113 lines
4.6 KiB
XML
113 lines
4.6 KiB
XML
<?xml version="1.0" encoding="UTF-8"?>
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<!DOCTYPE glsa SYSTEM "http://www.gentoo.org/dtd/glsa.dtd">
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<glsa id="201206-15">
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<title>libpng: Multiple vulnerabilities</title>
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<synopsis>Multiple vulnerabilities in libpng might allow remote attackers to
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execute arbitrary code or cause a Denial of Service condition.
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</synopsis>
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<product type="ebuild">libpng</product>
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<announced>June 22, 2012</announced>
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<revised>June 06, 2015: 4</revised>
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<bug>373967</bug>
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<bug>386185</bug>
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<bug>401987</bug>
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<bug>404197</bug>
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<bug>410153</bug>
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<access>remote</access>
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<affected>
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<package name="media-libs/libpng" auto="yes" arch="*">
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<unaffected range="ge">1.5.10</unaffected>
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<unaffected range="rge">1.2.49</unaffected>
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<unaffected range="rge">1.2.50</unaffected>
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<unaffected range="rge">1.2.51</unaffected>
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<unaffected range="rge">1.2.52</unaffected>
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<unaffected range="rge">1.2.53</unaffected>
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<unaffected range="rge">1.2.54</unaffected>
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<unaffected range="rge">1.2.55</unaffected>
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<vulnerable range="lt">1.5.10</vulnerable>
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</package>
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</affected>
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<background>
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<p>libpng is a standard library used to process PNG (Portable Network
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Graphics) images. It is used by several programs, including web browsers
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and potentially server processes.
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</p>
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</background>
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<description>
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<p>Multiple vulnerabilities have been discovered in libpng:</p>
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<ul>
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<li>The “embedded_profile_len()” function in pngwutil.c does not
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check for negative values, resulting in a memory leak (CVE-2009-5063).
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</li>
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<li>The “png_format_buffer()” function in pngerror.c contains an
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off-by-one error (CVE-2011-2501).
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</li>
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<li>The “png_rgb_to_gray()” function in pngrtran.c contains an
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integer overflow error (CVE-2011-2690).
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</li>
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<li>The “png_err()” function in pngerror.c contains a NULL pointer
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dereference error (CVE-2011-2691).
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</li>
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<li>The “png_handle_sCAL()” function in pngrutil.c improperly handles
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malformed sCAL chunks(CVE-2011-2692).
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</li>
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<li>The “png_decompress_chunk()” function in pngrutil.c contains an
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integer overflow error (CVE-2011-3026).
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</li>
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<li>The “png_inflate()” function in pngrutil.c contains and out of
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bounds error (CVE-2011-3045).
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</li>
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<li>The “png_set_text_2()” function in pngset.c contains an error
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which could result in memory corruption (CVE-2011-3048).
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</li>
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<li>The “png_formatted_warning()” function in pngerror.c contains an
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off-by-one error (CVE-2011-3464).
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</li>
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</ul>
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</description>
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<impact type="normal">
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<p>An attacker could exploit these vulnerabilities to execute arbitrary
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code with the permissions of the user running the vulnerable program,
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which could be the root user, or to cause programs linked against the
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library to crash.
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</p>
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</impact>
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<workaround>
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<p>There is no known workaround at this time.</p>
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</workaround>
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<resolution>
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<p>All libpng 1.5 users should upgrade to the latest version:</p>
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<code>
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# emerge --sync
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# emerge --ask --oneshot --verbose ">=media-libs/libpng-1.5.10"
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</code>
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<p>All libpng 1.2 users should upgrade to the latest version:</p>
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<code>
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# emerge --sync
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# emerge --ask --oneshot --verbose ">=media-libs/libpng-1.2.49"
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</code>
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<p>Packages which depend on this library may need to be recompiled. Tools
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such as revdep-rebuild may assist in identifying some of these packages.
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</p>
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</resolution>
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<references>
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<uri link="http://nvd.nist.gov/nvd.cfm?cvename=CVE-2009-5063">CVE-2009-5063</uri>
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<uri link="http://nvd.nist.gov/nvd.cfm?cvename=CVE-2011-2501">CVE-2011-2501</uri>
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<uri link="http://nvd.nist.gov/nvd.cfm?cvename=CVE-2011-2690">CVE-2011-2690</uri>
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<uri link="http://nvd.nist.gov/nvd.cfm?cvename=CVE-2011-2691">CVE-2011-2691</uri>
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<uri link="http://nvd.nist.gov/nvd.cfm?cvename=CVE-2011-2692">CVE-2011-2692</uri>
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<uri link="http://nvd.nist.gov/nvd.cfm?cvename=CVE-2011-3026">CVE-2011-3026</uri>
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<uri link="http://nvd.nist.gov/nvd.cfm?cvename=CVE-2011-3045">CVE-2011-3045</uri>
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<uri link="http://nvd.nist.gov/nvd.cfm?cvename=CVE-2011-3048">CVE-2011-3048</uri>
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<uri link="http://nvd.nist.gov/nvd.cfm?cvename=CVE-2011-3464">CVE-2011-3464</uri>
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</references>
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<metadata tag="requester" timestamp="Fri, 07 Oct 2011 23:37:07 +0000">
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underling
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</metadata>
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<metadata tag="submitter" timestamp="Sat, 06 Jun 2015 23:37:53 +0000">ackle</metadata>
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</glsa>
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