| <?xml version="1.0" encoding="UTF-8"?> |
| <!DOCTYPE glsa SYSTEM "http://www.gentoo.org/dtd/glsa.dtd"> |
| <glsa id="201209-12"> |
| <title>Libtasn1: Denial of Service</title> |
| <synopsis>A vulnerability in Libtasn1 might cause a Denial of Service |
| condition. |
| </synopsis> |
| <product type="ebuild">libtasn1</product> |
| <announced>September 25, 2012</announced> |
| <revised>September 25, 2012: 1</revised> |
| <bug>409031</bug> |
| <access>remote</access> |
| <affected> |
| <package name="dev-libs/libtasn1" auto="yes" arch="*"> |
| <unaffected range="ge">2.12</unaffected> |
| <vulnerable range="lt">2.12</vulnerable> |
| </package> |
| </affected> |
| <background> |
| <p>Libtasn1 is a library used to parse ASN.1 (Abstract Syntax Notation One) |
| objects, and perform DER (Distinguished Encoding Rules) decoding. |
| </p> |
| </background> |
| <description> |
| <p>Libtasn1 does not properly handle length fields when performing DER |
| decoding. |
| </p> |
| </description> |
| <impact type="normal"> |
| <p>A remote attacker could entice a user to open a specially crafted |
| DER-encoded object in an application linked against Libtasn1, possibly |
| resulting in Denial of Service. |
| </p> |
| </impact> |
| <workaround> |
| <p>There is no known workaround at this time.</p> |
| </workaround> |
| <resolution> |
| <p>All Libtasn1 users should upgrade to the latest version:</p> |
| |
| <code> |
| # emerge --sync |
| # emerge --ask --oneshot --verbose ">=dev-libs/libtasn1-2.12" |
| </code> |
| |
| <p>Packages which depend on this library may need to be recompiled. Tools |
| such as revdep-rebuild may assist in identifying some of these packages. |
| </p> |
| </resolution> |
| <references> |
| <uri link="http://nvd.nist.gov/nvd.cfm?cvename=CVE-2012-1569">CVE-2012-1569</uri> |
| </references> |
| <metadata tag="requester" timestamp="Tue, 14 Aug 2012 16:07:38 +0000"> |
| keytoaster |
| </metadata> |
| <metadata tag="submitter" timestamp="Tue, 25 Sep 2012 21:25:29 +0000">ackle</metadata> |
| </glsa> |