CVE-2019-17455

EUVD-2019-7844
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.
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTPrimary
9.8 CRITICAL
NETWORK
LOW
NONE
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Base Score
CVSS 3.x
EPSS Score
Percentile: 91%
Affected Products (NVD)
VendorProductVersion
nongnulibntlm
𝑥
≤ 1.5
debiandebian_linux
8.0
debiandebian_linux
9.0
canonicalubuntu_linux
14.04
canonicalubuntu_linux
16.04
canonicalubuntu_linux
18.04
canonicalubuntu_linux
20.04
opensusebackports_sle
15.0:sp1
opensuseleap
15.1
𝑥
= Vulnerable software versions
Debian logo
Debian Releases
Debian Product
Codename
libntlm
bookworm
1.6-4
fixed
bullseye
1.6-3
fixed
sid
1.8-3
fixed
trixie
1.8-3
fixed
Ubuntu logo
Ubuntu Releases
Ubuntu Product
Codename
libntlm
bionic
Fixed 1.4-8ubuntu0.1
released
disco
ignored
eoan
ignored
focal
Fixed 1.5-2ubuntu0.1
released
groovy
not-affected
hirsute
not-affected
impish
not-affected
jammy
not-affected
trusty
Fixed 1.4-1ubuntu0.1~esm1
released
xenial
Fixed 1.4-7ubuntu0.1~esm1
released
Common Weakness Enumeration
References
http://lists.opensuse.org/opensuse-security-announce/2020-06/msg00029.html
http://lists.opensuse.org/opensuse-security-announce/2020-06/msg00032.html
https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=942145
https://gitlab.com/jas/libntlm/issues/2
https://lists.debian.org/debian-lts-announce/2020/05/msg00010.html
https://lists.debian.org/debian-lts-announce/2021/11/msg00026.html
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/3BVFO3OVJPMSGIXBKNOCVOJZ3UTGZQF5/
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/YZ5YWYNOJ5HMCKAHWLTY4MXZQWJJCBI7/
https://people.canonical.com/~ubuntu-security/cve/2019/CVE-2019-17455.html
https://security-tracker.debian.org/tracker/CVE-2019-17455
http://lists.opensuse.org/opensuse-security-announce/2020-06/msg00029.html
http://lists.opensuse.org/opensuse-security-announce/2020-06/msg00032.html
https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=942145
https://gitlab.com/jas/libntlm/issues/2
https://lists.debian.org/debian-lts-announce/2020/05/msg00010.html
https://lists.debian.org/debian-lts-announce/2021/11/msg00026.html
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/3BVFO3OVJPMSGIXBKNOCVOJZ3UTGZQF5/
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/YZ5YWYNOJ5HMCKAHWLTY4MXZQWJJCBI7/
https://people.canonical.com/~ubuntu-security/cve/2019/CVE-2019-17455.html
https://security-tracker.debian.org/tracker/CVE-2019-17455