CVE-2022-1016

Description

A flaw was found in the Linux kernel in net/netfilter/nf_tables_core.c:nft_do_chain, which can cause a use-after-free. This issue needs to handle 'return' with proper preconditions, as it can lead to a kernel information leak problem caused by a local, unprivileged attacker.

CVSS Metrics

• v3.1•MEDIUM•Score: 5.5CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N

EPSS Trends

Current EPSS score: 0.01%• Percentile: 3%

Techniques & Countermeasures

• CWE-909•Missing Initialization of Resource

  The product does not initialize a critical resource.

• CWE-824•Access of Uninitialized Pointer

  The product accesses or uses a pointer that has not been initialized.

Affected Systems

• linux•linux_kernel

  ≤ 3.12 | ≥ 3.13, ≤ 5.17 | 3.13:rc1

• redhat•enterprise_linux

  8.0 | 9.0

References (4)

• http://blog.dbouman.nl/2022/04/02/How-The-Tables-Have-Turned-CVE-2022-1015-1016/
• https://seclists.org/oss-sec/2022/q1/205
• https://bugzilla.redhat.com/show_bug.cgi?id=2066614
• https://access.redhat.com/security/cve/CVE-2022-1016