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CVE-2021-3744

Date: March 4, 2022

A memory leak flaw was found in the Linux kernel in the ccp_run_aes_gcm_cmd() function in drivers/crypto/ccp/ccp-ops.c, which allows attackers to cause a denial of service (memory consumption). This vulnerability is similar with the older CVE-2019-18808.

Severity Score

Related Resources (21)

https://bugzilla.redhat.com/show_bug.cgi?id=2000627
https://access.redhat.com/errata/RHSA-2022:1988
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/LAT3RERO6QBKSPJBNNRWY3D4NCGTFOS7/
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/SYKURLXBB2555ASWMPDNMBUPD6AG2JKQ/
https://access.redhat.com/errata/RHSA-2022:1975
https://github.com/torvalds/linux/commit/505d9dcb0f7ddf9d075e729523a33d38642ae680
https://access.redhat.com/security/cve/CVE-2021-3744
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/LAT3RERO6QBKSPJBNNRWY3D4NCGTFOS7/
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/7BLLVKYAIETEORUPTFO3TR3C33ZPFXQM/
https://security-tracker.debian.org/tracker/CVE-2021-3744
https://kernel.googlesource.com/pub/scm/linux/kernel/git/herbert/crypto-2.6/+/505d9dcb0f7ddf9d075e729523a33d38642ae680%5E%21/#F0
https://people.canonical.com/~ubuntu-security/cve/CVE-2021-3744
https://seclists.org/oss-sec/2021/q3/164
https://lists.debian.org/debian-lts-announce/2022/03/msg00012.html
https://www.debian.org/security/2022/dsa-5096
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/7BLLVKYAIETEORUPTFO3TR3C33ZPFXQM/
https://www.oracle.com/security-alerts/cpujul2022.html
https://nvd.nist.gov/vuln/detail/CVE-2021-3744
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/SYKURLXBB2555ASWMPDNMBUPD6AG2JKQ/
http://www.openwall.com/lists/oss-security/2021/09/14/1
https://www.mend.io/vulnerability-database/CVE-2021-3744

Severity Score

Weakness Type (CWE)

Missing Release of Memory after Effective Lifetime

CWE-401

CVSS v3.1

Base Score:
Attack Vector (AV): LOCAL
Attack Complexity (AC): LOW
Privileges Required (PR): LOW
User Interaction (UI): NONE
Scope (S): UNCHANGED
Confidentiality (C): NONE
Integrity (I): NONE
Availability (A): HIGH

CVSS v2

Base Score:
Access Vector (AV): LOCAL
Access Complexity (AC): LOW
Authentication (AU): NONE
Confidentiality (C): NONE
Integrity (I): NONE
Availability (A): PARTIAL
Additional information:

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