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CVE-2021-34693

Date: June 13, 2021

net/can/bcm.c in the Linux kernel through 5.12.10 allows local users to obtain sensitive information from kernel stack memory because parts of a data structure are uninitialized.

Severity Score

5.5

Related Resources (13)

Url: https://lore.kernel.org/netdev/trinity-87eaea25-2a7d-4aa9-92a5-269b822e5d95-1623609211076@3c-app-gmx-bs04/T/

Url: https://www.debian.org/security/2021/dsa-4941

Url: https://security-tracker.debian.org/tracker/CVE-2021-34693

Url: https://nvd.nist.gov/vuln/detail/CVE-2021-34693

Url: http://www.openwall.com/lists/oss-security/2021/06/15/1

Url: https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=5e87ddbe3942e27e939bdc02deb8579b0cbd8ecc

Url: https://access.redhat.com/security/cve/CVE-2021-34693

Url: https://lore.kernel.org/netdev/trinity-87eaea25-2a7d-4aa9-92a5-269b822e5d95-1623609211076%403c-app-gmx-bs04/T/

Url: https://people.canonical.com/~ubuntu-security/cve/CVE-2021-34693

Url: https://lists.debian.org/debian-lts-announce/2021/07/msg00016.html

Url: https://lists.debian.org/debian-lts-announce/2021/07/msg00014.html

Url: https://lists.debian.org/debian-lts-announce/2021/07/msg00015.html

Url: https://www.mend.io/vulnerability-database/CVE-2021-34693

Severity Score

5.5

Weakness Type (CWE)

Missing Initialization of Resource

CWE-909

CVSS v3.1

Base Score:	5.5
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

CVSS v2

Base Score:	2.1
Access Vector (AV):	LOCAL
Access Complexity (AC):	LOW
Authentication (AU):	NONE
Confidentiality (C):	PARTIAL
Integrity (I):	NONE
Availability (A):	NONE
Additional information:

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