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CVE-2019-20421

Date: January 26, 2020

In Jp2Image::readMetadata() in jp2image.cpp in Exiv2 0.27.2, an input file can result in an infinite loop and hang, with high CPU consumption. Remote attackers could leverage this vulnerability to cause a denial of service via a crafted file.

Language: C

Severity Score

Related Resources (11)

https://github.com/Exiv2/exiv2/commit/a82098f4f90cd86297131b5663c3dec6a34470e8
https://lists.debian.org/debian-lts-announce/2021/08/msg00028.html
https://security-tracker.debian.org/tracker/CVE-2019-20421
https://nvd.nist.gov/vuln/detail/CVE-2019-20421
https://security.alpinelinux.org/vuln/CVE-2019-20421
https://access.redhat.com/security/cve/CVE-2019-20421
https://people.canonical.com/~ubuntu-security/cve/CVE-2019-20421
https://usn.ubuntu.com/4270-1/
https://www.debian.org/security/2021/dsa-4958
https://github.com/Exiv2/exiv2/issues/1011
https://www.mend.io/vulnerability-database/CVE-2019-20421

Severity Score

Weakness Type (CWE)

Loop with Unreachable Exit Condition ('Infinite Loop')

CWE-835

CVSS v3.1

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

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