Out-of-bounds Read Affecting curl package, versions <7.58.0-2ubuntu3.6


Severity

Recommended
medium

Based on Ubuntu security rating.

Threat Intelligence

EPSS
3.37% (92nd percentile)

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  • Snyk IDSNYK-UBUNTU1804-CURL-336322
  • published6 Feb 2019
  • disclosed6 Feb 2019

Introduced: 6 Feb 2019

CVE-2018-16890  (opens in a new tab)
CWE-125  (opens in a new tab)
CWE-190  (opens in a new tab)

How to fix?

Upgrade Ubuntu:18.04 curl to version 7.58.0-2ubuntu3.6 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream curl package and not the curl package as distributed by Ubuntu. See How to fix? for Ubuntu:18.04 relevant fixed versions and status.

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 Scores

version 3.1