Test ID:	1.3.6.1.4.1.25623.1.0.51475
Category:	Conectiva Local Security Checks
Title:	Conectiva Security Advisory CLA-2003:771
Summary:	Conectiva Security Advisory CLA-2003:771
Description:	The remote host is missing updates announced in advisory CLA-2003:771. The anonftp package contains a chroot environment used by some FTP servers (e. g. wu-ftpd) when serving anonymous FTP sessions. Among the utilities provided, is the ls program, used to list information about files and directories. This update is a follow-up to the CLSA-2003:768 announcement[1], which fixed a memory starvation vulnerability in the ls program (from the fileutils package). Since the anonftp package contains a copy of the ls program, it is also being updated. Below is a copy of our previous text describing the vulnerability: Georgi Guninski discovered[2] a memory starvation denial of service vulnerability in the ls program. It is possible to make ls allocate a huge amount of memory by calling it with the parameters -w X -C (where X is an arbitrary large number). The Common Vulnerabilities and Exposures project (cve.mitre.org) has assigned the name CVE-2003-0854[3] to this issue. This vulnerability is remotely exploitable in scenarios where remote applications allow users to call ls without filtering the supplied parameters. An example of such a scenario is the use of the wu-ftpd FTP server. Additionally, this update fixes an integer overflow in ls which seems to be non-exploitable. The overflow occurs in the usage of the -w parameter under the same circumstances of the aforementioned memory starvation vulnerability. The Common Vulnerabilities and Exposures project (cve.mitre.org) has assigned the name CVE-2003-0853[4] to this issue. Solution: The apt tool can be used to perform RPM package upgrades by running 'apt-get update' followed by 'apt-get upgrade' http://distro.conectiva.com.br/atualizacoes/index.php?id=a&anuncio=000768&idioma=en http://www.guninski.com/binls.html http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2003-0854 http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2003-0853 http://www.securityspace.com/smysecure/catid.html?in=CLA-2003:771 http://distro.conectiva.com.br/atualizacoes/index.php?id=a&anuncio=002003 Risk factor : Medium
Cross-Ref:	Common Vulnerability Exposure (CVE) ID: CVE-2003-0854 http://lists.grok.org.uk/pipermail/full-disclosure/2003-October/012548.html http://www.milw0rm.com/exploits/115 http://www.guninski.com/binls.html Conectiva Linux advisory: CLA-2003:768 http://distro.conectiva.com.br/atualizacoes/?id=a&anuncio=000768 Conectiva Linux advisory: CLA-2003:771 http://distro.conectiva.com.br/atualizacoes/?id=a&anuncio=000771 Debian Security Information: DSA-705 (Google Search) http://www.debian.org/security/2005/dsa-705 Immunix Linux Advisory: IMNX-2003-7+-026-01 http://www.securityfocus.com/advisories/6014 http://www.mandriva.com/security/advisories?name=MDKSA-2003:106 http://www.redhat.com/support/errata/RHSA-2003-309.html http://www.redhat.com/support/errata/RHSA-2003-310.html TurboLinux Advisory: TLSA-2003-60 http://www.turbolinux.com/security/TLSA-2003-60.txt http://secunia.com/advisories/10126 http://secunia.com/advisories/17069 Common Vulnerability Exposure (CVE) ID: CVE-2003-0853 BugTraq ID: 8875 http://www.securityfocus.com/bid/8875
Copyright	Copyright (c) 2005 E-Soft Inc. http://www.securityspace.com

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