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TI-2016-08272 Aliases CVE-2016-10196GHSA-c3jf-437c-9298

Stack-based buffer overflow in the evutil_parse_sockaddr_port function in evutil.c in…

Priority MEDIUM 41CWE-787Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
None
Attack complexity
Low
Impact type
Denial of service
Confidentiality · integrity · availability
None · None · High
Fix status
Partial Red Hat: 13 fixed, 2 without a fix

Attack profile from CVSS 3.1 · NVD. Fix status from CNA and Red Hat. Impact type from CWE-787 and the CVSS impact.

Summary

Stack-based buffer overflow in the evutil_parse_sockaddr_port function in evutil.c in libevent before 2.1.6-beta allows attackers to cause a denial of service (segmentation fault) via vectors involving a long string in brackets in the ip_as_string argument.

Why it matters now

EPSS 0.05208 92nd percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by NVD
Fix Partial Red Hat: 3 advisoriesRed Hat: 13 fixed, 2 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 · 5

CPEVersionsRoleVendor
cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:*8.0VulnerableDebian
cpe:2.3:a:libevent_project:libevent:*:*:*:*:*:*:*:*up to 2.1.5VulnerableLibevent Project
cpe:2.3:a:mozilla:firefox:*:*:*:*:*:*:*:*before 45.9.0; before 53.0VulnerableMozilla
cpe:2.3:a:mozilla:firefox:52.0:*:*:*:*:*:*:*52.0VulnerableMozilla
cpe:2.3:a:mozilla:thunderbird:*:*:*:*:*:*:*:*before 52.1.0VulnerableMozilla
  • cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:* Versions 8.0 Vulnerable ·Debian
  • cpe:2.3:a:libevent_project:libevent:*:*:*:*:*:*:*:* Versions up to 2.1.5 Vulnerable ·Libevent Project
  • cpe:2.3:a:mozilla:firefox:*:*:*:*:*:*:*:* Versions before 45.9.0; before 53.0 Vulnerable ·Mozilla
  • cpe:2.3:a:mozilla:firefox:52.0:*:*:*:*:*:*:* Versions 52.0 Vulnerable ·Mozilla
  • cpe:2.3:a:mozilla:thunderbird:*:*:*:*:*:*:*:* Versions before 52.1.0 Vulnerable ·Mozilla

Remediation

Red Hat 3 advisories

  • RHSA-2017:1201 Released 2017-05-08 · Red Hat rating Important
    thunderbird security update
    • Red Hat Enterprise Linux Client (v. 7) thunderbird-52.1.0-1.el7_3
    • Red Hat Enterprise Linux Desktop (v. 6) thunderbird-52.1.0-1.el6_9
    • Red Hat Enterprise Linux Server Optional (v. 6) thunderbird-52.1.0-1.el6_9
    • Red Hat Enterprise Linux Server Optional (v. 7) thunderbird-52.1.0-1.el7_3
    • Red Hat Enterprise Linux Workstation (v. 6) thunderbird-52.1.0-1.el6_9
    • Red Hat Enterprise Linux Workstation (v. 7) thunderbird-52.1.0-1.el7_3
  • RHSA-2017:1106 Released 2017-04-21 · Red Hat rating Critical
    firefox security update
    • Red Hat Enterprise Linux Client (v. 7) firefox-52.1.0-2.el7_3
    • Red Hat Enterprise Linux Client Optional (v. 7) firefox-52.1.0-2.el7_3
    • Red Hat Enterprise Linux Server (v. 7) firefox-52.1.0-2.el7_3
    • Red Hat Enterprise Linux Server Optional (v. 7) firefox-52.1.0-2.el7_3, firefox-52.1.0-2.el7_3.ppc
    • Red Hat Enterprise Linux Workstation (v. 7) firefox-52.1.0-2.el7_3
    • Red Hat Enterprise Linux Workstation Optional (v. 7) firefox-52.1.0-2.el7_3
  • RHSA-2017:1104 Released 2017-04-20 · Red Hat rating Critical
    firefox security update
    • Red Hat Enterprise Linux Desktop (v. 6) firefox-52.1.0-2.el6_9
    • Red Hat Enterprise Linux Desktop Optional (v. 6) firefox-52.1.0-2.el6_9
    • Red Hat Enterprise Linux HPC Node Optional (v. 6) firefox-52.1.0-2.el6_9
    • Red Hat Enterprise Linux Server (v. 6) firefox-52.1.0-2.el6_9
    • Red Hat Enterprise Linux Server Optional (v. 6) firefox-52.1.0-2.el6_9, firefox-52.1.0-2.el6_9.ppc
    • Red Hat Enterprise Linux Workstation (v. 6) firefox-52.1.0-2.el6_9
    • Red Hat Enterprise Linux Workstation Optional (v. 6) firefox-52.1.0-2.el6_9

Vendor assessments

Red Hat

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

ProductStatusPlan or fix
Red Hat Enterprise Linux 5AffectedNo fix planned: Will not fix
Red Hat Enterprise Linux 7AffectedNo fix planned: Will not fix
Red Hat Enterprise Linux Client (v. 7)Fixed RHSA-2017:1106, RHSA-2017:1201
Red Hat Enterprise Linux Client Optional (v. 7)Fixed RHSA-2017:1106
Red Hat Enterprise Linux Desktop (v. 6)Fixed RHSA-2017:1104, RHSA-2017:1201
Red Hat Enterprise Linux Desktop Optional (v. 6)Fixed RHSA-2017:1104
Red Hat Enterprise Linux HPC Node Optional (v. 6)Fixed RHSA-2017:1104
Red Hat Enterprise Linux Server (v. 6)Fixed RHSA-2017:1104
Red Hat Enterprise Linux Server (v. 7)Fixed RHSA-2017:1106
Red Hat Enterprise Linux Server Optional (v. 6)Fixed RHSA-2017:1104, RHSA-2017:1201
Red Hat Enterprise Linux Server Optional (v. 7)Fixed RHSA-2017:1106, RHSA-2017:1201
Red Hat Enterprise Linux Workstation (v. 6)Fixed RHSA-2017:1104, RHSA-2017:1201
Red Hat Enterprise Linux Workstation (v. 7)Fixed RHSA-2017:1106, RHSA-2017:1201
Red Hat Enterprise Linux Workstation Optional (v. 6)Fixed RHSA-2017:1104
Red Hat Enterprise Linux Workstation Optional (v. 7)Fixed RHSA-2017:1106
Not affected: 3 products
  • Red Hat Enterprise Linux 5
  • Red Hat Enterprise Linux 6
  • Red Hat Enterprise Linux 7

Timeline

  1. 2026-10-02 Threatist record created from CVE-2016-10196
  2. 2026-10-03 Alias added: GHSA-c3jf-437c-9298

References

Exploit 1

Patch 1

Advisory 13

Sources

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