CVE-2020-27762: Integer Overflow
First published: Wed Nov 04 2020(Updated: )
A flaw was found in ImageMagick in coders/hdr.c. An attacker who submits a crafted file that is processed by ImageMagick could trigger undefined behavior in the form of values outside the range of type `unsigned char`. This would most likely lead to an impact to application availability, but could potentially cause other problems related to undefined behavior. This flaw affects ImageMagick versions prior to ImageMagick 7.0.8-68.
Credit: secalert@redhat.com secalert@redhat.com
| Affected Software | Affected Version | How to fix |
|---|---|---|
| ImageMagick ImageMagick | <6.9.10-68 | |
| ImageMagick ImageMagick | >=7.0.0-0<7.0.8-68 | |
| Debian Debian Linux | =9.0 | |
| redhat/ImageMagick 7.0.8 | <68 | 68 |
| debian/imagemagick | 8:6.9.11.60+dfsg-1.3+deb11u4 8:6.9.11.60+dfsg-1.3+deb11u3 8:6.9.11.60+dfsg-1.6+deb12u2 8:6.9.11.60+dfsg-1.6+deb12u1 8:7.1.1.39+dfsg1-3 |
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Reference Links
- https://bugzilla.redhat.com/show_bug.cgi?id=1894680
- https://lists.debian.org/debian-lts-announce/2021/03/msg00030.html
- https://lists.debian.org/debian-lts-announce/2023/03/msg00008.html
- https://launchpad.net/bugs/cve/CVE-2020-27762
- https://github.com/ImageMagick/ImageMagick/issues/1713
- https://github.com/ImageMagick/ImageMagick/commit/7db3fa20893d557259da6e99e111954de83d2495
- https://access.redhat.com/support/policy/updates/errata
- https://bugzilla.redhat.com/show_bug.cgi/show_bug.cgi?id=1901269
- https://bugzilla.redhat.com/show_bug.cgi/show_bug.cgi?id=1901270
- https://access.redhat.com/security/cve/cve-2020-27762
- https://github.com/ImageMagick/ImageMagick6/commit/3e10f7c3c9f0394dfd6ebd372bc34a172dabc8ff
- https://security-tracker.debian.org/tracker/CVE-2020-27762
- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-27762
- https://nvd.nist.gov/vuln/detail/CVE-2020-27762
- https://ubuntu.com/security/CVE-2020-27762
Frequently Asked Questions
What is CVE-2020-27762?
CVE-2020-27762 is a vulnerability found in ImageMagick in coders/hdr.c that allows an attacker to trigger undefined behavior, potentially impacting application availability.
What is the severity of CVE-2020-27762?
The severity of CVE-2020-27762 is medium with a CVSS score of 5.5.
Which software packages are affected by CVE-2020-27762?
ImageMagick versions 8:6.9.7.4+dfsg-16ubuntu6.11, 8:6.9.11.24+dfsg-1, 8:6.8.9.9-7ubuntu5.16+, 8:6.9.10.23+dfsg-2.1ubuntu11.4, 8:6.9.10.23+dfsg-2.1ubuntu13.3, and 8:6.9.10.23+dfsg-2.1+deb10u5, 8:6.9.11.60+dfsg-1.3+deb11u1, 8:6.9.11.60+dfsg-1.6, and 6.9.10-68 (CPE version), and ImageMagick 7.0.0-0 to 7.0.8-68 (CPE version) are affected.
How do I fix CVE-2020-27762?
To fix CVE-2020-27762, update ImageMagick to version 8:6.9.7.4+dfsg-16ubuntu6.11, 8:6.9.11.24+dfsg-1, 8:6.8.9.9-7ubuntu5.16+, 8:6.9.10.23+dfsg-2.1ubuntu11.4, 8:6.9.10.23+dfsg-2.1ubuntu13.3, 8:6.9.10.23+dfsg-2.1+deb10u5, 8:6.9.11.60+dfsg-1.3+deb11u1, 8:6.9.11.60+dfsg-1.6, or 7.0.8-68 (CPE version) depending on the version you are using.
Where can I find more information about CVE-2020-27762?
You can find more information about CVE-2020-27762 at the following references: [CVE-2020-27762](https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-27762), [USN-4988-1](https://ubuntu.com/security/notices/USN-4988-1), [USN-5335-1](https://ubuntu.com/security/notices/USN-5335-1).
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