Vulnerability in Linux Kernel
CVE-2023-4569
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.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 5.5 (Medium). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N.
EPSS exploit prediction
EPSS: 0.003 (17.4th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 17th percentile — 17.4% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.003 · newest: 0.003 · change: -0.000
Affected products
- Linux Kernel — versions 6.5
- Debian Linux — versions 12.0
- Fedora
- Red Hat Enterprise Linux 6
- Red Hat Enterprise Linux 7
- Red Hat Enterprise Linux 8
- Red Hat Enterprise Linux 9
- Red Hat Enterprise Linux — versions 8.0, 9.0
- Kernel — versions 6.5-rc7
Weakness classification (CWE)
Public proof-of-concept exploits
References
- access.redhat.com/security/cve/CVE-2023-4569 (Third Party Advisory, vdb-entry)
- bugzilla.redhat.com/show_bug.cgi (issue-tracking, Patch, Third Party Advisory, Issue Tracking)
- patchwork.ozlabs.org/project/netfilter-devel/patch/20230812110526.49808-1-fw@st… (Patch, Mailing List)
- www.debian.org/security/2023/dsa-5492 (Third Party Advisory)
Frequently asked questions
- What is CVE-2023-4569?
- CVE-2023-4569 is a medium-severity vulnerability in Linux Kernel, classified under CWE-402. CVSS score: 5.5/10. Published 2023-08-28.
- How severe is CVE-2023-4569?
- Medium severity. CVSS v3 base score is 5.5 out of 10.
- Is CVE-2023-4569 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.