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CVE-2021-20265

Status Candidate

Overview

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.

Related Files

Red Hat Security Advisory 2021-1288-01
Posted Apr 20, 2021
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2021-1288-01 - The kernel packages contain the Linux kernel, the core of any Linux operating system. Issues addressed include buffer overflow, denial of service, out of bounds read, and use-after-free vulnerabilities.

tags | advisory, denial of service, overflow, kernel, vulnerability
systems | linux, redhat
advisories | CVE-2020-29661, CVE-2021-20265, CVE-2021-27364, CVE-2021-27365
SHA-256 | 9c60a61a3776daa86b179eb717f96ed14b2dbca64e254ce97ef039b80693d81f
Red Hat Security Advisory 2021-0857-01
Posted Mar 17, 2021
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2021-0857-01 - The kernel-rt packages provide the Real Time Linux Kernel, which enables fine-tuning for systems with extremely high determinism requirements. Issues addressed include buffer overflow, denial of service, out of bounds read, out of bounds write, and use-after-free vulnerabilities.

tags | advisory, denial of service, overflow, kernel, vulnerability
systems | linux, redhat
advisories | CVE-2019-19532, CVE-2020-0427, CVE-2020-14351, CVE-2020-25211, CVE-2020-25645, CVE-2020-25656, CVE-2020-25705, CVE-2020-28374, CVE-2020-29661, CVE-2020-7053, CVE-2021-20265
SHA-256 | 52b1ba89ad5b5b01bc9fbbc0c26885b43edd807f81c5a3811079118a010cfd3f
Red Hat Security Advisory 2021-0856-01
Posted Mar 17, 2021
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2021-0856-01 - The kernel packages contain the Linux kernel, the core of any Linux operating system. Issues addressed include buffer overflow, denial of service, out of bounds read, out of bounds write, and use-after-free vulnerabilities.

tags | advisory, denial of service, overflow, kernel, vulnerability
systems | linux, redhat
advisories | CVE-2019-19532, CVE-2020-0427, CVE-2020-14351, CVE-2020-25211, CVE-2020-25645, CVE-2020-25656, CVE-2020-25705, CVE-2020-28374, CVE-2020-29661, CVE-2020-7053, CVE-2021-20265
SHA-256 | 848127b0ce6b0e3e3f3e313979c52ece03f0429de6169b74b851dff3a01ddcda
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