medium
5.5
CWE
401
Advisory Published
CVE Published
Updated

CVE-2021-3744

First published: Fri Aug 20 2021(Updated: )

A flaw was found in the Linux kernel. A memory leak in the ccp-ops crypto driver can allow attackers to cause a denial of service. This vulnerability is similar with the older CVE-2019-18808. The highest threat from this vulnerability is to system availability.

Credit: secalert@redhat.com secalert@redhat.com

Affected SoftwareAffected VersionHow to fix
redhat/kernel-rt<0:4.18.0-372.9.1.rt7.166.el8
0:4.18.0-372.9.1.rt7.166.el8
redhat/kernel<0:4.18.0-372.9.1.el8
0:4.18.0-372.9.1.el8
Linux Linux kernel<5.15
Linux Linux kernel=5.15
Linux Linux kernel=5.15-rc1
Linux Linux kernel=5.15-rc2
Linux Linux kernel=5.15-rc3
Fedoraproject Fedora=33
Fedoraproject Fedora=34
Fedoraproject Fedora=35
Debian Debian Linux=9.0
Debian Debian Linux=10.0
Redhat Build Of Quarkus=2.0
Redhat Codeready Linux Builder=8.0
Redhat Codeready Linux Builder Eus=8.6
Redhat Codeready Linux Builder For Power Little Endian=8.0
Redhat Codeready Linux Builder For Power Little Endian Eus=8.6
Redhat Developer Tools=1.0
Redhat Enterprise Linux Eus=8.6
Redhat Enterprise Linux For Ibm Z Systems Eus=8.6
Redhat Enterprise Linux For Power Little Endian Eus=8.6
Redhat Enterprise Linux For Real Time=8
Redhat Enterprise Linux For Real Time=8.6
Redhat Enterprise Linux For Real Time For Nfv=8
Redhat Enterprise Linux For Real Time For Nfv Tus=8.6
Redhat Enterprise Linux Server Eus=8.6
Redhat Enterprise Linux Server For Power Little Endian Update Services For Sap Solutions=8.6
Redhat Enterprise Linux Server Tus=8.6
Redhat Enterprise Linux Server Update Services For Sap Solutions=8.6
Redhat Virtualization Host=4.0
Redhat Enterprise Linux=8.0
Oracle Communications Cloud Native Core Binding Support Function=22.1.3
Oracle Communications Cloud Native Core Network Exposure Function=22.1.1
Oracle Communications Cloud Native Core Policy=22.2.0
All of
Redhat Virtualization Host=4.0
Redhat Enterprise Linux=8.0
debian/linux
5.10.223-1
5.10.226-1
6.1.115-1
6.1.112-1
6.11.5-1
6.11.7-1

Remedy

Mitigation for this issue is either not available or the currently available options don't meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation baser or stability.

Remedy

https://github.com/torvalds/linux/commit/505d9dcb0f7ddf9d075e729523a33d38642ae680

Remedy

https://kernel.googlesource.com/pub/scm/linux/kernel/git/herbert/crypto-2.6/+/505d9dcb0f7ddf9d075e729523a33d38642ae680%5E%21/#F0

Remedy

https://seclists.org/oss-sec/2021/q3/164

Remedy

https://www.oracle.com/security-alerts/cpujul2022.html

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