Bug 1958807 (CVE-2021-27815) - CVE-2021-27815 libexif: NULL Pointer Deference may lead to DoS by uploading a malicious JPEG file
Summary: CVE-2021-27815 libexif: NULL Pointer Deference may lead to DoS by uploading a...
Keywords:
Status: CLOSED NOTABUG
Alias: CVE-2021-27815
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
low
low
Target Milestone: ---
Assignee: Red Hat Product Security
QA Contact:
URL:
Whiteboard:
Depends On: 1958808 1958809
Blocks: 1958810
TreeView+ depends on / blocked
 
Reported: 2021-05-10 08:06 UTC by Marian Rehak
Modified: 2021-05-17 09:37 UTC (History)
12 users (show)

Fixed In Version:
Clone Of:
Environment:
Last Closed: 2021-05-17 09:35:13 UTC
Embargoed:

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Description Marian Rehak 2021-05-10 08:06:29 UTC 
NULL Pointer Deference in the exif command line tool, when printing out XML formatted EXIF data, in exif v0.6.22 and earlier allows attackers to cause a Denial of Service (DoS) by uploading a malicious JPEG file.

Upstream Reference:

https://github.com/libexif/exif/issues/4
Comment 1 Marian Rehak 2021-05-10 08:07:41 UTC 
Created exif tracking bugs for this issue:

Affects: fedora-all [bug 1958808]


Created libexif tracking bugs for this issue:

Affects: fedora-all [bug 1958809]
Comment 2 Stefan Cornelius 2021-05-17 09:37:31 UTC 
Patch:
https://github.com/libexif/exif/commit/f6334d9d32437ef13dc902f0a88a2be0063d9d1c
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