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CVE-2021-3736

Date: August 23, 2022

A flaw was found in the Linux kernel. A memory leak problem was found in mbochs_ioctl in samples/vfio-mdev/mbochs.c in Virtual Function I/O (VFIO) Mediated devices. This flaw could allow a local attacker to leak internal kernel information.

Severity Score

Related Resources (7)

https://nvd.nist.gov/vuln/detail/CVE-2021-3736
https://github.com/torvalds/linux/commit/de5494af4815a4c9328536c72741229b7de88e7f
https://security-tracker.debian.org/tracker/CVE-2021-3736
https://people.canonical.com/~ubuntu-security/cve/CVE-2021-3736
https://access.redhat.com/security/cve/CVE-2021-3736
https://bugzilla.redhat.com/show_bug.cgi?id=1995570
https://www.mend.io/vulnerability-database/CVE-2021-3736

Severity Score

Weakness Type (CWE)

Information Leak / Disclosure

CWE-200

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): HIGH
Integrity (I): NONE
Availability (A): NONE

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