CVSS3
Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
EPSS
Percentile
5.1%
A memory leak flaw was found in nft_set_catchall_flush in
net/netfilter/nf_tables_api.c in the Linux Kernel. This issue may allow a
local attacker to cause double-deactivations of catchall elements, which
can result in a memory leak.
Author | Note |
---|---|
Priority reason: By using unprivileged user namespaces, this can be exploited to achieve local privilege escalation. |
OS | Version | Architecture | Package | Version | Filename |
---|---|---|---|---|---|
ubuntu | 22.04 | noarch | linux | < 5.15.0-84.93 | UNKNOWN |
ubuntu | 23.04 | noarch | linux | < 6.2.0-33.33 | UNKNOWN |
ubuntu | 22.04 | noarch | linux-aws | < 5.15.0-1045.50 | UNKNOWN |
ubuntu | 23.04 | noarch | linux-aws | < 6.2.0-1012.12 | UNKNOWN |
ubuntu | 20.04 | noarch | linux-aws-5.15 | < 5.15.0-1045.50~20.04.1 | UNKNOWN |
ubuntu | 22.04 | noarch | linux-aws-6.2 | < 6.2.0-1012.12~22.04.1 | UNKNOWN |
ubuntu | 22.04 | noarch | linux-azure | < 5.15.0-1047.54 | UNKNOWN |
ubuntu | 23.04 | noarch | linux-azure | < 6.2.0-1012.12 | UNKNOWN |
ubuntu | 20.04 | noarch | linux-azure-5.15 | < 5.15.0-1047.54~20.04.1 | UNKNOWN |
ubuntu | 22.04 | noarch | linux-azure-6.2 | < 6.2.0-1012.12~22.04.1 | UNKNOWN |
access.redhat.com/security/cve/CVE-2023-4569
launchpad.net/bugs/cve/CVE-2023-4569
nvd.nist.gov/vuln/detail/CVE-2023-4569
patchwork.ozlabs.org/project/netfilter-devel/patch/[email protected]/
security-tracker.debian.org/tracker/CVE-2023-4569
ubuntu.com/security/notices/USN-6383-1
ubuntu.com/security/notices/USN-6384-1
ubuntu.com/security/notices/USN-6385-1
ubuntu.com/security/notices/USN-6386-1
ubuntu.com/security/notices/USN-6386-2
ubuntu.com/security/notices/USN-6386-3
ubuntu.com/security/notices/USN-6466-1
www.cve.org/CVERecord?id=CVE-2023-4569