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CVE-2021-37615

Null pointer dereference in Exiv2::Internal::resolveLens0x319

Published: Aug 9, 2021Updated: Nov 21, 2024 Sources: CVE List NVD BDUCWE-476
NVD MITRE
4.7CVSSMEDIUM
EPSS Score
1.0%
Top 42.1%
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
Patch Available

Description

Exiv2 is a command-line utility and C++ library for reading, writing, deleting, and modifying the metadata of image files. A null pointer dereference was found in Exiv2 versions v0.27.4 and earlier. The null pointer dereference is triggered when Exiv2 is used to print the metadata of a crafted image file. An attacker could potentially exploit the vulnerability to cause a denial of service, if they can trick the victim into running Exiv2 on a crafted image file. Note that this bug is only triggered when printing the interpreted (translated) data, which is a less frequently used Exiv2 operation that requires an extra command line option (`-p t` or `-P t`). The bug is fixed in version v0.27.5.

CVSS Vector Breakdown

AV:LAC:HPR:NUI:RS:UC:NI:NA:H
Exploitability
AV:LAttack Vector
Local
AC:HAttack Complexity
High
PR:NPrivileges Required
None
UI:RUser Interaction
Required
Scope
S:UScope
Unchanged
Impact
C:NConfidentiality
None
I:NIntegrity
None
A:HAvailability
High
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Weaknesses

CWE-476

Affected Products

exiv2exiv2
LibraryLibrary
OSS Libraries / generic-library
fedorafedoraproject
On-premOS
Operating Systems / linux-distro
exiv2Exiv2
LibraryLibrary
OSS Libraries / generic-library
Red Hat Enterprise LinuxRed Hat Inc.
On-premOS
Operating Systems / linux-distro
Debian GNU/LinuxСообщество свободного программного обеспечения
On-premOS
Operating Systems / linux-distro
exiv2oss-projectOSS Librariesaka exiv2
fedoraprojectoss-projectUSOperating Systemsaka fedora project
red hat inc.commercialUSOperating Systemsaka red hat
сообщество свободного программного обеспеченияoss-projectOperating Systemsaka сообщество свободного программного обеспечения, fsf
and 5 more affected products View all →

Attack Graph

Products CVE Techniques Tactics

Click technique nodes to view MITRE ATT&CK details. Scroll to zoom, drag to pan.

Exploitability

Official Patch Available

MITRE ATT&CK

2 techniques
Impact
Initial Access
View detailed technique mapping

References

https://github.com/Exiv2/exiv2/pull/1758
github.com
https://github.com/Exiv2/exiv2/security/advisories/GHSA-h9x9-4f77-336w
github.com
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/FMDT4PJB7P43WSOM3TRQIY3J33BAFVVE/
lists.fedoraproject.org
and 10 more references View all →

Timeline

Published
Aug 9, 2021
Last Updated
Nov 21, 2024

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