Vulnerability Details : CVE-2023-6622
A null pointer dereference vulnerability was found in nft_dynset_init() in net/netfilter/nft_dynset.c in nf_tables in the Linux kernel. This issue may allow a local attacker with CAP_NET_ADMIN user privilege to trigger a denial of service.
Vulnerability category: Memory CorruptionDenial of service
Products affected by CVE-2023-6622
- cpe:2.3:o:redhat:enterprise_linux:8.0:*:*:*:*:*:*:*
- cpe:2.3:o:redhat:enterprise_linux:9.0:*:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:6.7:rc1:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:6.7:rc2:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:6.7:rc3:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:6.7:rc4:*:*:*:*:*:*
Exploit prediction scoring system (EPSS) score for CVE-2023-6622
0.04%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 9 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2023-6622
| Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
|---|---|---|---|---|---|---|
|
5.5
|
MEDIUM | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H |
1.8
|
3.6
|
NIST | |
|
5.5
|
MEDIUM | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H |
1.8
|
3.6
|
Red Hat, Inc. | |
|
5.5
|
MEDIUM | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H |
N/A
|
N/A
|
RedHat-CVE-2023-6622 |
CWE ids for CVE-2023-6622
-
The product dereferences a pointer that it expects to be valid but is NULL.Assigned by:
- nvd@nist.gov (Primary)
- secalert@redhat.com (Secondary)
References for CVE-2023-6622
-
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/AAOVK2F3ALGKYIQ5IOMAYEC2DGI7BWAW/
[SECURITY] Fedora 38 Update: kernel-6.6.7-100.fc38 - package-announce - Fedora Mailing-Lists
-
https://access.redhat.com/security/cve/CVE-2023-6622
CVE-2023-6622- Red Hat Customer PortalThird Party Advisory
-
https://access.redhat.com/errata/RHSA-2024:2950
RHSA-2024:2950 - Security Advisory - Red Hat Customer Portal
-
https://access.redhat.com/errata/RHSA-2024:3138
RHSA-2024:3138 - Security Advisory - Red Hat Customer Portal
-
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/G3AGDVE3KBLOOYBPISFDS74R4YAZEDAY/
[SECURITY] Fedora 39 Update: kernel-6.6.7-200.fc39 - package-announce - Fedora Mailing-Lists
-
https://bugzilla.redhat.com/show_bug.cgi?id=2253632
2253632 – (CVE-2023-6622) CVE-2023-6622 kernel: null pointer dereference vulnerability in nft_dynset_init()Issue Tracking;Patch
-
https://access.redhat.com/errata/RHSA-2024:2394
RHSA-2024:2394 - Security Advisory - Red Hat Customer Portal
-
https://github.com/torvalds/linux/commit/3701cd390fd731ee7ae8b8006246c8db82c72bea
netfilter: nf_tables: bail out on mismatching dynset and set expressions · torvalds/linux@3701cd3 · GitHubPatch
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