Gentoo Forums
Gentoo Forums
Gentoo Forums
Quick Search: in
[ GLSA 200507-21 ] fetchmail: Buffer Overflow
View unanswered posts
View posts from last 24 hours

 
Reply to topic    Gentoo Forums Forum Index News & Announcements
View previous topic :: View next topic  
Author Message
GLSA
Veteran
Veteran


Joined: 12 May 2004
Posts: 1471

PostPosted: Mon Jul 25, 2005 9:03 pm    Post subject: [ GLSA 200507-21 ] fetchmail: Buffer Overflow Reply with quote

Gentoo Linux Security Advisory

Title: fetchmail: Buffer Overflow (GLSA 200507-21)
Severity: normal
Exploitable: remote
Date: July 25, 2005
Bug(s): #99865
ID: 200507-21

Synopsis

fetchmail is susceptible to a buffer overflow resulting in a Denial of Service or arbitrary code execution.

Background

fetchmail is a utility that retrieves and forwards mail from remote systems using IMAP, POP, and other protocols.

Affected Packages

Package: net-mail/fetchmail
Vulnerable: < 6.2.5.2
Unaffected: >= 6.2.5.2
Architectures: All supported architectures


Description

fetchmail does not properly validate UIDs coming from a POP3 mail server. The UID is placed in a fixed length buffer on the stack, which can be overflown.

Impact

Very long UIDs returned from a malicious or compromised POP3 server can cause fetchmail to crash, resulting in a Denial of Service, or allow arbitrary code to be placed on the stack.

Workaround

There are no known workarounds at this time.

Resolution

All fetchmail users should upgrade to the latest version:
Code:
# emerge --sync
# emerge --ask --oneshot --verbose ">=net-mail/fetchmail-6.2.5.2"


References

Fetchmail Security Advisory
CAN-2005-2335


Last edited by GLSA on Sun May 07, 2006 4:58 pm; edited 1 time in total
Back to top
View user's profile Send private message
Display posts from previous:   
Reply to topic    Gentoo Forums Forum Index News & Announcements All times are GMT
Page 1 of 1

 
Jump to:  
You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot vote in polls in this forum