cURL/libcURL CVE-2017-1000257 Buffer Overflow Vulnerability

Bugtraq ID:	101519
Class:	Boundary Condition Error
CVE:	CVE-2017-1000257
Remote:	Yes
Local:	No
Published:	Oct 23 2017 12:00AM
Updated:	Oct 23 2017 12:00AM
Credit:	Brian Carpenter, Geeknik Labs and 0xd34db347.
Vulnerable:	Redhat Software Collections for RHEL 0 Redhat Enterprise Linux 7 Haxx Libcurl 7.56 Haxx Libcurl 7.55.1 Haxx Libcurl 7.54.1 Haxx Libcurl 7.54 Haxx Libcurl 7.53.1 Haxx Libcurl 7.53 Haxx Libcurl 7.52 Haxx Libcurl 7.51 Haxx Libcurl 7.50.3 Haxx Libcurl 7.50.2 Haxx Libcurl 7.50.1 Haxx Libcurl 7.50 Haxx Libcurl 7.47 Haxx Libcurl 7.46 Haxx Libcurl 7.36 Haxx Libcurl 7.25 Haxx Libcurl 7.23 Haxx Libcurl 7.22 Haxx Libcurl 7.21 Haxx Libcurl 7.20 Haxx Libcurl 7.55.0 Haxx Libcurl 7.52.1 Haxx Libcurl 7.48.0 Haxx Libcurl 7.40.0 Haxx Libcurl 7.35.0 Haxx Libcurl 7.24.0 Haxx Libcurl 7.23.1 Haxx Libcurl 7.21.7 Haxx Libcurl 7.21.6 Haxx Libcurl 7.21.5 Haxx Libcurl 7.21.4 Haxx Libcurl 7.21.3 Haxx Libcurl 7.21.2 Haxx Libcurl 7.21.1 Haxx Curl 7.56 Haxx Curl 7.55.1 Haxx Curl 7.55 Haxx Curl 7.54.1 Haxx Curl 7.54 Haxx Curl 7.53.1 Haxx Curl 7.53 Haxx Curl 7.52 Haxx Curl 7.51 Haxx Curl 7.50.3 Haxx Curl 7.50 Haxx Curl 7.47 Haxx Curl 7.46 Haxx Curl 7.36 Haxx Curl 7.25 Haxx Curl 7.23 Haxx Curl 7.22 Haxx Curl 7.21 Haxx Curl 7.20 Haxx Curl 7.52.1 Haxx Curl 7.50.1 Haxx Curl 7.48.0 Haxx Curl 7.40.0 Haxx Curl 7.35.0 Haxx Curl 7.24.0 Haxx Curl 7.23.1 Haxx Curl 7.21.7 Haxx Curl 7.21.6 Haxx Curl 7.21.5 Haxx Curl 7.21.4 Haxx Curl 7.21.3 Haxx Curl 7.21.2 Haxx Curl 7.21.1
Not Vulnerable:	Haxx Libcurl 7.56.1 Haxx Curl 7.56.1

cURL/libcURL CVE-2017-1000257 Buffer Overflow Vulnerability

cURL/libcURL is prone to a buffer-overflow vulnerability because it fails to adequately bounds-check user-supplied data before copying it into an insufficiently sized buffer.

Attackers can exploit this issue to obtain sensitive information that may aid in launching further attacks. Failed exploit attempts will result in denial-of-service conditions.

cURL/libcURL 7.20.0 through 7.56.0 are vulnerable.

cURL/libcURL CVE-2017-1000257 Buffer Overflow Vulnerability

Currently, we are not aware of any working exploits. If you feel we are in error or if you are aware of more recent information, please mail us at: [email protected].

cURL/libcURL CVE-2017-1000257 Buffer Overflow Vulnerability

Solution:
Updates are available. Please see the references or vendor advisory for more information.

cURL/libcURL CVE-2017-1000257 Buffer Overflow Vulnerability

References:

• cURL Home Page (cURL)
  
• introducing IMAP, POP3 and SMTP support (still lots of polish left to (curl)
  
• Bug 1503705 - (CVE-2017-1000257) CVE-2017-1000257 curl: IMAP FETCH response out (Redhat)
  
• CVE-2017-1000257 (Redhat)
  
• IMAP FETCH response out of bounds read (curl)