CVE-2019-3822
curl: NTLMv2 type-3 header stack buffer overflow
Severity
ModerateRed Hat Product Security
CVSS 3.0
Review impact separately from score.
Published · February 6, 2019
Updated · September 21, 2026
Description
A stack-based buffer overflow was found in the way curl handled NTLMv2 type-3 headers. When connecting to a remote malicious server which uses NTLM authentication, the flaw could cause curl to crash.
Statement
The versions of curl package shipped with Red Hat Enterprise Linux 5, 6, and 7 do not support NTLMv2 type-3 headers, hence they are not affected by this flaw.
CVSS score applicability
The CVSS score(s) listed for this vulnerability do not reflect the associated product's status, and are included for informational purposes to better understand the severity of this vulnerability.
Mitigation
Turn off NTLM authentication.
CVSS / CWE
CVSS 3.0 · 5.3CVSS:3.0/AV:N/AC:H/PR:N/UI:R/S:U/C:N/I:N/A:H
CWE-121 · Stack-based Buffer Overflow