CVE-2018-16890 Detail

Current Description

libcurl versions from 7.36.0 to before 7.64.0 is vulnerable to a heap buffer out-of-bounds read. The function handling incoming NTLM type-2 messages (`lib/vauth/ntlm.c:ntlm_decode_type2_target`) does not validate incoming data correctly and is subject to an integer overflow vulnerability. Using that overflow, a malicious or broken NTLM server could trick libcurl to accept a bad length + offset combination that would lead to a buffer read out-of-bounds.


View Analysis Description

Severity



CVSS 3.x Severity and Metrics:

NIST CVSS score
NIST: NVD
Base Score:  7.5 HIGH
Vector:  CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Nist CVSS score does not match with CNA score
CNA:  Red Hat, Inc.
Base Score:  5.4 MEDIUM
Vector:  CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:L


NVD Analysts use publicly available information to associate vector strings and CVSS scores. We also display any CVSS information provided within the CVE List from the CNA.

Note: It is possible that the NVD CVSS may not match that of the CNA. The most common reason for this is that publicly available information does not provide sufficient detail or that information simply was not available at the time the CVSS vector string was assigned.

References to Advisories, Solutions, and Tools

By selecting these links, you will be leaving NIST webspace. We have provided these links to other web sites because they may have information that would be of interest to you. No inferences should be drawn on account of other sites being referenced, or not, from this page. There may be other web sites that are more appropriate for your purpose. NIST does not necessarily endorse the views expressed, or concur with the facts presented on these sites. Further, NIST does not endorse any commercial products that may be mentioned on these sites. Please address comments about this page to nvd@nist.gov.

Hyperlink Resource
http://www.securityfocus.com/bid/106947 Third Party Advisory  VDB Entry 
https://access.redhat.com/errata/RHSA-2019:3701 Third Party Advisory 
https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2018-16890 Issue Tracking  Mitigation  Patch  Third Party Advisory 
https://cert-portal.siemens.com/productcert/pdf/ssa-436177.pdf Third Party Advisory 
https://curl.haxx.se/docs/CVE-2018-16890.html Patch  Vendor Advisory 
https://lists.apache.org/thread.html/8338a0f605bdbb3a6098bb76f666a95fc2b2f53f37fa1ecc89f1146f@%3Cdevnull.infra.apache.org%3E Mailing List  Third Party Advisory 
https://security.netapp.com/advisory/ntap-20190315-0001/ Patch  Third Party Advisory 
https://support.f5.com/csp/article/K03314397?utm_source=f5support&utm_medium=RSS Third Party Advisory 
https://usn.ubuntu.com/3882-1/ Third Party Advisory 
https://www.debian.org/security/2019/dsa-4386 Third Party Advisory 
https://www.oracle.com/technetwork/security-advisory/cpuapr2019-5072813.html Patch  Third Party Advisory 
https://www.oracle.com/technetwork/security-advisory/cpujul2019-5072835.html Patch  Third Party Advisory 

Weakness Enumeration

CWE-ID CWE Name Source
CWE-190 Integer Overflow or Wraparound cwe source acceptance level NIST  
CWE-125 Out-of-bounds Read cwe source acceptance level NIST   Reference acceptance level Red Hat, Inc.  

Known Affected Software Configurations Switch to CPE 2.2

CPEs loading, please wait.

Denotes Vulnerable Software
Are we missing a CPE here? Please let us know.

Change History

15 change records found show changes

Quick Info

CVE Dictionary Entry:
CVE-2018-16890
NVD Published Date:
02/06/2019
NVD Last Modified:
09/18/2020
Source:
Red Hat, Inc.