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diff --git a/metadata/glsa/glsa-200711-30.xml b/metadata/glsa/glsa-200711-30.xml new file mode 100644 index 000000000000..5a39d34d1a88 --- /dev/null +++ b/metadata/glsa/glsa-200711-30.xml @@ -0,0 +1,99 @@ +<?xml version="1.0" encoding="utf-8"?> +<!DOCTYPE glsa SYSTEM "http://www.gentoo.org/dtd/glsa.dtd"> +<glsa id="200711-30"> + <title>PCRE: Multiple vulnerabilities</title> + <synopsis> + PCRE is vulnerable to multiple buffer overflow and memory corruption + vulnerabilities, possibly leading to the execution of arbitrary code. + </synopsis> + <product type="ebuild">libpcre</product> + <announced>2007-11-20</announced> + <revised>2007-11-20: 01</revised> + <bug>198198</bug> + <access>remote</access> + <affected> + <package name="dev-libs/libpcre" auto="yes" arch="*"> + <unaffected range="ge">7.3-r1</unaffected> + <vulnerable range="lt">7.3-r1</vulnerable> + </package> + </affected> + <background> + <p> + PCRE is a library providing functions for Perl-compatible regular + expressions. + </p> + </background> + <description> + <p> + Tavis Ormandy (Google Security) discovered multiple vulnerabilities in + PCRE. He reported an error when processing "\Q\E" sequences with + unmatched "\E" codes that can lead to the compiled bytecode being + corrupted (CVE-2007-1659). PCRE does not properly calculate sizes for + unspecified "multiple forms of character class", which triggers a + buffer overflow (CVE-2007-1660). Further improper calculations of + memory boundaries were reported when matching certain input bytes + against regex patterns in non UTF-8 mode (CVE-2007-1661) and when + searching for unmatched brackets or parentheses (CVE-2007-1662). + Multiple integer overflows when processing escape sequences may lead to + invalid memory read operations or potentially cause heap-based buffer + overflows (CVE-2007-4766). PCRE does not properly handle "\P" and + "\P{x}" sequences which can lead to heap-based buffer overflows or + trigger the execution of infinite loops (CVE-2007-4767), PCRE is also + prone to an error when optimizing character classes containing a + singleton UTF-8 sequence which might lead to a heap-based buffer + overflow (CVE-2007-4768). + </p> + <p> + Chris Evans also reported multiple integer overflow vulnerabilities in + PCRE when processing a large number of named subpatterns ("name_count") + or long subpattern names ("max_name_size") (CVE-2006-7227), and via + large "min", "max", or "duplength" values (CVE-2006-7228) both possibly + leading to buffer overflows. Another vulnerability was reported when + compiling patterns where the "-x" or "-i" UTF-8 options change within + the pattern, which might lead to improper memory calculations + (CVE-2006-7230). + </p> + </description> + <impact type="normal"> + <p> + An attacker could exploit these vulnerabilities by sending specially + crafted regular expressions to applications making use of the PCRE + library, which could possibly lead to the execution of arbitrary code, + a Denial of Service or the disclosure of sensitive information. + </p> + </impact> + <workaround> + <p> + There is no known workaround at this time. + </p> + </workaround> + <resolution> + <p> + All PCRE users should upgrade to the latest version: + </p> + <code> + # emerge --sync + # emerge --ask --oneshot --verbose ">=dev-libs/libpcre-7.3-r1"</code> + </resolution> + <references> + <uri link="https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2006-7227">CVE-2006-7227</uri> + <uri link="https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2006-7228">CVE-2006-7228</uri> + <uri link="https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2006-7230">CVE-2006-7230</uri> + <uri link="https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2007-1659">CVE-2007-1659</uri> + <uri link="https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2007-1660">CVE-2007-1660</uri> + <uri link="https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2007-1661">CVE-2007-1661</uri> + <uri link="https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2007-1662">CVE-2007-1662</uri> + <uri link="https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2007-4766">CVE-2007-4766</uri> + <uri link="https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2007-4767">CVE-2007-4767</uri> + <uri link="https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2007-4768">CVE-2007-4768</uri> + </references> + <metadata tag="requester" timestamp="2007-11-09T10:23:13Z"> + rbu + </metadata> + <metadata tag="submitter" timestamp="2007-11-20T00:43:59Z"> + rbu + </metadata> + <metadata tag="bugReady" timestamp="2007-11-20T00:44:04Z"> + rbu + </metadata> +</glsa> |