Kernel: information leak in nft_set_catchall_flush in net/netfilter/nf_tables_api.c
CVE-2023-4569

5.5MEDIUM

Key Information:

Vendor

Red Hat
Status
Kernel
Red Hat Enterprise Linux 6
Red Hat Enterprise Linux 7
Red Hat Enterprise Linux 8
Vendor
CVE Published:
28 August 2023

What is 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.

Affected Version(s)

Kernel 6.5-rc7

References

https://access.redhat.com/security/cve/CVE-2023-4569
vdb-entryx_refsource_REDHAT
https://bugzilla.redhat.com/show_bug.cgi?id=2235470
issue-trackingx_refsource_REDHAT
https://patchwork.ozlabs.org/project/netfilter-devel/patc...

CVSS V3.1

Score:
5.5
Severity:
MEDIUM
Confidentiality:
None
Integrity:
None
Availability:
None
Attack Vector:
Local
Attack Complexity:
Low
Privileges Required:
Low
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.