Perl PERLIO_DEBUG environment variable file overwrite
| perl-perliodebug-file-overwrite (19207) |  Medium Risk |
Description:
Perl (Practical Extraction and Reporting Language) could allow a remote attacker to overwrite arbitrary files, caused by a vulnerability in the handling of the debug message in the PERLIO_DEBUG environment variable. When Perl is installed with setuid support (sperl), a local attacker could modify the PERLIO_DEBUG environment variable to overwrite arbitrary files on the system.
Platforms Affected:
- Canonical, Ubuntu 4.10
- Gentoo, Linux
- Larry Wall, Perl 5.x
- MandrakeSoft, Mandrake Linux 10.0 AMD64
- MandrakeSoft, Mandrake Linux 10.0
- MandrakeSoft, Mandrake Linux 10.1 X86_64
- MandrakeSoft, Mandrake Linux 10.1
- MandrakeSoft, Mandrake Linux 9.2 AMD64
- MandrakeSoft, Mandrake Linux 9.2
- MandrakeSoft, Mandrake Linux Corporate Server 2.1 X86_64
- MandrakeSoft, Mandrake Linux Corporate Server 2.1
- MandrakeSoft, Mandrake Linux Corporate Server 3.0
- MandrakeSoft, Mandrake Linux Corporate Server 3.0 X86_64
- RedHat, Enterprise Linux 3 ES
- RedHat, Enterprise Linux 3 WS
- RedHat, Enterprise Linux 3 AS
- RedHat, Enterprise Linux 3 Desktop
- RedHat, Enterprise Linux 4 WS
- RedHat, Enterprise Linux 4 ES
- RedHat, Enterprise Linux 4 AS
- RedHat, Enterprise Linux 4 Desktop
Remedy:
For Ubuntu Linux:
Upgrade to the latest perl package (5.8.4-2ubuntu0.3 or later), as listed in USN-72-1 February 02, 2005. See References.
For Red Hat Linux:
Refer to RHSA-2005:103-04 or RHSA-2005:105-11 for patch, upgrade, or suggested workaround information. See References.
For Gentoo Linux:
Refer to Gentoo Linux Security Announcement GLSA 2005-02-13 for patch, upgrade, or suggested workaround information. See References.
Consequences:
File Manipulation
References:
- CIAC Information Bulletin P-122, Updated Perl Packages Fix Security Issues at http://www.ciac.org/ciac/bulletins/p-122.shtml.
- ASA-2006-163: perl security update (RHSA-2006-0605)
- BID-12426: Perl SuidPerl Multiple Local Vulnerabilities
- CVE-2005-0155: The PerlIO implementation in Perl 5.8.0, when installed with setuid support (sperl), allows local users to create arbitrary files via the PERLIO_DEBUG variable.
- GLSA-200502-13: Perl: Vulnerabilities in perl-suid wrapper
- MDKSA-2005:031: Updated perl packages fix multiple vulnerabilities
- RHSA-2005-103: perl security update
- RHSA-2005-105: perl security update
- SA14120: Perl "PERLIO_DEBUG" Privilege Escalation Vulnerabilities
- SA21646: Avaya Products Perl "PERLIO_DEBUG" Privilege Escalation
- SUSE-SR:2005:004: SUSE Security Summary Report
- USN-72-1: Perl vulnerabilities
Reported:
Feb 02, 2005
The information within this database may change without notice. Use of this information constitutes acceptance for use in an AS IS condition. There are NO warranties, implied or otherwise, with regard to this information or its use. Any use of this information is at the user's risk. In no event shall the author/distributor (IBM Internet Security Systems X-Force) be held liable for any damages whatsoever arising out of or in connection with the use or spread of this information.
For corrections or additions please email xforce@iss.net