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author | Aaron Bauman <bman@gentoo.org> | 2018-10-06 13:10:01 -0400 |
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committer | Aaron Bauman <bman@gentoo.org> | 2018-10-06 13:10:01 -0400 |
commit | b914ac7ce64b6f61d701c5cf4173dd03fafdca0e (patch) | |
tree | 89fa637e14f7d64684db28c80c475c7ec5167bd3 /glsa-201810-04.xml | |
parent | [ GLSA 201810-03 ] OpenSSH: User enumeration vulnerability (diff) | |
download | glsa-b914ac7ce64b6f61d701c5cf4173dd03fafdca0e.tar.gz glsa-b914ac7ce64b6f61d701c5cf4173dd03fafdca0e.tar.bz2 glsa-b914ac7ce64b6f61d701c5cf4173dd03fafdca0e.zip |
[ GLSA 201810-04 ] ImageMagick: Security hardening
Signed-off-by: Aaron Bauman <bman@gentoo.org>
Diffstat (limited to 'glsa-201810-04.xml')
-rw-r--r-- | glsa-201810-04.xml | 76 |
1 files changed, 76 insertions, 0 deletions
diff --git a/glsa-201810-04.xml b/glsa-201810-04.xml new file mode 100644 index 00000000..8b1b96e8 --- /dev/null +++ b/glsa-201810-04.xml @@ -0,0 +1,76 @@ +<?xml version="1.0" encoding="UTF-8"?> +<!DOCTYPE glsa SYSTEM "http://www.gentoo.org/dtd/glsa.dtd"> +<glsa id="201810-04"> + <title>ImageMagick: Security hardening</title> + <synopsis>Due to multiple vulnerabilities in various coders used by + ImageMagick, Gentoo Linux now installs a policy.xml file which will + restrict coder usage by default. + </synopsis> + <product type="ebuild">imagemagick</product> + <announced>2018-10-06</announced> + <revised count="1">2018-10-06</revised> + <bug>664236</bug> + <access>local, remote</access> + <affected> + <package name="media-gfx/imagemagick" auto="yes" arch="*"> + <unaffected range="ge">6.9.10.10-r1</unaffected> + <unaffected range="ge">7.0.8.10-r1</unaffected> + <vulnerable range="lt">6.9.10.10-r1</vulnerable> + <vulnerable range="lt">7.0.8.10-r1</vulnerable> + </package> + </affected> + <background> + <p>ImageMagick is a collection of tools and libraries for many image + formats. + </p> + </background> + <description> + <p>If you process an image with ImageMagick and don’t validate the file + before (e.g. check magic byte), ImageMagick will call any coders found in + the given file. So if ImageMagick will find Ghostscript for example, it + will call Ghostscript. + </p> + + <p>Due to multiple -dSAFER sandbox bypass vulnerabilities in Ghostscript, + this can lead to arbitrary code execution. + </p> + + <p>To mitigate this problem we install a policy.xml file by default which + will disable PS, EPS, PDF, and XPS coders. + </p> + </description> + <impact type="normal"> + <p>A remote attacker, by enticing a user to process a specially crafted + image file, could execute arbitrary code with the privileges of the + process or cause a Denial of Service condition. + </p> + </impact> + <workaround> + <p>There is no known workaround at this time.</p> + </workaround> + <resolution> + <p>All ImageMagick 6 users should upgrade to the latest version:</p> + + <code> + # emerge --sync + # emerge --ask --oneshot --verbose + ">=media-gfx/imagemagick-6.9.10.10-r1" + </code> + + <p>All ImageMagick 7 users should upgrade to the latest version:</p> + + <code> + # emerge --sync + # emerge --ask --oneshot --verbose + ">=media-gfx/imagemagick-7.0.8.10-r1" + </code> + + </resolution> + <references> + <uri link="https://www.kb.cert.org/vuls/id/332928">Ghostscript contains + multiple -dSAFER sandbox bypass vulnerabilities (VU#332928) + </uri> + </references> + <metadata tag="requester" timestamp="2018-08-22T17:43:38Z">whissi</metadata> + <metadata tag="submitter" timestamp="2018-10-06T17:09:35Z">whissi</metadata> +</glsa> |