Bug 2248428 (CVE-2023-44398)

Summary:	CVE-2023-44398 exiv2: Out of bounds write in function BmffImage::brotliUncompress
Product:	[Other] Security Response	Reporter:	Pedro Sampaio <psampaio>
Component:	vulnerability	Assignee:	Product Security <prodsec-ir-bot>
Status:	NEW ---	QA Contact:
Severity:	medium	Docs Contact:
Priority:	medium
Version:	unspecified	Keywords:	Security
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Hardware:	All
OS:	Linux
Whiteboard:
Fixed In Version:	exiv2 0.28.1	Doc Type:	---
Doc Text:	An out-of-bounds write vulnerability has been identified in the Exiv2 library within the BmffImage::brotliUncompress() function. This issue arises when Exiv2 is employed to extract metadata from a manipulated image file. An attacker could potentially exploit the vulnerability to gain code execution, if they can trick the victim into running Exiv2 on a crafted image file.	Story Points:	---
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oVirt Team:	---	RHEL 7.3 requirements from Atomic Host:
Cloudforms Team:	---	Target Upstream Version:
Embargoed:
Bug Depends On:
Bug Blocks:	2248429

Description Pedro Sampaio 2023-11-07 01:54:45 UTC

Exiv2 is a C++ library and a command-line utility to read, write, delete and modify Exif, IPTC, XMP and ICC image metadata. An out-of-bounds write was found in Exiv2 version v0.28.0. The vulnerable function, `BmffImage::brotliUncompress`, is new in v0.28.0, so earlier versions of Exiv2 are _not_ affected. The out-of-bounds write is triggered when Exiv2 is used to read the metadata of a crafted image file. An attacker could potentially exploit the vulnerability to gain code execution, if they can trick the victim into running Exiv2 on a crafted image file. This bug is fixed in version v0.28.1. Users are advised to upgrade. There are no known workarounds for this vulnerability.

References:

https://github.com/Exiv2/exiv2/security/advisories/GHSA-hrw9-ggg3-3r4r
https://github.com/Exiv2/exiv2/commit/e884a0955359107f4031c74a07406df7e99929a5