Vulnerability 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.
CVSS Score
HIGH
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Haxx | Libcurl | >= 7.36.0, < 7.64.0 |
| Canonical | Ubuntu Linux | 14.04 |
| Debian | Debian Linux | 9.0 |
| Netapp | Clustered Data Ontap | All versions |
| Siemens | Sinema Remote Connect Client | <= 2.0 |
| Oracle | Communications Operations Monitor | 3.4 |
| Oracle | Http Server | 12.2.1.3.0 |
| Oracle | Secure Global Desktop | 5.4 |
| Redhat | Enterprise Linux | 8.0 |
| F5 | Big-Ip Access Policy Manager | >= 13.1.0, <= 13.1.3 |
Related Weaknesses (CWE)
References
- http://www.securityfocus.com/bid/106947Third Party AdvisoryVDB Entry
- https://access.redhat.com/errata/RHSA-2019:3701Third Party Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2018-16890Issue TrackingMitigationPatch
- https://cert-portal.siemens.com/productcert/pdf/ssa-436177.pdfThird Party Advisory
- https://curl.haxx.se/docs/CVE-2018-16890.htmlPatchVendor Advisory
- https://lists.apache.org/thread.html/8338a0f605bdbb3a6098bb76f666a95fc2b2f53f37f
- https://security.netapp.com/advisory/ntap-20190315-0001/PatchThird Party Advisory
- https://support.f5.com/csp/article/K03314397?utm_source=f5support&%3Butm_medi
- https://usn.ubuntu.com/3882-1/Third Party Advisory
- https://www.debian.org/security/2019/dsa-4386Third Party Advisory
- https://www.oracle.com/technetwork/security-advisory/cpuapr2019-5072813.htmlPatchThird Party Advisory
- https://www.oracle.com/technetwork/security-advisory/cpujul2019-5072835.htmlPatchThird Party Advisory
- http://www.securityfocus.com/bid/106947Third Party AdvisoryVDB Entry
- https://access.redhat.com/errata/RHSA-2019:3701Third Party Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2018-16890Issue TrackingMitigationPatch
FAQ
What is CVE-2018-16890?
CVE-2018-16890 is a vulnerability with a CVSS score of 7.5 (HIGH). 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 ...
How severe is CVE-2018-16890?
CVE-2018-16890 has been rated HIGH with a CVSS base score of 7.5/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2018-16890?
Check the references section above for vendor advisories and patch information. Affected products include: Haxx Libcurl, Canonical Ubuntu Linux, Debian Debian Linux, Netapp Clustered Data Ontap, Siemens Sinema Remote Connect Client.