Vulnerability Details CVE-2019-17455
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.
Exploit prediction scoring system (EPSS) score
EPSS Score 0.046
EPSS Ranking 88.8%
CVSS Severity
CVSS v3 Score 9.8
CVSS v2 Score 7.5
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
Products affected by CVE-2019-17455
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cpe:2.3:a:nongnu:libntlm:-
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cpe:2.3:a:nongnu:libntlm:0.0
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cpe:2.3:a:nongnu:libntlm:0.1
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cpe:2.3:a:nongnu:libntlm:0.2
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cpe:2.3:a:nongnu:libntlm:0.21
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cpe:2.3:a:nongnu:libntlm:0.3.0
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cpe:2.3:a:nongnu:libntlm:0.3.1
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cpe:2.3:a:nongnu:libntlm:0.3.10
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cpe:2.3:a:nongnu:libntlm:0.3.11
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cpe:2.3:a:nongnu:libntlm:0.3.12
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cpe:2.3:a:nongnu:libntlm:0.3.13
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cpe:2.3:a:nongnu:libntlm:0.3.2
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cpe:2.3:a:nongnu:libntlm:0.3.3
-
cpe:2.3:a:nongnu:libntlm:0.3.4
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cpe:2.3:a:nongnu:libntlm:0.3.5
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cpe:2.3:a:nongnu:libntlm:0.3.6
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cpe:2.3:a:nongnu:libntlm:0.3.7
-
cpe:2.3:a:nongnu:libntlm:0.3.8
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cpe:2.3:a:nongnu:libntlm:0.3.9
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cpe:2.3:a:nongnu:libntlm:0.4.0
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cpe:2.3:a:nongnu:libntlm:0.4.1
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cpe:2.3:a:nongnu:libntlm:0.4.2
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cpe:2.3:a:nongnu:libntlm:1.0
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cpe:2.3:a:nongnu:libntlm:1.1
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cpe:2.3:a:nongnu:libntlm:1.2
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cpe:2.3:a:nongnu:libntlm:1.3
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cpe:2.3:a:nongnu:libntlm:1.4
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cpe:2.3:a:nongnu:libntlm:1.5
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cpe:2.3:a:opensuse:backports_sle:15.0
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cpe:2.3:o:canonical:ubuntu_linux:14.04
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cpe:2.3:o:canonical:ubuntu_linux:16.04
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cpe:2.3:o:canonical:ubuntu_linux:18.04
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cpe:2.3:o:canonical:ubuntu_linux:20.04
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cpe:2.3:o:debian:debian_linux:8.0
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cpe:2.3:o:debian:debian_linux:9.0
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cpe:2.3:o:fedoraproject:fedora:32
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cpe:2.3:o:fedoraproject:fedora:33
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cpe:2.3:o:opensuse:leap:15.1