1. Home
  2. Vulnerabilities
  3. CVE-2021-38166

CVE-2021-38166

CVSS v3.1 7.8 (High)
78% Progress
CVSS v2.0 4.6 (Medium)
46% Progress
EPSS 0.04 % (15th)
0.04% Progress
Affected Products 3
Advisories 11
Info CVSS EPSS CAPEC Affected Configurations References Security Advisories Packages & Software OVAL Tools, Exploits & PoC Graph Web & Social Timeline

In kernel/bpf/hashtab.c in the Linux kernel through 5.13.8, there is an integer overflow and out-of-bounds write when many elements are placed in a single bucket. NOTE: exploitation might be impractical without the CAP_SYS_ADMIN capability.

Weaknesses
CWE-190
Integer Overflow or Wraparound
CWE-787
Out-of-bounds Write
CVE Status
PUBLISHED
CNA
MITRE
Published Date
2021-08-07 18:15:07
(3 years ago)
Updated Date
2023-11-07 03:37:22
(10 months ago)

Affected Products

Debian

Fedoraproject

Linux

Configuration #1

    CPE23 From Up To
  Linux Kernel 5.13.8 and prior versions cpe:2.3:o:linux:linux_kernel <= 5.13.8

Configuration #2

    CPE23 From Up To
  Fedoraproject Fedora 33 cpe:2.3:o:fedoraproject:fedora:33
  Fedoraproject Fedora 34 cpe:2.3:o:fedoraproject:fedora:34

Configuration #3

    CPE23 From Up To
  Debian Linux 11.0 cpe:2.3:o:debian:debian_linux:11.0