Vulnerability Details : CVE-2018-16890
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.
Vulnerability category: Overflow
Products affected by CVE-2018-16890
- cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*
- cpe:2.3:o:redhat:enterprise_linux:8.0:*:*:*:*:*:*:*
- cpe:2.3:a:oracle:http_server:12.2.1.3.0:*:*:*:*:*:*:*
- cpe:2.3:a:oracle:secure_global_desktop:5.4:*:*:*:*:*:*:*
- cpe:2.3:a:oracle:communications_operations_monitor:3.4:*:*:*:*:*:*:*
- cpe:2.3:a:oracle:communications_operations_monitor:4.0:*:*:*:*:*:*:*
- cpe:2.3:a:siemens:sinema_remote_connect_client:*:*:*:*:*:*:*:*
- F5 » Big-ip Access Policy ManagerVersions from including (>=) 13.1.0 and up to, including, (<=) 13.1.3cpe:2.3:a:f5:big-ip_access_policy_manager:*:*:*:*:*:*:*:*
- F5 » Big-ip Access Policy ManagerVersions from including (>=) 15.0.0 and up to, including, (<=) 15.0.1cpe:2.3:a:f5:big-ip_access_policy_manager:*:*:*:*:*:*:*:*
- F5 » Big-ip Access Policy ManagerVersions from including (>=) 14.0.0 and up to, including, (<=) 14.1.2cpe:2.3:a:f5:big-ip_access_policy_manager:*:*:*:*:*:*:*:*
- cpe:2.3:o:canonical:ubuntu_linux:14.04:*:*:*:lts:*:*:*
- cpe:2.3:o:canonical:ubuntu_linux:16.04:*:*:*:lts:*:*:*
- cpe:2.3:o:canonical:ubuntu_linux:18.04:*:*:*:lts:*:*:*
- cpe:2.3:o:canonical:ubuntu_linux:18.10:*:*:*:*:*:*:*
- cpe:2.3:o:netapp:clustered_data_ontap:*:*:*:*:*:*:*:*
- cpe:2.3:a:haxx:libcurl:*:*:*:*:*:*:*:*
Exploit prediction scoring system (EPSS) score for CVE-2018-16890
3.37%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 91 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2018-16890
| Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
|---|---|---|---|---|---|---|
|
5.0
|
MEDIUM | AV:N/AC:L/Au:N/C:N/I:N/A:P |
10.0
|
2.9
|
NIST | |
|
5.4
|
MEDIUM | CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:L |
2.8
|
2.5
|
Red Hat, Inc. | |
|
7.5
|
HIGH | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |
3.9
|
3.6
|
NIST |
CWE ids for CVE-2018-16890
-
The product reads data past the end, or before the beginning, of the intended buffer.Assigned by:
- nvd@nist.gov (Primary)
- secalert@redhat.com (Secondary)
-
The product performs a calculation that can produce an integer overflow or wraparound when the logic assumes that the resulting value will always be larger than the original value. This occurs when an integer value is incremented to a value that is too large to store in the associated representation. When this occurs, the value may become a very small or negative number.Assigned by: nvd@nist.gov (Primary)
References for CVE-2018-16890
-
https://support.f5.com/csp/article/K03314397?utm_source=f5support&utm_medium=RSS
Third Party Advisory
-
https://lists.apache.org/thread.html/8338a0f605bdbb3a6098bb76f666a95fc2b2f53f37fa1ecc89f1146f@%3Cdevnull.infra.apache.org%3E
Pony Mail!Mailing List;Third Party Advisory
-
https://usn.ubuntu.com/3882-1/
USN-3882-1: curl vulnerabilities | Ubuntu security noticesThird Party Advisory
-
http://www.securityfocus.com/bid/106947
cURL/libcURL CVE-2018-16890 Heap Buffer Overflow VulnerabilityThird Party Advisory;VDB Entry
-
https://www.oracle.com/technetwork/security-advisory/cpujul2019-5072835.html
Oracle Critical Patch Update - July 2019Patch;Third Party Advisory
-
https://access.redhat.com/errata/RHSA-2019:3701
RHSA-2019:3701 - Security Advisory - Red Hat Customer PortalThird Party Advisory
-
https://security.netapp.com/advisory/ntap-20190315-0001/
February 2019 curl/libcurl Vulnerabilities in NetApp Products | NetApp Product SecurityPatch;Third Party Advisory
-
https://www.debian.org/security/2019/dsa-4386
Debian -- Security Information -- DSA-4386-1 curlThird Party Advisory
-
https://curl.haxx.se/docs/CVE-2018-16890.html
curl - NTLM type-2 out-of-bounds buffer read - CVE-2018-16890Patch;Vendor Advisory
-
https://www.oracle.com/technetwork/security-advisory/cpuapr2019-5072813.html
Oracle Critical Patch Update - April 2019Patch;Third Party Advisory
-
https://cert-portal.siemens.com/productcert/pdf/ssa-436177.pdf
Third Party Advisory
-
https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2018-16890
1670252 – (CVE-2018-16890) CVE-2018-16890 curl: NTLM type-2 heap out-of-bounds buffer readIssue Tracking;Mitigation;Patch;Third Party Advisory
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