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CVE-2021-31292

Date: July 25, 2021

An integer overflow in CrwMap::encode0x1810 of Exiv2 0.27.3 allows attackers to trigger a heap-based buffer overflow and cause a denial of service (DOS) via crafted metadata.

Language: C++

Severity Score

7.5

Related Resources (12)

Url: https://lists.debian.org/debian-lts-announce/2021/08/msg00028.html

Url: https://security-tracker.debian.org/tracker/CVE-2021-31292

Url: https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/UYGDELIFFJWKUU7SO3QATCIXCZJERGAC/

Url: https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/FMDT4PJB7P43WSOM3TRQIY3J33BAFVVE/

Url: https://access.redhat.com/security/cve/CVE-2021-31292

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

Url: https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/FMDT4PJB7P43WSOM3TRQIY3J33BAFVVE/

Url: https://www.debian.org/security/2021/dsa-4958

Url: https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/UYGDELIFFJWKUU7SO3QATCIXCZJERGAC/

Url: https://nvd.nist.gov/vuln/detail/CVE-2021-31292

Url: https://github.com/Exiv2/exiv2/issues/1530

Url: https://www.mend.io/vulnerability-database/CVE-2021-31292

Severity Score

7.5

Weakness Type (CWE)

Integer Overflow or Wraparound

CWE-190

CVSS v3.1

Base Score:	7.5
Attack Vector (AV):	NETWORK
Attack Complexity (AC):	LOW
Privileges Required (PR):	NONE
User Interaction (UI):	NONE
Scope (S):	UNCHANGED
Confidentiality (C):	NONE
Integrity (I):	NONE
Availability (A):	HIGH

CVSS v2

Base Score:	5.0
Access Vector (AV):	NETWORK
Access Complexity (AC):	LOW
Authentication (AU):	NONE
Confidentiality (C):	NONE
Integrity (I):	NONE
Availability (A):	PARTIAL
Additional information:

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