CVE-2023-3611
An out-of-bounds write vulnerability in the Linux kernel's net/sched: sch_qfq component can be exploited to achieve local privilege escalation.
The qfq_change_agg() function in net/sched/sch_qfq.c allows an out-of-bounds write because lmax is updated according to packet sizes without bounds checks.
We recommend upgrading past commit 3e337087c3b5805fe0b8a46ba622a962880b5d64.
| Software | From | Fixed in |
|---|---|---|
| linux / linux_kernel | 6.5-rc1 | 6.5-rc1.x |
| debian / debian_linux | 10.0 | 10.0.x |
| debian / debian_linux | 11.0 | 11.0.x |
| debian / debian_linux | 12.0 | 12.0.x |
| linux / linux_kernel | 5.11 | 5.15.121 |
| linux / linux_kernel | 5.5 | 5.10.188 |
| linux / linux_kernel | 4.15 | 4.19.291 |
| linux / linux_kernel | 5.16 | 6.1.40 |
| linux / linux_kernel | 4.20 | 5.4.253 |
| linux / linux_kernel | 6.2 | 6.4.5 |
| linux / linux_kernel | 3.8 | 4.14.322 |
- https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=3e337087c3b5805fe0b8a46ba622a962880b5d64
- https://kernel.dance/3e337087c3b5805fe0b8a46ba622a962880b5d64
- https://lists.debian.org/debian-lts-announce/2023/10/msg00027.html
- https://lists.debian.org/debian-lts-announce/2024/01/msg00004.html
- https://security.netapp.com/advisory/ntap-20230908-0002/
- https://www.debian.org/security/2023/dsa-5480
- https://www.debian.org/security/2023/dsa-5492
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