CVE-2020-19143: Buffer Overflow
First published: Thu Sep 09 2021(Updated: )
Buffer Overflow in LibTiff v4.0.10 allows attackers to cause a denial of service via the "TIFFVGetField" funtion in the component 'libtiff/tif_dir.c'.
Credit: cve@mitre.org
| Affected Software | Affected Version | How to fix |
|---|---|---|
| debian/tiff | 4.1.0+git191117-2~deb10u4 4.1.0+git191117-2~deb10u8 4.2.0-1+deb11u4 4.5.0-6 4.5.1+git230720-1 | |
| Libtiff | =4.0.10 | |
| Debian Linux | =11.0 |
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Reference Links
- http://bugzilla.maptools.org/show_bug.cgi?id=2851
- https://gitlab.com/libtiff/libtiff/-/issues/158
- https://gitlab.com/libtiff/libtiff/-/commit/9eacd59fecc4ef593ac17689bc530ab451c8ec14
- https://gitlab.com/libtiff/libtiff/-/commit/54ce8c522078cd0f39861df71db848648ec28ade
- https://security-tracker.debian.org/tracker/CVE-2020-19143
- https://gitlab.com/libtiff/libtiff/-/merge_requests/119
- https://security.netapp.com/advisory/ntap-20211004-0005/
- https://www.debian.org/security/2021/dsa-4997
Frequently Asked Questions
What is the severity of CVE-2020-19143?
CVE-2020-19143 is classified with a medium severity due to its potential to cause a denial of service.
How do I fix CVE-2020-19143?
To fix CVE-2020-19143, upgrade to a patched version of LibTiff, such as 4.1.0+git191117-2~deb10u4 or later.
Which versions of LibTiff are affected by CVE-2020-19143?
LibTiff version 4.0.10 is directly affected by CVE-2020-19143.
Can CVE-2020-19143 lead to data loss?
CVE-2020-19143 primarily leads to a denial of service rather than directly causing data loss.
Is CVE-2020-19143 easy to exploit?
Exploitation of CVE-2020-19143 may require specific conditions in the input TIFF files, making it a target for deliberate attacks.
- collector/security-tracker-debian
- agent/type
- agent/remedy
- collector/mitre-cve
- source/MITRE
- agent/references
- agent/author
- agent/severity
- agent/weakness
- agent/last-modified-date
- agent/description
- agent/event
- agent/first-publish-date
- agent/source
- agent/tags
- agent/softwarecombine
- collector/nvd-index
- agent/software-canonical-lookup-request
- package-manager/debian
- vendor/simplesystems
- canonical/libtiff
- version/libtiff/4.0.10
- vendor/debian
- canonical/debian linux
- version/debian linux/11.0