Ubuntu.comUB:CVE-2023-4244CVE-2023-4244
7 High
CVSS3
Attack Vector
LOCAL
Attack Complexity
HIGH
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
3.5 Low
CVSS2
Access Vector
LOCAL
Access Complexity
HIGH
Authentication
SINGLE
Confidentiality Impact
PARTIAL
Integrity Impact
PARTIAL
Availability Impact
PARTIAL
AV:L/AC:H/Au:S/C:P/I:P/A:P
0.0004 Low
EPSS
Percentile
5.2%
A use-after-free vulnerability in the Linux kernel’s netfilter: nf_tables
component can be exploited to achieve local privilege escalation. Due to a
race condition between nf_tables netlink control plane transaction and
nft_set element garbage collection, it is possible to underflow the
reference counter causing a use-after-free vulnerability. We recommend
upgrading past commit 3e91b0ebd994635df2346353322ac51ce84ce6d8.
Bugs
- <https://bugzilla.redhat.com/show_bug.cgi?id=2235306>
- <https://bugzilla.suse.com/show_bug.cgi?id=1215420>
Notes
| Author | Note |
|---|---|
| Priority reason: Allows local code execution / privilege escalation | |
| cascardo | Looks like a duplicate of CVE-2023-4563 |
| rodrigo-zaiden | CVE-2023-4563 was marked as duplicated of this. USN-6443-1 was firstly announced fixing this CVE for linux-oem-6.1 in version 6.1.0-1024.24, but one of the fix commits was missing in that version. The complete fix in linux-oem-6.1 is available in version 6.1.0-1025.25. |
| OS | Version | Architecture | Package | Version | Filename |
|---|---|---|---|---|---|
| ubuntu | 18.04 | noarch | linux | < any | UNKNOWN |
| ubuntu | 20.04 | noarch | linux | < 5.4.0-173.191 | UNKNOWN |
| ubuntu | 22.04 | noarch | linux | < 5.15.0-87.97 | UNKNOWN |
| ubuntu | 23.04 | noarch | linux | < 6.2.0-35.35 | UNKNOWN |
| ubuntu | 23.10 | noarch | linux | < 6.5.0-13.13 | UNKNOWN |
| ubuntu | 16.04 | noarch | linux | < any | UNKNOWN |
| ubuntu | 18.04 | noarch | linux-aws | < any | UNKNOWN |
| ubuntu | 20.04 | noarch | linux-aws | < 5.4.0-1120.130 | UNKNOWN |
| ubuntu | 22.04 | noarch | linux-aws | < 5.15.0-1048.53 | UNKNOWN |
| ubuntu | 23.04 | noarch | linux-aws | < 6.2.0-1014.14 | UNKNOWN |
References
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=3e91b0ebd994635df2346353322ac51ce84ce6d8
kernel.dance/3e91b0ebd994635df2346353322ac51ce84ce6d8
launchpad.net/bugs/cve/CVE-2023-4244
nvd.nist.gov/vuln/detail/CVE-2023-4244
security-tracker.debian.org/tracker/CVE-2023-4244
ubuntu.com/security/notices/USN-6443-1
ubuntu.com/security/notices/USN-6444-1
ubuntu.com/security/notices/USN-6444-2
ubuntu.com/security/notices/USN-6445-1
ubuntu.com/security/notices/USN-6445-2
ubuntu.com/security/notices/USN-6446-1
ubuntu.com/security/notices/USN-6446-2
ubuntu.com/security/notices/USN-6446-3
ubuntu.com/security/notices/USN-6461-1
ubuntu.com/security/notices/USN-6466-1
ubuntu.com/security/notices/USN-6503-1
ubuntu.com/security/notices/USN-6537-1
ubuntu.com/security/notices/USN-6572-1
ubuntu.com/security/notices/USN-6681-1
ubuntu.com/security/notices/USN-6681-2
ubuntu.com/security/notices/USN-6681-3
ubuntu.com/security/notices/USN-6681-4
ubuntu.com/security/notices/USN-6716-1
www.cve.org/CVERecord?id=CVE-2023-4244
Related
7 High
CVSS3
Attack Vector
LOCAL
Attack Complexity
HIGH
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
3.5 Low
CVSS2
Access Vector
LOCAL
Access Complexity
HIGH
Authentication
SINGLE
Confidentiality Impact
PARTIAL
Integrity Impact
PARTIAL
Availability Impact
PARTIAL
AV:L/AC:H/Au:S/C:P/I:P/A:P
0.0004 Low
EPSS
Percentile
5.2%