CVE-2021-32493: Buffer Overflow
First published: Fri Mar 26 2021(Updated: )
A flaw was found in djvulibre-3.5.28 and earlier. A heap buffer overflow in function DJVU::GBitmap::decode() via crafted djvu file may lead to application crash and other consequences.
Credit: patrick@puiterwijk.org
| Affected Software | Affected Version | How to fix |
|---|---|---|
| debian/djvulibre | 3.5.27.1-10+deb10u1 3.5.28-2 | |
| ubuntu/libdjvulibre-text | <=3.5.28 | |
| Debian | =10.0 | |
| Debian | =11.0 |
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Reference Links
- https://bugzilla.redhat.com/show_bug.cgi?id=1943424
- https://sourceforge.net/p/djvu/djvulibre-git/ci/cd8b5c97b27a5c1dc83046498b6ca49ad20aa9b6/
- https://security-tracker.debian.org/tracker/CVE-2021-32493
- https://bugzilla.redhat.com/show_bug.cgi?id=1943690
- https://www.debian.org/security/2021/dsa-5032
- https://bugzilla.redhat.com/show_bug.cgi/show_bug.cgi?id=1943424
- https://bugzilla.redhat.com/show_bug.cgi/show_bug.cgi?id=1958181
- https://bugzilla.redhat.com/show_bug.cgi/show_bug.cgi?id=1958180
Frequently Asked Questions
What is CVE-2021-32493?
CVE-2021-32493 is a vulnerability in djvulibre-3.5.28 and earlier versions that allows a crafted djvu file to cause a heap buffer overflow, potentially leading to application crashes and other consequences.
How severe is CVE-2021-32493?
CVE-2021-32493 has a severity rating of 7.8, which is considered high.
Which software is affected by CVE-2021-32493?
The affected software includes djvulibre-3.5.28 and earlier versions.
How can I fix CVE-2021-32493?
To fix CVE-2021-32493, it is recommended to update your djvulibre package to version 3.5.28-2 or apply the provided patches for the affected versions.
Where can I find more information about CVE-2021-32493?
You can find more information about CVE-2021-32493 on Red Hat Bugzilla, SourceForge, and the Debian Security Tracker.
- collector/security-tracker-debian
- agent/type
- collector/mitre-cve
- source/MITRE
- collector/redhat-bugzilla
- source/Red Hat
- alias/CVE-2021-32493
- agent/weakness
- agent/last-modified-date
- agent/author
- agent/references
- agent/severity
- agent/event
- agent/first-publish-date
- agent/description
- agent/trending
- agent/source
- agent/tags
- agent/softwarecombine
- collector/nvd-index
- agent/software-canonical-lookup-request
- package-manager/debian
- vendor/djvulibre project
- canonical/ubuntu/libdjvulibre-text
- version/ubuntu/libdjvulibre-text/3.5.28
- vendor/debian
- canonical/debian
- version/debian/10.0
- version/debian/11.0