023:7418
- access.redhat.com/errata/RHSA-2023:7548
- access.redhat.com/errata/RHSA-2023:7549
- access.redhat.com/errata/RHSA-2023:7554
- access.redhat.com/errata/RHSA-2024:0340
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| linux linux_kernel | 4.15 ≤ v < 4.19.265, 4.20 ≤ v < 5.4.224, 5.5 ≤ v < 5.10.154, 5.11 ≤ v < 5.15.78, 5.16 ≤ v < 6.0.8 | 4.19.265, 5.4.224, 5.10.154, 5.15.78, 6.0.8 |
| redhat enterprise_linux | 8.0, 9.0 | — |
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