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Gentoo Linux Security Advisory GLSA 200711-13 |
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http://security.gentoo.org/ |
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Severity: Normal |
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Title: 3proxy: Denial of Service |
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Date: November 08, 2007 |
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Bugs: #196772 |
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ID: 200711-13 |
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Synopsis |
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======== |
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|
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A vulnerability has been discovered in 3proxy, possibly resulting in a |
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Denial of Service. |
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|
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Background |
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========== |
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|
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3proxy is a really tiny cross-platform proxy servers set, including |
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HTTP, HTTPS, FTP, SOCKS and POP3 support. |
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|
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Affected packages |
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================= |
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|
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------------------------------------------------------------------- |
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Package / Vulnerable / Unaffected |
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------------------------------------------------------------------- |
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1 net-proxy/3proxy < 0.5.3j >= 0.5.3j |
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|
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Description |
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=========== |
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|
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3proxy contains a double free vulnerability in the ftpprchild() |
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function, which frees param->hostname and calls the parsehostname() |
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function, which in turn attempts to free param->hostname again. |
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|
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Impact |
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====== |
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|
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A remote attacker could send a specially crafted request to the proxy, |
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possibly resulting in a Denial of Service. Under typical configuration, |
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the scope of this vulnerability is limited to the local network. |
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|
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Workaround |
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========== |
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There is no known workaround at this time. |
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Resolution |
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========== |
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All 3proxy users should upgrade to the latest version: |
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# emerge --sync |
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# emerge --ask --oneshot --verbose ">=net-proxy/3proxy-0.5.3j" |
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|
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References |
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========== |
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|
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[ 1 ] CVE-2007-5622 |
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http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2007-5622 |
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|
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Availability |
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============ |
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|
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This GLSA and any updates to it are available for viewing at |
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the Gentoo Security Website: |
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|
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http://security.gentoo.org/glsa/glsa-200711-13.xml |
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Concerns? |
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========= |
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|
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Security is a primary focus of Gentoo Linux and ensuring the |
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confidentiality and security of our users machines is of utmost |
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importance to us. Any security concerns should be addressed to |
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security@g.o or alternatively, you may file a bug at |
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http://bugs.gentoo.org. |
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|
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License |
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======= |
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|
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Copyright 2007 Gentoo Foundation, Inc; referenced text |
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belongs to its owner(s). |
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|
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The contents of this document are licensed under the |
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Creative Commons - Attribution / Share Alike license. |
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http://creativecommons.org/licenses/by-sa/2.5 |
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