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CVE-2020-25671

Date: May 26, 2021

A vulnerability was found in Linux Kernel, where a refcount leak in llcp_sock_connect() causing use-after-free which might lead to privilege escalations.

Language: C

Severity Score

7.8

Related Resources (16)

Url: https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/UTVACC6PGS6OSD3EYY7FZUAZT2EUMFH5/

Url: https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/PW3OASG7OEMHANDWBM5US5WKTOC76KMH/

Url: https://security-tracker.debian.org/tracker/CVE-2020-25671

Url: https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/VEIEGQXUW37YHZ5MTAZTDCIMHUN26NJS/

Url: https://lists.debian.org/debian-lts-announce/2021/06/msg00019.html

Url: https://bugzilla.redhat.com/show_bug.cgi?id=1894550

Url: https://lists.debian.org/debian-lts-announce/2021/06/msg00020.html

Url: https://people.canonical.com/~ubuntu-security/cve/CVE-2020-25671

Url: https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/UTVACC6PGS6OSD3EYY7FZUAZT2EUMFH5/

Url: https://www.openwall.com/lists/oss-security/2020/11/01/1

Url: https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/VEIEGQXUW37YHZ5MTAZTDCIMHUN26NJS/

Url: https://security.netapp.com/advisory/ntap-20210702-0008/

Url: https://nvd.nist.gov/vuln/detail/CVE-2020-25671

Url: http://www.openwall.com/lists/oss-security/2020/11/01/1

Url: https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/PW3OASG7OEMHANDWBM5US5WKTOC76KMH/

Url: https://www.mend.io/vulnerability-database/CVE-2020-25671

Severity Score

7.8

Weakness Type (CWE)

Use After Free

CWE-416

CVSS v3.1

Base Score:	7.8
Attack Vector (AV):	LOCAL
Attack Complexity (AC):	LOW
Privileges Required (PR):	LOW
User Interaction (UI):	NONE
Scope (S):	UNCHANGED
Confidentiality (C):	HIGH
Integrity (I):	HIGH
Availability (A):	HIGH

CVSS v2

Base Score:	7.2
Access Vector (AV):	LOCAL
Access Complexity (AC):	LOW
Authentication (AU):	NONE
Confidentiality (C):	COMPLETE
Integrity (I):	COMPLETE
Availability (A):	COMPLETE
Additional information:

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