CVE-2020-27771: Integer Overflow
First published: Mon Nov 16 2020(Updated: )
In ImageMagick, there is an outside the range of representable values of type 'unsigned char' at coders/pdf.c. Reference: <a href="https://github.com/ImageMagick/ImageMagick/issues/1753">https://github.com/ImageMagick/ImageMagick/issues/1753</a> Upstream patch: <a href="https://github.com/ImageMagick/ImageMagick/commit/872ffe6d0131beec8b47568a4874ffaca91a872e">https://github.com/ImageMagick/ImageMagick/commit/872ffe6d0131beec8b47568a4874ffaca91a872e</a> <a href="https://github.com/ImageMagick/ImageMagick/commit/9dd1c7e1f8f6c137bfd3293be2554f59456c7b62">https://github.com/ImageMagick/ImageMagick/commit/9dd1c7e1f8f6c137bfd3293be2554f59456c7b62</a>
Credit: secalert@redhat.com secalert@redhat.com
| Affected Software | Affected Version | How to fix |
|---|---|---|
| ImageMagick ImageMagick | <6.9.10-69 | |
| ImageMagick ImageMagick | >=7.0.0-0<7.0.9 | |
| Redhat Enterprise Linux | =5.0 | |
| Redhat Enterprise Linux | =6.0 | |
| Redhat Enterprise Linux | =7.0 | |
| Debian Debian Linux | =9.0 | |
| redhat/ImageMagick 7.0.9 | <0 | 0 |
| 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 8:6.9.13.12+dfsg1-1 8:7.1.1.39+dfsg1-2 |
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Reference Links
- https://bugzilla.redhat.com/show_bug.cgi?id=1898290
- 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-2020-27771
- https://github.com/ImageMagick/ImageMagick/issues/1753
- https://github.com/ImageMagick/ImageMagick/commit/872ffe6d0131beec8b47568a4874ffaca91a872e
- https://github.com/ImageMagick/ImageMagick/commit/9dd1c7e1f8f6c137bfd3293be2554f59456c7b62
- https://bugzilla.redhat.com/show_bug.cgi/show_bug.cgi?id=1901287
- https://bugzilla.redhat.com/show_bug.cgi/show_bug.cgi?id=1901288
- https://access.redhat.com/security/cve/cve-2020-27771
- https://access.redhat.com/support/policy/updates/errata
- https://github.com/ImageMagick/ImageMagick6/commit/a07ecde4c1c3a3efaa628434adc903295f6bb2b3
- https://security-tracker.debian.org/tracker/CVE-2020-27771
- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-27771
- https://nvd.nist.gov/vuln/detail/CVE-2020-27771
- https://ubuntu.com/security/CVE-2020-27771
Frequently Asked Questions
What is CVE-2020-27771?
CVE-2020-27771 is a vulnerability in the Imagemagick package that allows for values outside the range of representable unsigned char type.
What is the severity of CVE-2020-27771?
The severity of CVE-2020-27771 is medium with a severity value of 3.3.
How does CVE-2020-27771 affect Imagemagick?
CVE-2020-27771 affects Imagemagick versions 6.9.10.23+dfsg-2.1ubuntu11.4, 6.9.10.23+dfsg-2.1ubuntu13.3, 6.9.11.24+dfsg-1, 6.9.7.4+dfsg-16ubuntu6.11, and 6.9.10.23+dfsg-2.1+deb10u5.
What is the fix for CVE-2020-27771?
The fix for CVE-2020-27771 is to update to Imagemagick version 6.9.10.23+dfsg-2.1ubuntu11.4, 6.9.10.23+dfsg-2.1ubuntu13.3, 6.9.11.24+dfsg-1, 6.9.7.4+dfsg-16ubuntu6.11, or 6.9.10.23+dfsg-2.1+deb10u5.
Where can I find more information about CVE-2020-27771?
More information about CVE-2020-27771 can be found on MITRE's CVE website, the Ubuntu Security Notices, and the NIST NVD website.
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