CVE-2019-17266 Information

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.

CVSS Vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Reference

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

Attack Complexity

LOW

Privileges Required

NONE

User Interaction Required

NONE

Scope

NONE

Confidentiality Impact

UNCHANGED

Integrity Impact

HIGH

Availability Impact

HIGH

Base Score

HIGH

Base Severity

9.8