[Forgot Password]
Login  Register Subscribe

23631

 
 

115084

 
 

97147

 
 

909

 
 

78730

 
 

109

Paid content will be excluded from the download.


Download | Alert*
CVE
view XML

CVE-2017-13090

Date: (C)2017-10-30   (M)2017-11-18 


The retr.c:fd_read_body() function is called when processing OK responses. When the response is sent chunked in wget before 1.19.2, the chunk parser uses strtol() to read each chunk's length, but doesn't check that the chunk length is a non-negative number. The code then tries to read the chunk in pieces of 8192 bytes by using the MIN() macro, but ends up passing the negative chunk length to retr.c:fd_read(). As fd_read() takes an int argument, the high 32 bits of the chunk length are discarded, leaving fd_read() with a completely attacker controlled length argument. The attacker can corrupt malloc metadata after the allocated buffer.

CVSS Score: 2.9Access Vector:
Exploit Score: Access Complexity:
Impact Score: Authentication:
 Confidentiality:
 Integrity:
 Availability:





Reference:
BID-101590
SECTRACK-1039661
DSA-4008
GLSA-201711-06
http://git.savannah.gnu.org/cgit/wget.git/commit/?id=ba6b44f6745b14dce414761a8e4b35d31b176bba
https://www.viestintavirasto.fi/en/cybersecurity/vulnerabilities/2017/haavoittuvuus-2017-037.html

OVAL    5
oval:org.secpod.oval:def:1502044
oval:org.secpod.oval:def:1600796
oval:org.secpod.oval:def:502187
oval:org.secpod.oval:def:703872
...

© 2013 SecPod Technologies