Fedora 15 : libpng10-1.0.55-1.fc15 (2011-8844)

This script is Copyright (C) 2011-2016 Tenable Network Security, Inc.


Synopsis :

The remote Fedora host is missing a security update.

Description :

This update fixes a 1-byte uninitialized memory reference in
png_format_buffer(). It allows attackers to cause a denial of service
(crash) via a malformed PNG image file that triggers an error that
causes an out-of-bounds read when creating the error message. This is
CVE-2011-2501.

Also fixed in this release are some other minor security problems and
there's additionally a bugfix backported from 1.5.3: when expanding a
paletted image, always expand to RGBA if transparency is present.

Note that Tenable Network Security has extracted the preceding
description block directly from the Fedora security advisory. Tenable
has attempted to automatically clean and format it as much as possible
without introducing additional issues.

See also :

https://bugzilla.redhat.com/show_bug.cgi?id=717084
https://bugzilla.redhat.com/show_bug.cgi?id=720607
https://bugzilla.redhat.com/show_bug.cgi?id=720608
https://bugzilla.redhat.com/show_bug.cgi?id=720612
http://www.nessus.org/u?34f18a13

Solution :

Update the affected libpng10 package.

Risk factor :

Medium / CVSS Base Score : 6.8
(CVSS2#AV:N/AC:M/Au:N/C:P/I:P/A:P)
CVSS Temporal Score : 5.9
(CVSS2#E:ND/RL:OF/RC:C)
Public Exploit Available : false

Family: Fedora Local Security Checks

Nessus Plugin ID: 55654 ()

Bugtraq ID: 48474
48618
48660

CVE ID: CVE-2004-0421
CVE-2011-2501
CVE-2011-2690
CVE-2011-2691
CVE-2011-2692

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