CVE-2019-17455
Critical
Description
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.
SeverityCritical
CVSS9.8
Exploit probability—
Product
Nongnu Libntlm
PublishedOct 10, 2019
First seenOct 10, 2019
How to fix
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| nongnu libntlm | v ≤ 1.5 | — |
| debian debian_linux | 8.0, 9.0 | — |
| canonical ubuntu_linux | 14.04, 16.04, 18.04, 20.04 | — |
| fedoraproject fedora | 32, 33 | — |
| opensuse backports_sle | 15.0 | — |
| opensuse leap | 15.1 | — |
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