Vulnerability CVE-2019-17266
Published: 2019-10-06   Modified: 2019-10-07

Description:
libsoup from versions 2.65.1 until 2.68.1 have a heap-based buffer over-read because soup_ntlm_parse_challenge() in soup-auth-ntlm.c does not properly check an NTLM message's length before proceeding with a memcpy.

Type:

CWE-125

 (Out-of-bounds Read)

CVSS2 => (AV:N/AC:L/Au:N/C:P/I:P/A:P)

CVSS Base Score
Impact Subscore
Exploitability Subscore
7.5/10
6.4/10
10/10
Exploit range
Attack complexity
Authentication
Remote
Low
No required
Confidentiality impact
Integrity impact
Availability impact
Partial
Partial
Partial
Affected software
Gnome -> Libsoup 
Canonical -> Ubuntu linux 

 References:
https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=941912
https://github.com/Kirin-say/Vulnerabilities/blob/master/CVE-2019-17266_POC.md
https://gitlab.gnome.org/GNOME/libsoup/commit/88b7dff4467f4151afae244ea7d1223753cd05ab
https://gitlab.gnome.org/GNOME/libsoup/commit/f8a54ac85eec2008c85393f331cdd251af8266ad
https://gitlab.gnome.org/GNOME/libsoup/issues/173
https://security-tracker.debian.org/tracker/CVE-2019-17266
https://usn.ubuntu.com/4152-1/
https://www.mail-archive.com/debian-bugs-dist@lists.debian.org/msg1705054.html
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