Vulnerability Name:

CVE-2019-17266 (CCN-168515)

Assigned:2019-10-06
Published:2019-10-06
Updated:2019-11-06
Summary: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 v3 Severity:9.8 Critical (CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H)
8.6 High (Temporal CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:U/RL:U/RC:R)
Exploitability Metrics:Attack Vector (AV): Network
Attack Complexity (AC): Low
Privileges Required (PR): None
User Interaction (UI): None
Scope:Scope (S): Unchanged
Impact Metrics:Confidentiality (C): High
Integrity (I): High
Availibility (A): High
5.3 Medium (CCN CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L)
4.7 Medium (CCN Temporal CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L/E:U/RL:U/RC:R)
Exploitability Metrics:Attack Vector (AV): Network
Attack Complexity (AC): Low
Privileges Required (PR): None
User Interaction (UI): None
Scope:Scope (S): Unchanged
Impact Metrics:Confidentiality (C): None
Integrity (I): None
Availibility (A): Low
CVSS v2 Severity:7.5 High (CVSS v2 Vector: AV:N/AC:L/Au:N/C:P/I:P/A:P)
Exploitability Metrics:Access Vector (AV): Network
Access Complexity (AC): Low
Authentication (Au): None
Impact Metrics:Confidentiality (C): Partial
Integrity (I): Partial
Availibility (A): Partial
5.0 Medium (CCN CVSS v2 Vector: AV:N/AC:L/Au:N/C:N/I:N/A:P)
Exploitability Metrics:Access Vector (AV): Network
Access Complexity (AC): Low
Athentication (Au): None
Impact Metrics:Confidentiality (C): None
Integrity (I): None
Availibility (A): Partial
Vulnerability Type:CWE-125
Vulnerability Consequences:Denial of Service
References:Source: MITRE
Type: CNA
CVE-2019-17266

Source: MISC
Type: Third Party Advisory
https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=941912

Source: XF
Type: UNKNOWN
gnome-libsoup-cve201917266-dos(168515)

Source: MISC
Type: Third Party Advisory
https://github.com/Kirin-say/Vulnerabilities/blob/master/CVE-2019-17266_POC.md

Source: MISC
Type: Third Party Advisory
https://gitlab.gnome.org/GNOME/libsoup/commit/88b7dff4467f4151afae244ea7d1223753cd05ab

Source: MISC
Type: Third Party Advisory
https://gitlab.gnome.org/GNOME/libsoup/commit/f8a54ac85eec2008c85393f331cdd251af8266ad

Source: CCN
Type: GitLab Web site
libsoup

Source: MISC
Type: Broken Link, Issue Tracking, Third Party Advisory
https://gitlab.gnome.org/GNOME/libsoup/issues/173

Source: MISC
Type: Third Party Advisory
https://security-tracker.debian.org/tracker/CVE-2019-17266

Source: UBUNTU
Type: Third Party Advisory
USN-4152-1

Source: MISC
Type: Third Party Advisory
https://www.mail-archive.com/debian-bugs-dist@lists.debian.org/msg1705054.html

Vulnerable Configuration:Configuration 1:
  • cpe:/a:gnome:libsoup:*:*:*:*:*:*:*:* (Version >= 2.65.1 and < 2.66.4)
  • OR cpe:/a:gnome:libsoup:*:*:*:*:*:*:*:* (Version >= 2.67.1 and <= 2.68.1)

    • Configuration 2:
  • cpe:/o:canonical:ubuntu_linux:18.04:*:*:*:lts:*:*:*
  • OR cpe:/o:canonical:ubuntu_linux:19.04:*:*:*:*:*:*:*

    • * Denotes that component is vulnerable
    Oval Definitions
    Definition IDClassTitleLast Modified
    oval:com.ubuntu.disco:def:2019172660000000
    V
    		CVE-2019-17266 on Ubuntu 19.04 (disco) - medium.
    2019-10-06
    oval:com.ubuntu.bionic:def:2019172660000000
    V
    		CVE-2019-17266 on Ubuntu 18.04 LTS (bionic) - medium.
    2019-10-06
    oval:com.ubuntu.xenial:def:2019172660000000
    V
    		CVE-2019-17266 on Ubuntu 16.04 LTS (xenial) - medium.
    2019-10-06
    BACK
    gnome libsoup *
    gnome libsoup *
    canonical ubuntu linux 18.04
    canonical ubuntu linux 19.04