CVE-2017-8816

CRITICAL

curl and libcurl < 7.57.0 - Denial of Service via NTLM Authentication Integer Overflow

Title source: llm
STIX 2.1

Description

The NTLM authentication feature in curl and libcurl before 7.57.0 on 32-bit platforms allows attackers to cause a denial of service (integer overflow and resultant buffer overflow, and application crash) or possibly have unspecified other impact via vectors involving long user and password fields.

References (8)

Core 8
Core References
Third Party Advisory x_refsource_confirm
http://security.cucumberlinux.com/security/details.php?id=161
Third Party Advisory vendor-advisory x_refsource_gentoo
https://security.gentoo.org/glsa/201712-04
Vendor Advisory vendor-advisory x_refsource_redhat
https://access.redhat.com/errata/RHSA-2018:3558
Mitigation, Vendor Advisory x_refsource_confirm
https://curl.haxx.se/docs/adv_2017-12e7.html
Third Party Advisory, VDB Entry vdb-entry x_refsource_bid
http://www.securityfocus.com/bid/101998
Third Party Advisory, VDB Entry vdb-entry x_refsource_sectrack
http://www.securitytracker.com/id/1039896
Third Party Advisory vendor-advisory x_refsource_debian
https://www.debian.org/security/2017/dsa-4051
Third Party Advisory, VDB Entry vdb-entry x_refsource_sectrack
http://www.securitytracker.com/id/1040608

Scores

CVSS v3 9.8
EPSS 0.0045
EPSS Percentile 64.0%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

CISA SSVC

Vulnrichment
Exploitation none
Automatable yes
Technical Impact total

Details

CWE
CWE-190
Status published
Products (6)
None/curl and libcurl before 7.57.0 curl and libcurl before 7.57.0
debian/debian_linux 8.0
debian/debian_linux 9.0
haxx/curl 7.36.0 - 7.56.1
haxx/libcurl 7.36.0 - 7.56.1
n/a/curl and libcurl before 7.57.0 curl and libcurl before 7.57.0
Published Nov 29, 2017
Tracked Since Feb 18, 2026