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CVE-2020-18773

Date: August 22, 2021

An invalid memory access in the decode function in iptc.cpp of Exiv2 0.27.99.0 allows attackers to cause a denial of service (DOS) via a crafted tif file.

Language: C++

Severity Score

6.5

Related Resources (6)

Url: https://security-tracker.debian.org/tracker/CVE-2020-18773

Url: https://security.gentoo.org/glsa/202312-06

Url: https://github.com/Exiv2/exiv2/issues/760

Url: https://people.canonical.com/~ubuntu-security/cve/CVE-2020-18773

Url: https://nvd.nist.gov/vuln/detail/CVE-2020-18773

Url: https://www.mend.io/vulnerability-database/CVE-2020-18773

Severity Score

6.5

Weakness Type (CWE)

Buffer Errors

CWE-119

Out-of-bounds Write

CWE-787

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
Additional information:

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