Improper Input Validation Affecting exim4 package, versions <4.72-4
Threat Intelligence
EPSS
0.04% (11th
percentile)
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Test your applications- Snyk ID SNYK-DEBIAN11-EXIM4-517467
- published 2 Feb 2011
- disclosed 2 Feb 2011
How to fix?
Upgrade Debian:11 exim4 to version 4.72-4 or higher.
NVD Description
Note: Versions mentioned in the description apply only to the upstream exim4 package and not the exim4 package as distributed by Debian.
See How to fix? for Debian:11 relevant fixed versions and status.
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.
References
- https://security-tracker.debian.org/tracker/CVE-2011-0017
- http://www.debian.org/security/2011/dsa-2154
- ftp://ftp.exim.org/pub/exim/ChangeLogs/ChangeLog-4.74
- http://lists.exim.org/lurker/message/20110126.034702.4d69c278.en.html
- http://osvdb.org/70696
- http://www.vupen.com/english/advisories/2011/0224
- http://www.vupen.com/english/advisories/2011/0245
- http://www.vupen.com/english/advisories/2011/0364
- http://www.vupen.com/english/advisories/2011/0464
- http://xforce.iss.net/xforce/xfdb/65028
- http://lists.opensuse.org/opensuse-security-announce/2011-02/msg00004.html
- http://secunia.com/advisories/43101
- http://secunia.com/advisories/43128
- http://secunia.com/advisories/43243
- http://www.securityfocus.com/bid/46065
- http://www.ubuntu.com/usn/USN-1060-1
- https://exchange.xforce.ibmcloud.com/vulnerabilities/65028
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