National Cyber Awareness System

Vulnerability Summary for CVE-2011-0017

Overview

The open_log function in log.c in Exim 4.72 and earlier does not check the return value from (1) setuid or (2) setgid system calls, which allows local users to append log data to arbitrary files via a symlink attack.

Impact

CVSS Severity (version 2.0):

CVSS Version 2 Metrics:

References to Advisories, Solutions, and Tools

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External Source: MLIST

Name: [exim-announce] 20110125 Exim 4.74 Release

Type: Patch Information

Hyperlink:http://lists.exim.org/lurker/message/20110126.034702.4d69c278.en.html

External Source: XF

Name: exim-openlog-privilege-escalation(65028)

Hyperlink:http://xforce.iss.net/xforce/xfdb/65028

External Source: VUPEN

Name: ADV-2011-0464

Hyperlink:http://www.vupen.com/english/advisories/2011/0464

External Source: VUPEN

Name: ADV-2011-0364

Hyperlink:http://www.vupen.com/english/advisories/2011/0364

External Source: VUPEN

Name: ADV-2011-0245

Type: Advisory

Hyperlink:http://www.vupen.com/english/advisories/2011/0245

External Source: VUPEN

Name: ADV-2011-0224

Type: Advisory

Hyperlink:http://www.vupen.com/english/advisories/2011/0224

External Source: UBUNTU

Name: USN-1060-1

Hyperlink:http://www.ubuntu.com/usn/USN-1060-1

External Source: BID

Name: 46065

Hyperlink:http://www.securityfocus.com/bid/46065

External Source: DEBIAN

Name: DSA-2154

Hyperlink:http://www.debian.org/security/2011/dsa-2154

External Source: SECUNIA

Name: 43243

Hyperlink:http://secunia.com/advisories/43243

External Source: SECUNIA

Name: 43128

Type: Advisory

Hyperlink:http://secunia.com/advisories/43128

External Source: SECUNIA

Name: 43101

Type: Advisory

Hyperlink:http://secunia.com/advisories/43101

External Source: OSVDB

Name: 70696

Hyperlink:http://osvdb.org/70696

External Source: SUSE

Name: SUSE-SR:2011:004

Hyperlink:http://lists.opensuse.org/opensuse-security-announce/2011-02/msg00004.html

External Source: CONFIRM

Name: ftp://ftp.exim.org/pub/exim/ChangeLogs/ChangeLog-4.74

Hyperlink:ftp://ftp.exim.org/pub/exim/ChangeLogs/ChangeLog-4.74