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86 lines
3.1 KiB
86 lines
3.1 KiB
<?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="201408-06">
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<title>libpng: Multiple vulnerabilities</title>
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<synopsis>Multiple vulnerabilities have been discovered in libpng which can
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allow a remote attacker to 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>2014-08-14</announced>
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<revised count="4">2015-06-06</revised>
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<bug>503014</bug>
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<bug>507378</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">1.6.10</unaffected>
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<unaffected range="lt">1.3</unaffected>
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<unaffected range="rge">1.5.18</unaffected>
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<unaffected range="rge">1.5.19</unaffected>
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<unaffected range="rge">1.5.20</unaffected>
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<unaffected range="rge">1.5.21</unaffected>
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<unaffected range="rge">1.5.22</unaffected>
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<unaffected range="rge">1.5.23</unaffected>
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<unaffected range="rge">1.5.24</unaffected>
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<unaffected range="rge">1.5.25</unaffected>
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<vulnerable range="lt">1.6.10</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>The png_push_read_chunk function in pngpread.c in the progressive
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decoder enters an infinite loop, when it encounters a zero-length IDAT
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chunk. In addition certain integer overflows have been detected and
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corrected.
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</p>
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<p>The 1.2 branch is not affected by these vulnerabilities.</p>
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</description>
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<impact type="normal">
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<p>A remote attacker could entice a user to open a specially crafted PNG
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file using an application linked against libpng, possibly resulting in
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Denial of Service.
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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 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-1.6.10"
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</code>
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<p>Users with current installs in the 1.5 branch should also upgrade this
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using:
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</p>
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<code>
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# emerge --sync
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# emerge --ask --oneshot --verbose ">=media-libs/libpng-1.5.18:1.5"
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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 these packages.
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</p>
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</resolution>
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<references>
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<uri link="https://nvd.nist.gov/nvd.cfm?cvename=CVE-2013-7353">CVE-2013-7353</uri>
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<uri link="https://nvd.nist.gov/nvd.cfm?cvename=CVE-2013-7354">CVE-2013-7354</uri>
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<uri link="https://nvd.nist.gov/nvd.cfm?cvename=CVE-2014-0333">CVE-2014-0333</uri>
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</references>
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<metadata tag="requester" timestamp="2014-05-15T04:38:43Z">
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BlueKnight
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</metadata>
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<metadata tag="submitter" timestamp="2015-06-06T23:44:55Z">
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pinkbyte
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</metadata>
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</glsa>
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