What’s Vulnerable › Vulnerabilities

CVE-2014-1532

• Severity: critical (CVSS 9.8 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 4.6% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2014-04-30 · updated 2026-06-17
• Weakness: CWE-416

Description

Use-after-free vulnerability in the nsHostResolver::ConditionallyRefreshRecord function in libxul.so in Mozilla Firefox before 29.0, Firefox ESR 24.x before 24.5, Thunderbird before 24.5, and SeaMonkey before 2.26 allows remote attackers to execute arbitrary code or cause a denial of service (heap memory corruption) via vectors related to host resolution.

Affected products

• Canonical Ubuntu Linux: 12.04, 12.10, 13.10, 14.04
• Debian Linux: 7.0, 8.0
• Fedoraproject Fedora: 19, 20
• Mozilla Firefox: before 29.0; from 24.0 before 24.5 — fixed in 24.5, 29.0
• Mozilla Seamonkey: before 2.26 — fixed in 2.26
• Mozilla Thunderbird: before 24.5 — fixed in 24.5
• Opensuse: 11.4, 12.3, 13.1
• RedHat Enterprise Linux Desktop: 5.0, 6.0
• RedHat Enterprise Linux Eus: 6.5
• RedHat Enterprise Linux Server: 5.0, 6.0
• RedHat Enterprise Linux Server Aus: 6.5
• RedHat Enterprise Linux Server Eus: 6.5
• RedHat Enterprise Linux Server Tus: 6.5
• RedHat Enterprise Linux Workstation: 5.0, 6.0
• SUSE Linux Enterprise: 10-sp4, 11-sp1

How to fix

Upgrade to a fixed version: Mozilla Firefox 24.5, 29.0; Mozilla Seamonkey 2.26; Mozilla Thunderbird 24.5. Check the vendor advisory for mitigations.

References

• http://lists.fedoraproject.org/pipermail/package-announce/2014-May/132332.html
• http://lists.fedoraproject.org/pipermail/package-announce/2014-May/132437.html
• http://lists.opensuse.org/opensuse-security-announce/2014-05/msg00006.html
• http://lists.opensuse.org/opensuse-security-announce/2014-05/msg00015.html
• http://lists.opensuse.org/opensuse-updates/2014-05/msg00010.html
• http://lists.opensuse.org/opensuse-updates/2014-05/msg00013.html
• http://lists.opensuse.org/opensuse-updates/2014-05/msg00033.html
• http://lists.opensuse.org/opensuse-updates/2014-05/msg00040.html
• http://rhn.redhat.com/errata/RHSA-2014-0448.html
• http://rhn.redhat.com/errata/RHSA-2014-0449.html
• http://secunia.com/advisories/59866
• http://www.debian.org/security/2014/dsa-2918

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