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CVE-2020-19143

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Date: September 9, 2021

Buffer Overflow in LibTiff v4.0.10 allows attackers to cause a denial of service via the "TIFFVGetField" funtion in the component 'libtiff/tif_dir.c'.

Language: C

Severity Score

6.5

Related Resources (9)

Url: https://www.debian.org/security/2021/dsa-4997

Url: https://people.canonical.com/~ubuntu-security/cve/CVE-2020-19143

Url: https://security-tracker.debian.org/tracker/CVE-2020-19143

Url: https://gitlab.com/libtiff/libtiff/-/issues/158

Url: http://bugzilla.maptools.org/show_bug.cgi?id=2851

Url: https://nvd.nist.gov/vuln/detail/CVE-2020-19143

Url: https://gitlab.com/libtiff/libtiff/-/merge_requests/119

Url: https://security.netapp.com/advisory/ntap-20211004-0005/

Url: https://www.mend.io/vulnerability-database/CVE-2020-19143

Severity Score

6.5

Weakness Type (CWE)

Out-of-bounds Write

CWE-787

Top Fix

Upgrade Version

Upgrade to version v4.2.0

CVSS v3.1

Base Score:	6.5
Attack Vector (AV):	NETWORK
Attack Complexity (AC):	LOW
Privileges Required (PR):	NONE
User Interaction (UI):	REQUIRED
Scope (S):	UNCHANGED
Confidentiality (C):	NONE
Integrity (I):	NONE
Availability (A):	HIGH

CVSS v2

Base Score:	4.3
Access Vector (AV):	NETWORK
Access Complexity (AC):	MEDIUM
Authentication (AU):	NONE
Confidentiality (C):	NONE
Integrity (I):	NONE
Availability (A):	PARTIAL
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