CVE-2019-17266

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.

• CWE-125

• https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=941912Third Party Advisory
• https://github.com/Kirin-say/Vulnerabilities/blob/master/CVE-2019-17266_POC.mdThird Party Advisory
• https://gitlab.gnome.org/GNOME/libsoup/commit/88b7dff4467f4151afae244ea7d1223753cd05abThird Party Advisory
• https://gitlab.gnome.org/GNOME/libsoup/commit/f8a54ac85eec2008c85393f331cdd251af8266adThird Party Advisory
• https://gitlab.gnome.org/GNOME/libsoup/issues/173Broken Link, Issue Tracking, Third Party Advisory
• https://security-tracker.debian.org/tracker/CVE-2019-17266Third Party Advisory
• https://usn.ubuntu.com/4152-1/Third Party Advisory
• https://www.mail-archive.com/debian-bugs-dist%40lists.debian.org/msg1705054.html
• https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=941912Third Party Advisory
• https://github.com/Kirin-say/Vulnerabilities/blob/master/CVE-2019-17266_POC.mdThird Party Advisory
• https://gitlab.gnome.org/GNOME/libsoup/commit/88b7dff4467f4151afae244ea7d1223753cd05abThird Party Advisory
• https://gitlab.gnome.org/GNOME/libsoup/commit/f8a54ac85eec2008c85393f331cdd251af8266adThird Party Advisory
• https://gitlab.gnome.org/GNOME/libsoup/issues/173Broken Link, Issue Tracking, Third Party Advisory
• https://security-tracker.debian.org/tracker/CVE-2019-17266Third Party Advisory
• https://usn.ubuntu.com/4152-1/Third Party Advisory
• https://www.mail-archive.com/debian-bugs-dist%40lists.debian.org/msg1705054.html

Published

Oct 6, 2019

Last Modified

Jun 17, 2026

Status

Modified

• How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
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