Bug 260601 (CVE-2007-4565) - CVE-2007-4565 Fetchmail NULL pointer dereference
Summary: CVE-2007-4565 Fetchmail NULL pointer dereference
Alias: CVE-2007-4565
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
Target Milestone: ---
Assignee: Red Hat Product Security
QA Contact:
URL: http://nvd.nist.gov/nvd.cfm?cvename=C...
Depends On: 260861 260881 516266 516267 516268 516269 516270
TreeView+ depends on / blocked
Reported: 2007-08-28 15:50 UTC by Red Hat Product Security
Modified: 2019-09-29 12:20 UTC (History)
4 users (show)

Fixed In Version:
Doc Type: Bug Fix
Doc Text:
Clone Of:
Last Closed: 2009-11-19 16:41:49 UTC

Attachments (Terms of Use)

System ID Private Priority Status Summary Last Updated
Red Hat Product Errata RHSA-2009:1427 0 normal SHIPPED_LIVE Moderate: fetchmail security update 2009-09-08 15:20:37 UTC

Comment 1 Lubomir Kundrak 2007-08-28 15:52:57 UTC
Common Vulnerabilities and Exposures assigned an identifier CVE-2007-4565
to the following vulnerability:

fetchmail before 6.3.9 allows context-dependent attackers to cause a
denial of service (NULL dereference and application crash) by refusing
certain warning messages that are sent over SMTP.


Comment 3 Lubomir Kundrak 2007-08-29 16:05:29 UTC
Fetchmail dereferences NULL after SMTP server not accepting his warning mail to
postmaster. Attacker could possibly make fetchmail generate a warning (i.e. by
sending too big/malformed mail), but is pretty limited in how could he get the
SMTP server refuse a message (maybe fill his mail queue storage by sending lots
of mails). All he would get would be to crash the fetchmail.

Comment 4 Lubomir Kundrak 2007-08-29 16:07:00 UTC
The Red Hat Security Response Team has rated this issue as having low security
impact, a future update may address this flaw. More information regarding issue
severity can be found here: 


Comment 7 errata-xmlrpc 2009-09-08 15:20:56 UTC
This issue has been addressed in following products:

  Red Hat Enterprise Linux 3
  Red Hat Enterprise Linux 4
  Red Hat Enterprise Linux 5

Via RHSA-2009:1427 https://rhn.redhat.com/errata/RHSA-2009-1427.html

Comment 8 Red Hat Bugzilla 2009-10-23 19:03:56 UTC
Reporter changed to security-response-team by request of Jay Turner.

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