Date: Tue, 9 Aug 2011 15:48:10 -0400 (EDT) From: Josh Bressers <bressers@...hat.com> To: oss-security@...ts.openwall.com Cc: coley <coley@...re.org> Subject: Re: cve request: xpdf: insecure tempfile usage in zxpdf script Please use CVE-2011-2902. Thanks. -- JB ----- Original Message ----- > Hi, > > It was recently discovered that the compressed pdf handler script > (zxpdf) that shipped in the Debian xpdf package handles tempfiles > insecurely. Due to this flaw, a specifically-crafted pdf file name can > be used to delete files from the user's system (by taking advantage of > the tempfile cleanup trap; i.e. "rm -f <part of crafted file name>"). > > Note that as of version 3.02-13 (uploaded to Debian unstable on March > 4th, 2011), the zxpdf became the default xpdf pdf file handler. With > this being a default, the problem was promulgated to a much wider user > base; thus precipitating discovery of the flaw. I've now fixed the > problem in version 3.02-19 (uploaded to unstable on July 29th, 2011, > and > entered testing on July 31st). > > Credit goes to Chung-chieh Shan from Harvard for discovering the > issue. > See his bug report for more background and details: > http://bugs.debian.org/635849. > > Please assign an id. > > Thanks, > Mike
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