CVE-2021-20265

Summary

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 highest threat from this vulnerability is to system availability.

Affected Software

Weaknesses

• CWE-400: CWE-400

ADP Enrichment

CVE Program Container

Additional References

• https://bugzilla.redhat.com/show_bug.cgi?id=1908827
• https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=fa0dc04df259ba2df3ce1920e9690c7842f8fa4b
• https://www.oracle.com/security-alerts/cpuoct2021.html

References

• https://bugzilla.redhat.com/show_bug.cgi?id=1908827
• https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=fa0dc04df259ba2df3ce1920e9690c7842f8fa4b
• https://www.oracle.com/security-alerts/cpuoct2021.html

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