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.
Exploits (1)
References (12)
Core 12
Core References
Third Party Advisory vendor-advisory
x_refsource_debian
https://www.debian.org/security/2019/dsa-4386
Third Party Advisory, VDB Entry vdb-entry
x_refsource_bid
http://www.securityfocus.com/bid/106947
Patch, Vendor Advisory x_refsource_misc
https://curl.haxx.se/docs/CVE-2018-16890.html
Patch, Third Party Advisory x_refsource_confirm
https://security.netapp.com/advisory/ntap-20190315-0001/
Third Party Advisory vendor-advisory
x_refsource_ubuntu
https://usn.ubuntu.com/3882-1/
Issue Tracking, Mitigation, Patch, Third Party Advisory x_refsource_confirm
https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2018-16890
Mailing List mailing-list
x_refsource_mlist
https://lists.apache.org/thread.html/8338a0f605bdbb3a6098bb76f666a95fc2b2f53f37fa1ecc89f1146f%40%3Cdevnull.infra.apache.org%3E
Third Party Advisory x_refsource_confirm
https://cert-portal.siemens.com/productcert/pdf/ssa-436177.pdf
Patch, Third Party Advisory x_refsource_misc
https://www.oracle.com/technetwork/security-advisory/cpuapr2019-5072813.html
Patch, Third Party Advisory x_refsource_misc
https://www.oracle.com/technetwork/security-advisory/cpujul2019-5072835.html
Vendor Advisory x_refsource_confirm
https://support.f5.com/csp/article/K03314397?utm_source=f5support&%3Butm_medium=RSS
Third Party Advisory vendor-advisory
x_refsource_redhat
https://access.redhat.com/errata/RHSA-2019:3701
Scores
CVSS v3
7.5
EPSS
0.0140
EPSS Percentile
80.6%
Attack Vector
NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CISA SSVC
Vulnrichment
Exploitation
none
Automatable
no
Technical Impact
partial
Details
CWE
CWE-190
CWE-125
Status
published
Products (15)
canonical/ubuntu_linux
14.04
canonical/ubuntu_linux
16.04
canonical/ubuntu_linux
18.04
canonical/ubuntu_linux
18.10
debian/debian_linux
9.0
f5/big-ip_access_policy_manager
13.1.0 - 13.1.3
haxx/libcurl
7.36.0 - 7.64.0
netapp/clustered_data_ontap
oracle/communications_operations_monitor
3.4
oracle/communications_operations_monitor
4.0
... and 5 more
Published
Feb 06, 2019
Tracked Since
Feb 18, 2026