Resource exhaustion in Linux Linux_kernel
CVE-2021-20265
A flaw was found in the way memory resources were freed in the unix_stream_recvmsg function in the Linux kernel when a signal was pending. This flaw allows an unprivileged local user to crash the system by exhausting available memory. The…
Vulnerability class: DoS (Denial of Service)
EPSS: 0.003 (26.2th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 5.5 (Medium). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H.
Affected products
- Linux Linux_kernel
- Oracle Tekelec_platform_distribution
- N/a Kernel — versions Linux kernel 4.5-rc3
Weakness classification (CWE)
Public proof-of-concept exploits
References
- secalert@redhat.com (Patch, Third Party Advisory, x_refsource_MISC, Issue Tracking)
- secalert@redhat.com (Patch, x_refsource_MISC, Vendor Advisory)
- secalert@redhat.com (Patch, Third Party Advisory, x_refsource_MISC)
Frequently asked questions
- What is CVE-2021-20265?
- CVE-2021-20265 is a medium-severity vulnerability in Linux Linux_kernel, classified under Uncontrolled Resource Consumption. CVSS score: 5.5/10. Published 2021-03-10.
- How severe is CVE-2021-20265?
- Medium severity. CVSS v3 base score is 5.5 out of 10.
- Is CVE-2021-20265 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.