Vulnerability Name:

CVE-2019-17455 (CCN-169474)

Assigned:2019-10-10
Published:2019-10-10
Updated:2021-11-30
Summary:Libntlm through 1.5 relies on a fixed buffer size for tSmbNtlmAuthRequest, tSmbNtlmAuthChallenge, and tSmbNtlmAuthResponse read and write operations, as demonstrated by a stack-based buffer over-read in buildSmbNtlmAuthRequest in smbutil.c for a crafted NTLM request.
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)
8.9 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:P/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
9.8 Critical (CCN CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H)
8.9 High (CCN 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:P/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
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
10.0 High (CCN CVSS v2 Vector: AV:N/AC:L/Au:N/C:C/I:C/A:C)
Exploitability Metrics:Access Vector (AV): Network
Access Complexity (AC): Low
Athentication (Au): None
Impact Metrics:Confidentiality (C): Complete
Integrity (I): Complete
Availibility (A): Complete
Vulnerability Type:CWE-125
Vulnerability Consequences:Gain Access
References:Source: MITRE
Type: CNA
CVE-2019-17455

Source: SUSE
Type: Mailing List, Third Party Advisory
openSUSE-SU-2020:0816

Source: SUSE
Type: Mailing List, Third Party Advisory
openSUSE-SU-2020:0806

Source: CCN
Type: libntlm GIT Repository
eval in colors.py leads to remote code execution

Source: CCN
Type: Debian Bug report logs - #942145
libntlm: CVE-2019-17455

Source: MISC
Type: Exploit, Issue Tracking, Mailing List, Third Party Advisory
https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=942145

Source: XF
Type: UNKNOWN
libntlm-cve201917455-bo(169474)

Source: MISC
Type: Exploit, Third Party Advisory
https://gitlab.com/jas/libntlm/issues/2

Source: MLIST
Type: Mailing List, Third Party Advisory
[debian-lts-announce] 20200510 [SECURITY] [DLA 2207-1] libntlm security update

Source: MLIST
Type: Mailing List, Third Party Advisory
[debian-lts-announce] 20211128 [SECURITY] [DLA 2831-1] libntlm security update

Source: FEDORA
Type: Mailing List, Third Party Advisory
FEDORA-2020-8794383d6f

Source: FEDORA
Type: Mailing List, Third Party Advisory
FEDORA-2020-1f643c272c

Source: CONFIRM
Type: Third Party Advisory
https://people.canonical.com/~ubuntu-security/cve/2019/CVE-2019-17455.html

Source: CONFIRM
Type: Third Party Advisory
https://security-tracker.debian.org/tracker/CVE-2019-17455

Source: CCN
Type: Libntlm Web site
Libntlm

Vulnerable Configuration:Configuration 1:
  • cpe:/a:nongnu:libntlm:*:*:*:*:*:*:*:* (Version <= 1.5)

    • Configuration 2:
  • cpe:/o:debian:debian_linux:8.0:*:*:*:*:*:*:*
  • OR cpe:/o:debian:debian_linux:9.0:*:*:*:*:*:*:*

    • Configuration 3:
  • cpe:/o:canonical:ubuntu_linux:14.04:*:*:*:esm:*:*:*
  • OR cpe:/o:canonical:ubuntu_linux:16.04:*:*:*:lts:*:*:*
  • OR cpe:/o:canonical:ubuntu_linux:18.04:*:*:*:lts:*:*:*
  • OR cpe:/o:canonical:ubuntu_linux:20.04:*:*:*:lts:*:*:*

    • Configuration 4:
  • cpe:/o:fedoraproject:fedora:32:*:*:*:*:*:*:*
  • OR cpe:/o:fedoraproject:fedora:33:*:*:*:*:*:*:*

    • Configuration 5:
  • cpe:/a:opensuse:backports_sle:15.0:sp1:*:*:*:*:*:*
  • OR cpe:/o:opensuse:leap:15.1:*:*:*:*:*:*:*

    • * Denotes that component is vulnerable
    Oval Definitions
    Definition IDClassTitleLast Modified
    oval:org.opensuse.security:def:93617
    P
    		 (Important)
    2022-07-06
    oval:org.opensuse.security:def:201917455
    V
    		CVE-2019-17455
    2022-06-30
    oval:org.opensuse.security:def:112728
    P
    		libntlm-devel-1.6-1.8 on GA media (Moderate)
    2022-01-17
    oval:org.opensuse.security:def:106200
    P
    		libntlm-devel-1.6-1.8 on GA media (Moderate)
    2021-10-01
    oval:org.opensuse.security:def:64578
    P
    		Security update for hivex (Moderate)
    2021-09-23
    oval:org.opensuse.security:def:100330
    P
    		 (Critical)
    2021-09-20
    oval:org.opensuse.security:def:63133
    P
    		terraform-provider-helm-1.3.2-6.3.1 on GA media (Moderate)
    2021-08-10
    oval:org.opensuse.security:def:63426
    P
    		libOSMesa8-32bit-19.3.4-45.23 on GA media (Moderate)
    2021-08-10
    oval:org.opensuse.security:def:64738
    P
    		Security update for git (Moderate)
    2021-07-29
    oval:org.opensuse.security:def:64680
    P
    		Security update for ceph (Important)
    2021-05-04
    oval:org.opensuse.security:def:64471
    P
    		Security update for xorg-x11-server (Important)
    2021-04-13
    oval:org.opensuse.security:def:64470
    P
    		Security update for the Linux Kernel (Moderate)
    2021-01-14
    oval:org.opensuse.security:def:62955
    P
    		guile-2.0.14-5.3.1 on GA media (Moderate)
    2020-12-03
    oval:org.opensuse.security:def:62923
    P
    		perl-doc-5.26.1-7.6.1 on GA media (Moderate)
    2020-12-03
    oval:org.opensuse.security:def:62927
    P
    		systemtap-3.2-7.6.1 on GA media (Moderate)
    2020-12-03
    oval:org.opensuse.security:def:62930
    P
    		FastCGI-2.4.0-2.23 on GA media (Moderate)
    2020-12-03
    oval:org.opensuse.security:def:63629
    P
    		libopencv3_3-3.3.1-6.6.1 on GA media (Moderate)
    2020-12-03
    oval:org.opensuse.security:def:74925
    P
    		Security update for libntlm (Moderate)
    2020-12-01
    oval:org.opensuse.security:def:63776
    P
    		Security update for qemu (Important)
    2020-12-01
    oval:org.opensuse.security:def:64850
    P
    		Security update for bzip2 (Important)
    2020-12-01
    oval:org.opensuse.security:def:64005
    P
    		Security update for python-aws-sam-translator, python-boto3, python-botocore, python-cfn-lint, python-jsonschema, python-nose2, python-parameterized, python-pathlib2, python-pytest-cov, python-requests, python-s3transfer (Moderate)
    2020-12-01
    oval:org.opensuse.security:def:74792
    P
    		Security update for haproxy (Important)
    2020-12-01
    oval:org.opensuse.security:def:64334
    P
    		libipa_hbac-devel on GA media (Moderate)
    2020-12-01
    oval:org.opensuse.security:def:110587
    P
    		Security update for libntlm (Moderate)
    2020-06-13
    oval:com.ubuntu.disco:def:2019174550000000
    V
    		CVE-2019-17455 on Ubuntu 19.04 (disco) - medium.
    2019-10-10
    oval:com.ubuntu.bionic:def:2019174550000000
    V
    		CVE-2019-17455 on Ubuntu 18.04 LTS (bionic) - medium.
    2019-10-10
    oval:com.ubuntu.xenial:def:2019174550000000
    V
    		CVE-2019-17455 on Ubuntu 16.04 LTS (xenial) - medium.
    2019-10-10
    BACK
    nongnu libntlm *
    debian debian linux 8.0
    debian debian linux 9.0
    canonical ubuntu linux 14.04
    canonical ubuntu linux 16.04
    canonical ubuntu linux 18.04
    canonical ubuntu linux 20.04
    fedoraproject fedora 32
    fedoraproject fedora 33
    opensuse backports sle 15.0 sp1
    opensuse leap 15.1