CVE-2020-12826

A signal access-control issue was discovered in the Linux kernel before 5.6.5, aka CID-7395ea4e65c2. Because exec_id in include/linux/sched.h is only 32 bits, an integer overflow can interfere with a do_notify_parent protection mechanism. A child process can send an arbitrary signal to a parent process in a different security domain. Exploitation limitations include the amount of elapsed time before an integer overflow occurs, and the lack of scenarios where signals to a parent process present a substantial operational threat.
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Configurations

Configuration 1 (hide)

cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*

Configuration 2 (hide)

OR cpe:2.3:o:redhat:enterprise_mrg:2.0:*:*:*:*:*:*:*
cpe:2.3:o:canonical:ubuntu_linux:20.04:*:*:*:lts:*:*:*
cpe:2.3:o:redhat:enterprise_linux:5.0:*:*:*:*:*:*:*
cpe:2.3:o:redhat:enterprise_linux:6.0:*:*:*:*:*:*:*
cpe:2.3:o:redhat:enterprise_linux:7.0:*:*:*:*:*:*:*
cpe:2.3:o:redhat:enterprise_linux:8.0:*:*:*:*:*:*:*

Information

Published : 2020-05-12 12:15

Updated : 2021-07-15 12:16


NVD link : CVE-2020-12826

Mitre link : CVE-2020-12826


JSON object : View

CWE
CWE-190

Integer Overflow or Wraparound

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Products Affected

redhat

  • enterprise_mrg
  • enterprise_linux

canonical

  • ubuntu_linux

linux

  • linux_kernel