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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 >> Ubuntu Local Security Checks >> USN72-1 : perl vulnerabilities Vulnerability Assessment Details
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USN72-1 : perl vulnerabilities |
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perl vulnerabilities Detailed Explanation for this Vulnerability Assessment Summary : These remote packages are missing security patches : - libcgi-fast-perl - libperl-dev - libperl5.8 - perl - perl-base - perl-debug - perl-doc - perl-modules - perl-suid Description : Two exploitable vulnerabilities involving setuid-enabled perl scripts have been discovered. The package "perl-suid" provides a wrapper around perl which permits to use setuid-root perl scripts, i.e. user-callable Perl scripts which have full root rights. Previous versions permited users to overwrite arbitrary files by setting the PERLIO_DEBUG environment variable and calling an arbitrary setuid-root perl script. The file that PERLIO_DEBUG points to was then overwritten by Perl debug messages. This did not permit precise control over the file content, but could destroy important data. PERLIO_DEBUG is now ignored for setuid scripts. (CVE-2005-0155) In addition, calling a setuid-root perl script with a very long path caused a buffer overflow if PERLIO_DEBUG was set. This buffer overflow could be exploited to execute arbitrary files with full root rights. (CVE-2005-0156) Solution : Upgrade to : - libcgi-fast-perl-5.8.4-2ubuntu0.3 (Ubuntu 4.10) - libperl-dev-5.8.4-2ubuntu0.3 (Ubuntu 4.10) - libperl5.8-5.8.4-2ubuntu0.3 (Ubuntu 4.10) - perl-5.8.4-2ubuntu0.3 (Ubuntu 4.10) - perl-base-5.8.4-2ubuntu0.3 (Ubuntu 4.10) - perl-debug-5.8.4-2ubuntu0.3 (Ubuntu 4.10) - perl-doc-5.8.4-2ubuntu0.3 (Ubuntu 4.10) - perl-modules-5.8.4-2ubuntu0.3 (Ubuntu 4.10) - perl-suid-5.8.4-2ubuntu0.3 (Ubuntu 4.10) Network Security Threat Level: High Networks Security ID: Vulnerability Assessment Copyright: Ubuntu Security Notice (C) 2005 Canonical, Inc. / NASL script (C) 2005 Michel Arboi |
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