Read the docs
TI-2016-06164 Aliases CVE-2016-7167GHSA-679j-c6m7-q7pr

Multiple integer overflows in the (1) curl_escape, (2) curl_easy_escape, (3)…

Priority MEDIUM 56CWE-190Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
None
Attack complexity
Low
Impact type
Code execution
Confidentiality · integrity · availability
High · High · High
Fix status
Partial Red Hat: 14 fixed, 7 without a fix

Attack profile from CVSS 3.0 · NVD. Fix status from CNA and Red Hat. Impact type from CWE-190 and the CVSS impact.

Summary

Multiple integer overflows in the (1) curl_escape, (2) curl_easy_escape, (3) curl_unescape, and (4) curl_easy_unescape functions in libcurl before 7.50.3 allow attackers to have unspecified impact via a string of length 0xffffffff, which triggers a heap-based buffer overflow.

Why it matters now

EPSS 0.11737 96th percentileScored 2026-11-07
Fix Partial Red Hat: 3 advisoriesRed Hat: 14 fixed, 7 without a fix

SSVC decision points

Not available: CISA has not published SSVC decision points for this record.

Affected products

VendorProductAffected versionsFixed inStatusSource
——all versions—No fix listedCNA
  • — Vendor— Affected all versions Fixed in — No fix listed CNA

CPE configurations NVD · 4

CPEVersionsRoleVendor
cpe:2.3:o:fedoraproject:fedora:23:*:*:*:*:*:*:*23VulnerableFedoraproject
cpe:2.3:o:fedoraproject:fedora:24:*:*:*:*:*:*:*24VulnerableFedoraproject
cpe:2.3:o:fedoraproject:fedora:25:*:*:*:*:*:*:*25VulnerableFedoraproject
cpe:2.3:a:haxx:libcurl:*:*:*:*:*:*:*:*up to 7.50.2VulnerableHaxx
  • cpe:2.3:o:fedoraproject:fedora:23:*:*:*:*:*:*:* Versions 23 Vulnerable ·Fedoraproject
  • cpe:2.3:o:fedoraproject:fedora:24:*:*:*:*:*:*:* Versions 24 Vulnerable ·Fedoraproject
  • cpe:2.3:o:fedoraproject:fedora:25:*:*:*:*:*:*:* Versions 25 Vulnerable ·Fedoraproject
  • cpe:2.3:a:haxx:libcurl:*:*:*:*:*:*:*:* Versions up to 7.50.2 Vulnerable ·Haxx

Remediation

Red Hat 3 advisories

  • RHSA-2018:3558 Released 2018-11-13 · Red Hat rating Moderate
    httpd24 security, bug fix, and enhancement update
    • Red Hat Software Collections for Red Hat Enterprise Linux Server (v. 6) httpd24-curl-7.61.1-1.el6, httpd24-httpd-2.4.34-7.el6, httpd24-httpd-devel-2.4.34-7.el6 +11
    • Red Hat Software Collections for Red Hat Enterprise Linux Server (v. 7) httpd24-curl-7.61.1-1.el7, httpd24-httpd-2.4.34-7.el7, httpd24-httpd-devel-2.4.34-7.el7 +12
    • Red Hat Software Collections for Red Hat Enterprise Linux Server EUS (v. 7.4) httpd24-curl-7.61.1-1.el7, httpd24-httpd-2.4.34-7.el7, httpd24-httpd-devel-2.4.34-7.el7 +12
    • Red Hat Software Collections for Red Hat Enterprise Linux Server EUS (v. 7.5) httpd24-curl-7.61.1-1.el7, httpd24-httpd-2.4.34-7.el7, httpd24-httpd-devel-2.4.34-7.el7 +12
    • Red Hat Software Collections for Red Hat Enterprise Linux Server EUS (v. 7.6) httpd24-curl-7.61.1-1.el7, httpd24-httpd-2.4.34-7.el7, httpd24-httpd-devel-2.4.34-7.el7 +12
    • Red Hat Software Collections for Red Hat Enterprise Linux Workstation (v. 6) httpd24-curl-7.61.1-1.el6, httpd24-httpd-2.4.34-7.el6, httpd24-httpd-devel-2.4.34-7.el6 +11
    • Red Hat Software Collections for Red Hat Enterprise Linux Workstation (v. 7) httpd24-curl-7.61.1-1.el7, httpd24-httpd-2.4.34-7.el7, httpd24-httpd-devel-2.4.34-7.el7 +12
  • RHSA-2018:2486 Released 2018-08-16 · Red Hat rating Important
    Red Hat JBoss Core Services Apache HTTP Server 2.4.29 security update
    • Red Hat JBoss Core Services
  • RHSA-2017:2016 Released 2017-08-01 · Red Hat rating Moderate
    curl security, bug fix, and enhancement update
    • Red Hat Enterprise Linux Client (v. 7) curl-7.29.0-42.el7, libcurl-7.29.0-42.el7
    • Red Hat Enterprise Linux Client Optional (v. 7) libcurl-devel-7.29.0-42.el7
    • Red Hat Enterprise Linux ComputeNode (v. 7) curl-7.29.0-42.el7, libcurl-7.29.0-42.el7
    • Red Hat Enterprise Linux ComputeNode Optional (v. 7) libcurl-devel-7.29.0-42.el7
    • Red Hat Enterprise Linux Server (v. 7) curl-7.29.0-42.el7, libcurl-7.29.0-42.el7, libcurl-7.29.0-42.el7.ppc +2
    • Red Hat Enterprise Linux Workstation (v. 7) curl-7.29.0-42.el7, libcurl-7.29.0-42.el7, libcurl-devel-7.29.0-42.el7

Vendor assessments

Red Hat

Red Hat rating: Low. Red Hat's page for this CVE →

ProductStatusPlan or fix
.NET Core 1.0 on Red Hat Enterprise LinuxAffectedNo fix planned: Out of support scope
.NET Core 1.1 on Red Hat Enterprise LinuxAffectedNo fix planned: Out of support scope
.NET Core 2.0 on Red Hat Enterprise LinuxAffectedNo fix planned: Out of support scope
.NET Core 2.1 on Red Hat Enterprise LinuxAffectedNo fix planned: Will not fix
Red Hat Enterprise Linux 5AffectedNo fix planned: Will not fix
Red Hat Enterprise Linux 6AffectedNo fix planned: Will not fix
Red Hat Enterprise Virtualization 3AffectedNo fix planned: Will not fix
Red Hat Enterprise Linux Client (v. 7)Fixed RHSA-2017:2016
Red Hat Enterprise Linux Client Optional (v. 7)Fixed RHSA-2017:2016
Red Hat Enterprise Linux ComputeNode (v. 7)Fixed RHSA-2017:2016
Red Hat Enterprise Linux ComputeNode Optional (v. 7)Fixed RHSA-2017:2016
Red Hat Enterprise Linux Server (v. 7)Fixed RHSA-2017:2016
Red Hat Enterprise Linux Workstation (v. 7)Fixed RHSA-2017:2016
Red Hat JBoss Core ServicesFixed RHSA-2018:2486
Red Hat Software Collections for Red Hat Enterprise Linux Server (v. 6)Fixed RHSA-2018:3558
Red Hat Software Collections for Red Hat Enterprise Linux Server (v. 7)Fixed RHSA-2018:3558
Red Hat Software Collections for Red Hat Enterprise Linux Server EUS (v. 7.4)Fixed RHSA-2018:3558
Red Hat Software Collections for Red Hat Enterprise Linux Server EUS (v. 7.5)Fixed RHSA-2018:3558
Red Hat Software Collections for Red Hat Enterprise Linux Server EUS (v. 7.6)Fixed RHSA-2018:3558
Red Hat Software Collections for Red Hat Enterprise Linux Workstation (v. 6)Fixed RHSA-2018:3558
Red Hat Software Collections for Red Hat Enterprise Linux Workstation (v. 7)Fixed RHSA-2018:3558

Timeline

  1. 2026-10-02 Threatist record created from CVE-2016-7167
  2. 2026-10-03 Alias added: GHSA-679j-c6m7-q7pr

References

Advisory 9

Other 2

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences