CVE-2020-25693: Integer Overflow
First published: Fri Oct 30 2020(Updated: )
A flaw was found in CImg in versions prior to 2.9.3. Integer overflows leading to heap buffer overflows in load_pnm() can be triggered by a specially crafted input file processed by CImg, which can lead to an impact to application availability or data integrity.
Credit: secalert@redhat.com
| Affected Software | Affected Version | How to fix |
|---|---|---|
| <2.9.3 | ||
| =32 | ||
| =33 | ||
| =34 | ||
| redhat/CImg | <2.9.3 | 2.9.3 |
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Reference Links
- https://bugzilla.redhat.com/show_bug.cgi?id=1893377
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/ERBZALTF7LXN2LZLPGAUSVMV53GHHTUC/
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/MJ5Q7NNUPXATTBUKHFKIYYAV5GJDYCZL/
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/QZ3NPLYXZWEL7HETIFZVCXEZZ2WYYRWA/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/MJ5Q7NNUPXATTBUKHFKIYYAV5GJDYCZL/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/QZ3NPLYXZWEL7HETIFZVCXEZZ2WYYRWA/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/ERBZALTF7LXN2LZLPGAUSVMV53GHHTUC/
- https://github.com/dtschump/CImg/pull/295
- https://bugs.launchpad.net/ubuntu/+source/cimg/+bug/1900983
- https://bugzilla.redhat.com/show_bug.cgi/show_bug.cgi?id=1893378
- https://github.com/dtschump/CImg/pull/295/commits/4f184f89f9ab6785a6c90fd238dbaa6d901d3505
Frequently Asked Questions
What is CVE-2020-25693?
CVE-2020-25693 is a vulnerability in CImg prior to version 2.9.3 that allows integer overflows leading to heap buffer overflows.
What is the severity of CVE-2020-25693?
CVE-2020-25693 has a severity rating of 8.1 (high).
How does CVE-2020-25693 impact application availability or data integrity?
CVE-2020-25693 can impact application availability or data integrity due to heap buffer overflows caused by integer overflows in CImg.
Which software versions are affected by CVE-2020-25693?
Versions of CImg prior to 2.9.3 are affected by CVE-2020-25693.
How can I fix CVE-2020-25693?
To fix CVE-2020-25693, update CImg to version 2.9.3 or higher.
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