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Mend.io Vulnerability Database

CVE-2020-27815

Date: May 26, 2021

A flaw was found in the JFS filesystem code in the Linux Kernel which allows a local attacker with the ability to set extended attributes to panic the system, causing memory corruption or escalating privileges. The highest threat from this vulnerability is to confidentiality, integrity, as well as system availability.

Language: C

Severity Score

7.8

Related Resources (19)

Url: https://www.debian.org/security/2021/dsa-4843

Url: https://access.redhat.com/security/cve/CVE-2020-27815

Url: http://www.openwall.com/lists/oss-security/2020/12/28/1

Url: https://github.com/gregkh/linux/commit/c61b3e4839007668360ed8b87d7da96d2e59fc6c

Url: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=c61b3e4839007668360ed8b87d7da96d2e59fc6c

Url: https://nvd.nist.gov/vuln/detail/CVE-2020-27815

Url: https://www.openwall.com/lists/oss-security/2020/11/30/5%2C

Url: https://lists.debian.org/debian-lts-announce/2021/03/msg00010.html

Url: https://lists.debian.org/debian-lts-announce/2021/02/msg00018.html

Url: https://bugzilla.redhat.com/show_bug.cgi?id=1897668,

Url: https://bugzilla.redhat.com/show_bug.cgi?id=1897668%2C

Url: https://people.canonical.com/~ubuntu-security/cve/CVE-2020-27815

Url: https://security-tracker.debian.org/tracker/CVE-2020-27815

Url: https://www.openwall.com/lists/oss-security/2020/12/28/1%2C

Url: https://www.openwall.com/lists/oss-security/2020/11/30/5,

Url: http://www.openwall.com/lists/oss-security/2020/11/30/5

Url: https://www.openwall.com/lists/oss-security/2020/12/28/1,

Url: https://security.netapp.com/advisory/ntap-20210702-0004/

Url: https://www.mend.io/vulnerability-database/CVE-2020-27815

Severity Score

7.8

Weakness Type (CWE)

Buffer Errors

CWE-119

Out-of-bounds Write

CWE-787

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:	6.1
Access Vector (AV):	LOCAL
Access Complexity (AC):	LOW
Authentication (AU):	NONE
Confidentiality (C):	PARTIAL
Integrity (I):	PARTIAL
Availability (A):	COMPLETE
Additional information:

Mend.io Vulnerability Database

We found results for “”

CVE-2020-27815

Date: May 26, 2021

Language: C

Severity Score

Related Resources (19)

Severity Score

Weakness Type (CWE)

CVSS v3.1

CVSS v2

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