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Vulnerability Assessment & Network Security Forums |
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If through a vulnerability assessment, a network security issue is detected for the vulnerability below, applying the appropriate security patches in a timely matter is very important. If you have detected that your system has already been compromised, following CERT's Network Security recovery document will assist with recommended steps for system recovery. Home >> Browse Vulnerability Assessment Database >> Gentoo Local Security Checks >> [GLSA-200501-02] a2ps: Multiple vulnerabilities Vulnerability Assessment Details
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[GLSA-200501-02] a2ps: Multiple vulnerabilities |
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a2ps: Multiple vulnerabilities Detailed Explanation for this Vulnerability Assessment The remote host is affected by the vulnerability described in GLSA-200501-02 (a2ps: Multiple vulnerabilities) Javier Fernandez-Sanguino Pena discovered that the a2ps package contains two scripts that create insecure temporary files (fixps and psmandup). Furthermore, we fixed in a previous revision a vulnerability in a2ps filename handling (CVE-2004-1170). Impact A local attacker could create symbolic links in the temporary files directory, pointing to a valid file somewhere on the filesystem. When fixps or psmandup is executed, this would result in the file being overwritten with the rights of the user running the utility. By enticing a user or script to run a2ps on a malicious filename, an attacker could execute arbitrary commands on the system with the rights of that user or script. Workaround There is no known workaround at this time. References: http://secunia.com/advisories/13641/ http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2004-1170 http://lists.netsys.com/pipermail/full-disclosure/2004-August/025678.html Solution: All a2ps users should upgrade to the latest version: # emerge --sync # emerge --ask --oneshot --verbose ">=app-text/a2ps-4.13c-r2" Network Security Threat Level: Medium Networks Security ID: Vulnerability Assessment Copyright: (C) 2005 Michel Arboi |
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Security, Firewall, VPN |
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