RHSA-2008:0146 - Security Advisory

Topic

Updated gd packages that fix multiple security issues are now available for
Red Hat Enterprise Linux 4 and 5.

This update has been rated as having moderate security impact by the Red
Hat Security Response Team.

Description

The gd package contains a graphics library used for the dynamic creation of
images such as PNG and JPEG.

Multiple issues were discovered in the gd GIF image-handling code. A
carefully-crafted GIF file could cause a crash or possibly execute code
with the privileges of the application using the gd library.
(CVE-2006-4484, CVE-2007-3475, CVE-2007-3476)

An integer overflow was discovered in the gdImageCreateTrueColor()
function, leading to incorrect memory allocations. A carefully crafted
image could cause a crash or possibly execute code with the privileges of
the application using the gd library. (CVE-2007-3472)

A buffer over-read flaw was discovered. This could cause a crash in an
application using the gd library to render certain strings using a
JIS-encoded font. (CVE-2007-0455)

A flaw was discovered in the gd PNG image handling code. A truncated PNG
image could cause an infinite loop in an application using the gd library.
(CVE-2007-2756)

A flaw was discovered in the gd X BitMap (XBM) image-handling code. A
malformed or truncated XBM image could cause a crash in an application
using the gd library. (CVE-2007-3473)

Users of gd should upgrade to these updated packages, which contain
backported patches which resolve these issues.

Solution

Before applying this update, make sure that all previously-released
errata relevant to your system have been applied.

This update is available via Red Hat Network. Details on how to use
the Red Hat Network to apply this update are available at
http://kbase.redhat.com/faq/FAQ_58_10188

Affected Products

• Red Hat Enterprise Linux Server 5 x86_64
• Red Hat Enterprise Linux Server 5 ia64
• Red Hat Enterprise Linux Server 5 i386
• Red Hat Enterprise Linux Server 4 x86_64
• Red Hat Enterprise Linux Server 4 ia64
• Red Hat Enterprise Linux Server 4 i386
• Red Hat Enterprise Linux for x86_64 - Extended Update Support 5.1 x86_64
• Red Hat Enterprise Linux for x86_64 - Extended Update Support 5.1 ia64
• Red Hat Enterprise Linux for x86_64 - Extended Update Support 5.1 i386
• Red Hat Enterprise Linux for x86_64 - Extended Update Support 4.6 x86_64
• Red Hat Enterprise Linux for x86_64 - Extended Update Support 4.6 ia64
• Red Hat Enterprise Linux for x86_64 - Extended Update Support 4.6 i386
• Red Hat Enterprise Linux Workstation 5 x86_64
• Red Hat Enterprise Linux Workstation 5 i386
• Red Hat Enterprise Linux Workstation 4 x86_64
• Red Hat Enterprise Linux Workstation 4 ia64
• Red Hat Enterprise Linux Workstation 4 i386
• Red Hat Enterprise Linux Desktop 5 x86_64
• Red Hat Enterprise Linux Desktop 5 i386
• Red Hat Enterprise Linux Desktop 4 x86_64
• Red Hat Enterprise Linux Desktop 4 i386
• Red Hat Enterprise Linux for IBM z Systems 5 s390x
• Red Hat Enterprise Linux for IBM z Systems 4 s390x
• Red Hat Enterprise Linux for IBM z Systems 4 s390
• Red Hat Enterprise Linux for IBM z Systems - Extended Update Support 5.1 s390x
• Red Hat Enterprise Linux for IBM z Systems - Extended Update Support 4.6 s390x
• Red Hat Enterprise Linux for IBM z Systems - Extended Update Support 4.6 s390
• Red Hat Enterprise Linux for Power, big endian 5 ppc
• Red Hat Enterprise Linux for Power, big endian 4 ppc
• Red Hat Enterprise Linux for Power, big endian - Extended Update Support 5.1 ppc
• Red Hat Enterprise Linux for Power, big endian - Extended Update Support 4.6 ppc
• Red Hat Enterprise Linux Server from RHUI 5 x86_64
• Red Hat Enterprise Linux Server from RHUI 5 i386

Fixes

• BZ - 224607 - CVE-2007-0455 gd buffer overrun
• BZ - 242033 - CVE-2007-2756 gd / php-gd ImageCreateFromPng infinite loop caused by truncated PNG
• BZ - 276751 - CVE-2007-3472 libgd Integer overflow in TrueColor code
• BZ - 276791 - CVE-2007-3473 libgd NULL pointer dereference when reading a corrupt X bitmap
• BZ - 277181 - CVE-2007-3475 libgd Denial of service by GIF images without a global color map
• BZ - 277201 - CVE-2007-3476 libgd Denial of service by corrupted GIF images
• BZ - 431568 - CVE-2006-4484 gd: GIF handling buffer overflow

CVEs

• CVE-2006-4484
• CVE-2007-0455
• CVE-2007-2756
• CVE-2007-3472
• CVE-2007-3473
• CVE-2007-3475
• CVE-2007-3476

References

• http://www.redhat.com/security/updates/classification/#moderate