DEBIAN-CVE-2020-12826
Dashboard / Vulnerabilities / DEBIAN-CVE-2020-12826
Summary:
Details: 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.
Affected packages
Package
Name: linux
Purl: pkg:deb/debian/linux?arch=source&distro=bookworm
Affected ranges
Type: ECOSYSTEM
Events:
Introduced- 0
Fixed -5.6.7-1
Affected versions
Common Vulnerability Scoring System
Attack Vector
Network
Adjacent
Local
Physical
Privileges Required
None
Low
High
User Interaction
None
Required
Scope
Unchanged
Changed
Confidentiality
None
Low
High
Integrity
None
Low
High
Availability
None
Low
High
