|
Pegasus Mail Buffer Overflow and Off-by-One Vulnerabilities
|
|
Secunia Advisory:
|
SA17992
|
|
|
Release Date:
|
2005-12-20
|
|
Popularity:
|
7,842 views
|
|
|
Critical:
|
Moderately critical
|
|
Impact:
|
System access
|
|
Where:
|
From remote
|
|
Solution Status:
|
Vendor Patch
|
|
| Software: | Pegasus Mail for 32-bit Windows Systems 4.x
|
|
|
Secunia CVSS-2 Score:
|
Available in Secunia business solutions 
|
|
|
Subscribe:
|
Instant alerts on relevant vulnerabilities
|
|
| Advisory Content (Page 1 of 3) | [ 1 ] [ 2 ] [ 3 ] | |
|
Description:
Secunia Research has discovered two vulnerabilities in Pegasus Mail, which can be exploited by malicious people to compromise a user's system.
1) A boundary error exists when using the reply from a POP3 server to construct trace messages that are displayed to the user if an error occurs when downloading emails. This can be exploited to cause a stack-based buffer overflow via an overly long POP3 reply.
Successful exploitation allows arbitrary code execution but requires that the user is e.g. tricked into connecting to a malicious POP3 server.
2) An off-by-one error exists when displaying the RFC2822 message headers of an email to the user. This can be exploited to overwrite the least significant byte of the saved EBP via a email message header that is 1022 bytes or longer. This allows code execution on a Windows XP system.
Successful exploitation requires that the user is e.g. tricked into viewing the headers of a malicious email via the "Message headers..." menu item in the context menu of the email message.
The vulnerabilities have been confirmed in version 4.21c and 4.30PB1 (Public Beta 1), and also affects version 4.21a and 4.21b.
Change Page:
[ 1 ] [ 2 ] [ 3 ]
|
|
|
Track this Secunia Advisory
|
Customers of the Secunia Vulnerability Intelligence solutions will automatically receive updates when new information regarding this advisory is released.
Read more about our Vulnerability Intelligence solutions and what they can do for you and your company.
|
|
|
About this Secunia Advisory
|
Please note: The information that this Secunia Advisory is based on comes from a third party unless stated otherwise.
Secunia collects, validates, and verifies all vulnerability reports issued by security research groups, vendors, and others.
|
