SB2019100725 - Information disclosure in libsoup
Published: October 7, 2019 Updated: June 25, 2020
Security Bulletin ID
SB2019100725
Severity
Medium
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Remote access
Highest impact
Information disclosure
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 security vulnerability.
1) Out-of-bounds read (CVE-ID: CVE-2019-17266)
The vulnerability allows a remote attacker to gain access to potentially sensitive information.
The vulnerability exists due to a boundary condition when processing NTLM messages in soup_ntlm_parse_challenge() function in soup-auth-ntlm.c. A remote attacker can send a specially crafted NTLM message to the application, trigger a heap-based buffer over-read and read sensitive data from system memory.
Remediation
Install update from vendor's website.
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