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TI-2016-04586 Aliases CVE-2016-5290GHSA-qf56-xjg6-qx59

Memory corruption in Mozilla Thunderbird

Priority MEDIUM 48CWE-119Published · 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
Fixed

Attack profile from CVSS 3.0 · NVD. Fix status from CNA and Red Hat. Impact type from CWE-119 and the CVSS impact.

Summary

Memory safety bugs were reported in Firefox 49 and Firefox ESR 45.4. Some of these bugs showed evidence of memory corruption and we presume that with enough effort that some of these could be exploited to run arbitrary code. This vulnerability affects Thunderbird < 45.5, Firefox ESR < 45.5, and Firefox < 50.

Why it matters now

EPSS 0.03212 88th percentileScored 2026-11-07
Fix Fixed Thunderbird (Mozilla): 45.5Firefox ESR (Mozilla): 45.5+1 more productRed Hat: 2 advisories

SSVC decision points

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

Affected products

VendorProductAffected versionsFixed inStatusSource
MozillaThunderbirdbefore 45.545.5Patch availableCNA
MozillaFirefox ESRbefore 45.545.5Patch availableCNA
MozillaFirefoxbefore 5050Patch availableCNA
  • Thunderbird VendorMozilla Affected before 45.5 Fixed in 45.5 Patch available CNA
  • Firefox ESR VendorMozilla Affected before 45.5 Fixed in 45.5 Patch available CNA
  • Firefox VendorMozilla Affected before 50 Fixed in 50 Patch available CNA

CPE configurations NVD · 3

CPEVersionsRoleVendor
cpe:2.3:a:mozilla:firefox:*:*:*:*:*:*:*:*before 45.5.0; before 50.0VulnerableMozilla
cpe:2.3:a:mozilla:thunderbird:*:*:*:*:*:*:*:*before 45.5.0VulnerableMozilla
cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:*8.0VulnerableDebian
  • cpe:2.3:a:mozilla:firefox:*:*:*:*:*:*:*:* Versions before 45.5.0; before 50.0 Vulnerable ·Mozilla
  • cpe:2.3:a:mozilla:thunderbird:*:*:*:*:*:*:*:* Versions before 45.5.0 Vulnerable ·Mozilla
  • cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:* Versions 8.0 Vulnerable ·Debian

Remediation

  • Fix · CNA Thunderbird (Mozilla) Fixed in 45.5
  • Fix · CNA Firefox ESR (Mozilla) Fixed in 45.5
  • Fix · CNA Firefox (Mozilla) Fixed in 50

Red Hat 2 advisories

  • RHSA-2016:2825 Released 2016-11-29 · Red Hat rating Important
    thunderbird security update
    • Red Hat Enterprise Linux Client (v. 7) thunderbird-45.5.0-1.el7_3
    • Red Hat Enterprise Linux Desktop (v. 5 client) thunderbird-45.5.0-1.el5_11, thunderbird-45.5.0-1.el5_11.i386
    • Red Hat Enterprise Linux Desktop (v. 6) thunderbird-45.5.0-1.el6_8
    • Red Hat Enterprise Linux Optional Productivity Applications (v. 5 server) thunderbird-45.5.0-1.el5_11, thunderbird-45.5.0-1.el5_11.i386
    • Red Hat Enterprise Linux Server Optional (v. 6) thunderbird-45.5.0-1.el6_8
    • Red Hat Enterprise Linux Server Optional (v. 7) thunderbird-45.5.0-1.el7_3
    • Red Hat Enterprise Linux Workstation (v. 6) thunderbird-45.5.0-1.el6_8
    • Red Hat Enterprise Linux Workstation (v. 7) thunderbird-45.5.0-1.el7_3
  • RHSA-2016:2780 Released 2016-11-16 · Red Hat rating Critical
    firefox security update
    • Red Hat Enterprise Linux (v. 5 server) firefox-45.5.0-1.el5_11, firefox-45.5.0-1.el5_11.i386
    • Red Hat Enterprise Linux Client (v. 7) firefox-45.5.0-1.el7_3
    • Red Hat Enterprise Linux Client Optional (v. 7) firefox-45.5.0-1.el7_3
    • Red Hat Enterprise Linux Desktop (v. 5 client) firefox-45.5.0-1.el5_11, firefox-45.5.0-1.el5_11.i386
    • Red Hat Enterprise Linux Desktop (v. 6) firefox-45.5.0-1.el6_8
    • Red Hat Enterprise Linux Desktop Optional (v. 6) firefox-45.5.0-1.el6_8
    • Red Hat Enterprise Linux HPC Node Optional (v. 6) firefox-45.5.0-1.el6_8
    • Red Hat Enterprise Linux Server (v. 6) firefox-45.5.0-1.el6_8
    • Red Hat Enterprise Linux Server (v. 7) firefox-45.5.0-1.el7_3
    • Red Hat Enterprise Linux Server Optional (v. 6) firefox-45.5.0-1.el6_8, firefox-45.5.0-1.el6_8.ppc
    • Red Hat Enterprise Linux Server Optional (v. 7) firefox-45.5.0-1.el7_3, firefox-45.5.0-1.el7_3.ppc
    • Red Hat Enterprise Linux Workstation (v. 6) firefox-45.5.0-1.el6_8
    • Red Hat Enterprise Linux Workstation (v. 7) firefox-45.5.0-1.el7_3
    • Red Hat Enterprise Linux Workstation Optional (v. 6) firefox-45.5.0-1.el6_8
    • Red Hat Enterprise Linux Workstation Optional (v. 7) firefox-45.5.0-1.el7_3

Fixed in the same release

Records fixed by the same vendor advisory or release, as the CNA lists them.

  • Advisory ·

    Mozilla Firefox, Firefox ESR, Thunderbird — DSA-3730

    7 records Highest priority Priority CRITICAL 1 CRITICAL, 3 MEDIUM, 3 LOW

    Other records, highest priority first

    • TI-2016-07433 Use after free in Mozilla FirefoxPriority CRITICAL 90
    • TI-2016-04593 Integer overflow in Mozilla ThunderbirdPriority MEDIUM 48
    • TI-2016-07420 Memory corruption in Mozilla ThunderbirdPriority MEDIUM 47
    Show all 7 records → Advisory →
  • Advisory ·

    Mozilla Firefox, Firefox ESR, Thunderbird — RHSA-2016:2780

    6 records Highest priority Priority MEDIUM 3 MEDIUM, 3 LOW

    Other records, highest priority first

    • TI-2016-04593 Integer overflow in Mozilla ThunderbirdPriority MEDIUM 48
    • TI-2016-07420 Memory corruption in Mozilla ThunderbirdPriority MEDIUM 47
    • TI-2016-04592 Memory corruption in Mozilla ThunderbirdPriority LOW 39
    Show all 6 records → Advisory →

Vendor assessments

Red Hat

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

ProductStatusPlan or fix
Red Hat Enterprise Linux (v. 5 server)Fixed RHSA-2016:2780
Red Hat Enterprise Linux Client (v. 7)Fixed RHSA-2016:2780, RHSA-2016:2825
Red Hat Enterprise Linux Client Optional (v. 7)Fixed RHSA-2016:2780
Red Hat Enterprise Linux Desktop (v. 5 client)Fixed RHSA-2016:2780, RHSA-2016:2825
Red Hat Enterprise Linux Desktop (v. 6)Fixed RHSA-2016:2780, RHSA-2016:2825
Red Hat Enterprise Linux Desktop Optional (v. 6)Fixed RHSA-2016:2780
Red Hat Enterprise Linux HPC Node Optional (v. 6)Fixed RHSA-2016:2780
Red Hat Enterprise Linux Optional Productivity Applications (v. 5 server)Fixed RHSA-2016:2825
Red Hat Enterprise Linux Server (v. 6)Fixed RHSA-2016:2780
Red Hat Enterprise Linux Server (v. 7)Fixed RHSA-2016:2780
Red Hat Enterprise Linux Server Optional (v. 6)Fixed RHSA-2016:2780, RHSA-2016:2825
Red Hat Enterprise Linux Server Optional (v. 7)Fixed RHSA-2016:2780, RHSA-2016:2825
Red Hat Enterprise Linux Workstation (v. 6)Fixed RHSA-2016:2780, RHSA-2016:2825
Red Hat Enterprise Linux Workstation (v. 7)Fixed RHSA-2016:2780, RHSA-2016:2825
Red Hat Enterprise Linux Workstation Optional (v. 6)Fixed RHSA-2016:2780
Red Hat Enterprise Linux Workstation Optional (v. 7)Fixed RHSA-2016:2780

Timeline

  1. 2026-10-02 Threatist record created from CVE-2016-5290
  2. 2026-10-03 Alias added: GHSA-qf56-xjg6-qx59

References

Advisory 8

  • TI-2024-08981 Use after free in Mozilla Firefox KEVCVSS 3.1CRITICAL 9.8
  • TI-2022-09832 Use after free in Mozilla Firefox KEVCVSS 3.1CRITICAL 9.6
  • TI-2019-08769 Improper input validation in Mozilla Firefox ESR KEVCVSS 3.1CRITICAL 10.0
  • TI-2010-03577 Mozilla Firefox 3.5.x through 3.5.14 and 3.6.x through 3.6.11, Thunderbird 3.1.6 before… KEVCVSS 3.1CRITICAL 9.8
  • TI-2023-04799 Out-of-bounds write in Google Chrome KEVCVSS 3.1HIGH 8.8
  • TI-2023-04477 Out-of-bounds write in Google Chrome KEVCVSS 3.1HIGH 8.8
See all 3444 →

Sources

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