CVE-2018-13785: Integer Overflow
First published: Mon Jul 09 2018(Updated: )
In libpng 1.6.34, a wrong calculation of row_factor in the png_check_chunk_length function (pngrutil.c) may trigger an integer overflow and resultant divide-by-zero while processing a crafted PNG file, leading to a denial of service.
Credit: cve@mitre.org cve@mitre.org
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Libpng Libpng | =1.6.34 | |
| Canonical Ubuntu Linux | =14.04 | |
| Canonical Ubuntu Linux | =16.04 | |
| Canonical Ubuntu Linux | =17.10 | |
| Canonical Ubuntu Linux | =18.04 | |
| Oracle JDK | =1.6.0-update201 | |
| Oracle JDK | =1.7.0-update191 | |
| Oracle JDK | =1.8.0-update181 | |
| Oracle JDK | =11.0.0 | |
| Oracle JRE | =1.6.0-update201 | |
| Oracle JRE | =1.7.0-update191 | |
| Oracle JRE | =1.8.0-update181 | |
| Oracle JRE | =11.0.0 | |
| Redhat Enterprise Linux Desktop | =6.0 | |
| Redhat Enterprise Linux Desktop | =7.0 | |
| Redhat Enterprise Linux Server | =6.0 | |
| Redhat Enterprise Linux Server | =7.0 | |
| Redhat Enterprise Linux Workstation | =6.0 | |
| Redhat Enterprise Linux Workstation | =7.0 | |
| debian/libpng1.6 | 1.6.37-3 1.6.39-2 1.6.43-5 1.6.44-1 |
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Reference Links
- http://www.oracle.com/technetwork/security-advisory/cpuoct2018-4428296.html
- http://www.securityfocus.com/bid/105599
- http://www.securitytracker.com/id/1041889
- https://access.redhat.com/errata/RHSA-2018:3000
- https://access.redhat.com/errata/RHSA-2018:3001
- https://access.redhat.com/errata/RHSA-2018:3002
- https://access.redhat.com/errata/RHSA-2018:3003
- https://access.redhat.com/errata/RHSA-2018:3007
- https://access.redhat.com/errata/RHSA-2018:3008
- https://access.redhat.com/errata/RHSA-2018:3533
- https://access.redhat.com/errata/RHSA-2018:3534
- https://access.redhat.com/errata/RHSA-2018:3671
- https://access.redhat.com/errata/RHSA-2018:3672
- https://access.redhat.com/errata/RHSA-2018:3779
- https://access.redhat.com/errata/RHSA-2018:3852
- https://github.com/glennrp/libpng/commit/8a05766cb74af05c04c53e6c9d60c13fc4d59bf2
- https://security.gentoo.org/glsa/201908-10
- https://security.netapp.com/advisory/ntap-20181018-0001/
- https://sourceforge.net/p/libpng/bugs/278/
- https://usn.ubuntu.com/3712-1/
- https://launchpad.net/bugs/cve/CVE-2018-13785
- https://bugzilla.redhat.com/show_bug.cgi/show_bug.cgi?id=1599944
- https://bugzilla.redhat.com/show_bug.cgi/show_bug.cgi?id=1599950
- https://bugzilla.redhat.com/show_bug.cgi/show_bug.cgi?id=1599945
- https://bugzilla.redhat.com/show_bug.cgi/show_bug.cgi?id=1599946
- https://bugzilla.redhat.com/show_bug.cgi/show_bug.cgi?id=1599947
- https://bugzilla.redhat.com/show_bug.cgi/show_bug.cgi?id=1599949
- https://bugzilla.redhat.com/show_bug.cgi/show_bug.cgi?id=1599948
- https://github.com/glennrp/libpng/commit/2dca15686fadb1b8951cb29b02bad4cae73448da
- https://bugzilla.redhat.com/show_bug.cgi?id=1599943
- https://security-tracker.debian.org/tracker/CVE-2018-13785
- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-13785
- https://nvd.nist.gov/vuln/detail/CVE-2018-13785
- https://ubuntu.com/security/CVE-2018-13785
Frequently Asked Questions
What is CVE-2018-13785?
CVE-2018-13785 is a vulnerability in libpng 1.6.34 that may trigger an integer overflow and resultant divide-by-zero while processing a crafted PNG file, leading to a denial of service.
What is the severity of CVE-2018-13785?
The severity of CVE-2018-13785 is medium with a CVSS score of 6.5.
How does CVE-2018-13785 affect libpng?
CVE-2018-13785 affects libpng version 1.6.34.
How can I fix CVE-2018-13785?
To fix CVE-2018-13785, update libpng to version 1.6.36-6, 1.6.37-3, 1.6.39-2, or 1.6.40-2.
Where can I find more information about CVE-2018-13785?
You can find more information about CVE-2018-13785 at the following references: [Reference 1](https://sourceforge.net/p/libpng/bugs/278/), [Reference 2](https://github.com/glennrp/libpng/commit/8a05766cb74af05c04c53e6c9d60c13fc4d59bf2), [Reference 3](https://bugzilla.redhat.com/show_bug.cgi/show_bug.cgi?id=1599944).
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