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CVE-2021-45402

CVSS v3.1 5.5 (Medium)
55% Progress
CVSS v2.0 2.1 (Low)
21% Progress
EPSS 0.04 % (5th)
0.04% Progress
Affected Products 1
Advisories 9
Info CVSS EPSS Affected Configurations References Security Advisories Packages & Software OVAL Tools, Exploits & PoC Graph Web & Social Timeline

The check_alu_op() function in kernel/bpf/verifier.c in the Linux kernel through v5.16-rc5 did not properly update bounds while handling the mov32 instruction, which allows local users to obtain potentially sensitive address information, aka a "pointer leak."

Weaknesses
CWE-668
Exposure of Resource to Wrong Sphere
CVE Status
PUBLISHED
CNA
MITRE
Published Date
2022-02-11 15:15:07
(2 years ago)
Updated Date
2022-02-23 18:12:39
(2 years ago)

Affected Products

Linux

Configuration #1

    CPE23 From Up To
  Linux Kernel prior 5.16 version cpe:2.3:o:linux:linux_kernel < 5.16
  Linux Kernel 5.16 Rc1 cpe:2.3:o:linux:linux_kernel:5.16:rc1
  Linux Kernel 5.16 Rc2 cpe:2.3:o:linux:linux_kernel:5.16:rc2
  Linux Kernel 5.16 Rc3 cpe:2.3:o:linux:linux_kernel:5.16:rc3
  Linux Kernel 5.16 Rc4 cpe:2.3:o:linux:linux_kernel:5.16:rc4
  Linux Kernel 5.16 Rc5 cpe:2.3:o:linux:linux_kernel:5.16:rc5