7.8 High
CVSS3
Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
0.0004 Low
EPSS
Percentile
5.1%
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).
OS | Version | Architecture | Package | Version | Filename |
---|---|---|---|---|---|
ubuntu | 22.04 | noarch | linux | < 5.15.0-78.85 | UNKNOWN |
ubuntu | 23.04 | noarch | linux | < 6.2.0-26.26 | UNKNOWN |
ubuntu | 24.04 | noarch | linux | < any | UNKNOWN |
ubuntu | 22.04 | noarch | linux-aws | < 5.15.0-1040.45 | UNKNOWN |
ubuntu | 23.04 | noarch | linux-aws | < 6.2.0-1008.8 | UNKNOWN |
ubuntu | 24.04 | noarch | linux-aws | < any | UNKNOWN |
ubuntu | 20.04 | noarch | linux-aws-5.15 | < 5.15.0-1040.45~20.04.1 | UNKNOWN |
ubuntu | 22.04 | noarch | linux-aws-5.19 | < 5.19.0-1029.30~22.04.1 | UNKNOWN |
ubuntu | 22.04 | noarch | linux-azure | < 5.15.0-1042.49 | UNKNOWN |
ubuntu | 23.04 | noarch | linux-azure | < 6.2.0-1008.8 | UNKNOWN |
git.kernel.org/linus/9ca9fb24d5febccea354089c41f96a8ad0d853f8
git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?h=linux-5.10.y&id=4716c73b188566865bdd79c3a6709696a224ac04
git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?h=linux-5.15.y&id=0e388fce7aec40992eadee654193cad345d62663
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=ef7dfac51d8ed961b742218f526bd589f3900a59
kernel.dance/0e388fce7aec40992eadee654193cad345d62663
kernel.dance/4716c73b188566865bdd79c3a6709696a224ac04
kernel.dance/ef7dfac51d8ed961b742218f526bd589f3900a59
launchpad.net/bugs/cve/CVE-2023-3389
nvd.nist.gov/vuln/detail/CVE-2023-3389
security-tracker.debian.org/tracker/CVE-2023-3389
ubuntu.com/security/notices/USN-6246-1
ubuntu.com/security/notices/USN-6248-1
ubuntu.com/security/notices/USN-6249-1
ubuntu.com/security/notices/USN-6250-1
ubuntu.com/security/notices/USN-6255-1
ubuntu.com/security/notices/USN-6260-1
www.cve.org/CVERecord?id=CVE-2023-3389