Use after free in io_uring in the Linux Kernel
Published Jun 28, 2023
7.8
HIGHCVSS 3.1
EPSS 0.67%
Description
A use-after-free vulnerability in the Linux Kernel io_uring subsystem can be exploited to achieve local privilege escalation.
Racing a io_uring cancel poll request with a linked timeout can cause a UAF in a hrtimer.
We recommend upgrading past commit ef7dfac51d8ed961b742218f526bd589f3900a59 (4716c73b188566865bdd79c3a6709696a224ac04 for 5.10 stable and 0e388fce7aec40992eadee654193cad345d62663 for 5.15 stable).
Affected products
-
- Version 5.10.162StatusaffectedConstraints<5.10.185
- Version 5.13StatusaffectedConstraints<6.4
- Version
Configuration 1
- ≥ 5.10.162 · < 5.10.185
- ≥ 5.13 · < 6.4
Configuration 2
- 14.04
- 16.04
- 18.04
- 20.04
- 22.04
Configuration 3
- 10.0
- 11.0
No data.
Red Hat Enterprise Linux 6
kernel
Not affected
Red Hat Enterprise Linux 7
kernel
Not affected
Red Hat Enterprise Linux 7
kernel-rt
Not affected
Red Hat Enterprise Linux 8
kernel
Not affected
Red Hat Enterprise Linux 8
kernel-rt
Not affected
Red Hat Enterprise Linux 9
kernel
Not affected
Red Hat Enterprise Linux 9
kernel-rt
Not affected
| Product | Package | State | Advisory |
|---|---|---|---|
| Red Hat Enterprise Linux 6 | kernel | Not affected | n/a |
| Red Hat Enterprise Linux 7 | kernel | Not affected | n/a |
| Red Hat Enterprise Linux 7 | kernel-rt | Not affected | n/a |
| Red Hat Enterprise Linux 8 | kernel | Not affected | n/a |
| Red Hat Enterprise Linux 8 | kernel-rt | Not affected | n/a |
| Red Hat Enterprise Linux 9 | kernel | Not affected | n/a |
| Red Hat Enterprise Linux 9 | kernel-rt | Not affected | n/a |
No package ranges for this CVE.
Remediation
Red Hat statement
The io_uring disabled before Red Hat Enterprise Linux 9.3, so all versions before 9 are not affected.
References (14)
- http://packetstormsecurity.com/files/174577/Kernel-Live-Patch-Security-Notice-LSN-0097-1.html Third Party AdvisoryVDB Entry
- https://access.redhat.com/security/cve/CVE-2023-3389 Vendor Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=2218604 Issue Tracking
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?h=linux-5.10.y&id=4716c73b188566865bdd79c3a6709696a224ac04 patchMailing List
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?h=linux-5.15.y&id=0e388fce7aec40992eadee654193cad345d62663 patchMailing List
- https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=ef7dfac51d8ed961b742218f526bd589f3900a59 patchMailing List
- https://kernel.dance/0e388fce7aec40992eadee654193cad345d62663 Patch
- https://kernel.dance/4716c73b188566865bdd79c3a6709696a224ac04 Patch
- https://kernel.dance/ef7dfac51d8ed961b742218f526bd589f3900a59 Patch
- https://lists.debian.org/debian-lts-announce/2023/10/msg00027.html Mailing ListThird Party Advisory
- https://nvd.nist.gov/vuln/detail/CVE-2023-3389
- https://security.netapp.com/advisory/ntap-20230731-0001/ Third Party Advisory
- https://www.cve.org/CVERecord?id=CVE-2023-3389
- https://www.debian.org/security/2023/dsa-5480 Third Party Advisory
Change history (0)
No recorded changes yet.