Information Exposure Affecting libgd2 package, versions <2.1.0-5+deb8u10
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Test your applications- Snyk ID SNYK-DEBIAN8-LIBGD2-383049
- published 2 Aug 2017
- disclosed 2 Aug 2017
Introduced: 2 Aug 2017
CVE-2017-7890 Open this link in a new tabHow to fix?
Upgrade Debian:8
libgd2
to version 2.1.0-5+deb8u10 or higher.
NVD Description
Note: Versions mentioned in the description apply only to the upstream libgd2
package and not the libgd2
package as distributed by Debian
.
See How to fix?
for Debian:8
relevant fixed versions and status.
The GIF decoding function gdImageCreateFromGifCtx in gd_gif_in.c in the GD Graphics Library (aka libgd), as used in PHP before 5.6.31 and 7.x before 7.1.7, does not zero colorMap arrays before use. A specially crafted GIF image could use the uninitialized tables to read ~700 bytes from the top of the stack, potentially disclosing sensitive information.
References
- https://security-tracker.debian.org/tracker/CVE-2017-7890
- http://php.net/ChangeLog-5.php
- http://php.net/ChangeLog-7.php
- https://bugs.php.net/bug.php?id=74435
- https://bugs.php.net/patch-display.php?bug=74435&patch=fix-74435-php-7.0&revision=1497970038
- https://www.tenable.com/security/tns-2017-12
- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2017-7890
- http://www.debian.org/security/2017/dsa-3938
- https://security.netapp.com/advisory/ntap-20180112-0001/
- https://access.redhat.com/errata/RHSA-2018:0406
- https://access.redhat.com/errata/RHSA-2018:1296
- http://www.securityfocus.com/bid/99492
- http://people.ubuntu.com/~ubuntu-security/cve/CVE-2017-7890