CVE-2022-2078

Description

A vulnerability was found in the Linux kernel's nft_set_desc_concat_parse() function .This flaw allows an attacker to trigger a buffer overflow via nft_set_desc_concat_parse() , causing a denial of service and possibly to run code.

CVSS Metrics

• v3.1•MEDIUM•Score: 5.5CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
• v2.0•LOW•Score: 2.1AV:L/AC:L/Au:N/C:N/I:N/A:P

EPSS Trends

Current EPSS score: 0.59%• Percentile: 70%

Techniques & Countermeasures

• CWE-120•Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')

  The product copies an input buffer to an output buffer without verifying that the size of the input buffer is less than the size of the output buffer.

• CWE-121•Stack-based Buffer Overflow

  A stack-based buffer overflow condition is a condition where the buffer being overwritten is allocated on the stack (i.e., is a local variable or, rarely, a parameter to a function).

Affected Systems

• debian•debian_linux

  11.0

• linux•linux_kernel

  < 5.19

• redhat•enterprise_linux

  8.0 | 9.0

• redhat•virtualization

  4.0

References (3)

• https://www.debian.org/security/2022/dsa-5161
• https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/net/netfilter/nf_tables_api.c?id=fecf31ee395b0295f2d7260aa29946b7605f7c85
• https://bugzilla.redhat.com/show_bug.cgi?id=2096178