Ubuntu Security Notice (C) 2007-2017 Canonical, Inc. / NASL script (C) 2007-2017 Tenable Network Security, Inc.
The remote Ubuntu host is missing one or more security-related
A buffer overflow was discovered in libgd2's font renderer. By
tricking an application using libgd2 into rendering a specially
crafted string with a JIS encoded font, a remote attacker could read
heap memory or crash the application, leading to a denial of service.
Xavier Roche discovered that libgd2 did not correctly validate PNG
callback results. If an application were tricked into processing a
specially crafted PNG image, it would monopolize CPU resources. Since
libgd2 is often used in PHP and Perl web applications, this could lead
to a remote denial of service. (CVE-2007-2756).
Note that Tenable Network Security has extracted the preceding
description block directly from the Ubuntu security advisory. Tenable
has attempted to automatically clean and format it as much as possible
without introducing additional issues.
Update the affected packages.
Risk factor :
High / CVSS Base Score : 7.5
CVSS Temporal Score : 7.5
Public Exploit Available : false