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Diffstat (limited to 'metadata/glsa/glsa-200405-19.xml')
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diff --git a/metadata/glsa/glsa-200405-19.xml b/metadata/glsa/glsa-200405-19.xml new file mode 100644 index 000000000000..0e2f2535748d --- /dev/null +++ b/metadata/glsa/glsa-200405-19.xml @@ -0,0 +1,74 @@ +<?xml version="1.0" encoding="utf-8"?> +<!DOCTYPE glsa SYSTEM "http://www.gentoo.org/dtd/glsa.dtd"> +<glsa id="200405-19"> + <title>Opera telnet URI handler file creation/truncation vulnerability</title> + <synopsis> + A vulnerability exists in Opera's telnet URI handler that may allow a + remote attacker to overwrite arbitrary files. + </synopsis> + <product type="ebuild">opera</product> + <announced>2004-05-25</announced> + <revised count="03">2007-12-30</revised> + <bug>50857</bug> + <access>remote</access> + <affected> + <package name="www-client/opera" auto="yes" arch="*"> + <unaffected range="ge">7.50_beta1</unaffected> + <vulnerable range="lt">7.50_beta1</vulnerable> + </package> + </affected> + <background> + <p> + Opera is a multi-platform web browser. + </p> + </background> + <description> + <p> + The telnet URI handler in Opera does not check for leading '-' + characters in the host name. Consequently, a maliciously-crafted + telnet:// link may be able to pass options to the telnet program + itself. One example would be the following: + </p> + <p> + telnet://-nMyFile + </p> + <p> + If MyFile exists in the user's home directory and the user clicking on + the link has write permissions to it, the contents of the file will be + overwritten with the output of the telnet trace information. If MyFile + does not exist, the file will be created in the user's home directory. + </p> + </description> + <impact type="normal"> + <p> + This exploit has two possible impacts. First, it may create new files + in the user's home directory. Second, and far more serious, it may + overwrite existing files that the user has write permissions to. An + attacker with some knowledge of a user's home directory might be able + to destroy important files stored within. + </p> + </impact> + <workaround> + <p> + Disable the telnet URI handler from within Opera. + </p> + </workaround> + <resolution> + <p> + All Opera users are encouraged to upgrade to the latest version of the + program: + </p> + <code> + # emerge sync + + # emerge -pv ">=www-client/opera-7.50_beta1" + # emerge ">=www-client/opera-7.50_beta1"</code> + </resolution> + <references> + <uri link="http://www.idefense.com/application/poi/display?id=104&type=vulnerabilities&flashstatus=true">iDEFENSE Security Advisory 05.12.04</uri> + <uri link="https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2004-0473">CVE-2004-0473</uri> + </references> + <metadata tag="submitter"> + klieber + </metadata> +</glsa> |