UBUNTU-CVE-2021-4154
Dashboard / Vulnerabilities / UBUNTU-CVE-2021-4154
Summary:
Details: A use-after-free flaw was found in cgroup1_parse_param in kernel/cgroup/cgroup-v1.c in the Linux kernel's cgroup v1 parser. A local attacker with a user privilege could cause a privilege escalation by exploiting the fsconfig syscall parameter leading to a container breakout and a denial of service on the system.
References: https://ubuntu.com/security/CVE-2021-4154, https://git.kernel.org/linus/3b0462726e7ef281c35a7a4ae33e93ee2bc9975b, https://www.cve.org/CVERecord?id=CVE-2021-4154
Affected packages
Package
Name: linux-hwe-edge
Purl: pkg:deb/ubuntu/linux-hwe-edge?arch=source&distro=xenial
Affected ranges
Type: ECOSYSTEM
Events:
Introduced- 0
Fixed -None
Affected versions
4.8.0-28.30~16.04.1
4.8.0-30.32~16.04.1
4.8.0-32.34~16.04.1
4.8.0-34.36~16.04.1
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
