From jaervosz@gentoo.org Mon May 23 16:36:19 2005 From: Sune Kloppenborg Jeppesen To: gentoo-announce@gentoo.org Cc: full-disclosure@lists.grok.org.uk, bugtraq@securityfocus.com, security-alerts@linuxsecurity.com Date: Mon, 23 May 2005 22:26:51 +0200 Subject: [Full-disclosure] [ GLSA 200505-18 ] Net-SNMP: fixproc insecure temporary file creation - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Gentoo Linux Security Advisory GLSA 200505-18 - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - http://security.gentoo.org/ - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Severity: Normal Title: Net-SNMP: fixproc insecure temporary file creation Date: May 23, 2005 Bugs: #91792 ID: 200505-18 - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Synopsis ======== Net-SNMP creates temporary files in an insecure manner, possibly allowing the execution of arbitrary code. Background ========== Net-SNMP is a suite of applications used to implement the Simple Network Management Protocol. Affected packages ================= ------------------------------------------------------------------- Package / Vulnerable / Unaffected ------------------------------------------------------------------- 1 net-analyzer/net-snmp < 5.2.1-r1 >= 5.2.1-r1 Description =========== The fixproc application of Net-SNMP creates temporary files with predictable filenames. Impact ====== A malicious local attacker could exploit a race condition to change the content of the temporary files before they are executed by fixproc, possibly leading to the execution of arbitrary code. A local attacker could also create symbolic links in the temporary files directory, pointing to a valid file somewhere on the filesystem. When fixproc is executed, this would result in the file being overwritten. Workaround ========== There is no known workaround at this time. Resolution ========== All Net-SNMP users should upgrade to the latest available version: # emerge --sync # emerge --ask --oneshot --verbose ">=net-analyzer/net-snmp-5.2.1-r1" Availability ============ This GLSA and any updates to it are available for viewing at the Gentoo Security Website: http://security.gentoo.org/glsa/glsa-200505-18.xml Concerns? ========= Security is a primary focus of Gentoo Linux and ensuring the confidentiality and security of our users machines is of utmost importance to us. Any security concerns should be addressed to security@gentoo.org or alternatively, you may file a bug at http://bugs.gentoo.org. License ======= Copyright 2005 Gentoo Foundation, Inc; referenced text belongs to its owner(s). The contents of this document are licensed under the Creative Commons - Attribution / Share Alike license. http://creativecommons.org/licenses/by-sa/2.0 [ Part 1.2, Application/PGP-SIGNATURE 196bytes. ] [ Unable to print this part. ] [ Part 2: "Attached Text" ] _______________________________________________ Full-Disclosure - We believe in it. Charter: http://lists.grok.org.uk/full-disclosure-charter.html Hosted and sponsored by Secunia - http://secunia.com/