CVE-2014-4043

CVE-2014-4043 is a high-severity vulnerability in Gnu Glibc with a CVSS 2.0 base score of 7.5. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-94.

Key facts

• Severity: High (CVSS 2.0 base score 7.5)
• EPSS exploit prediction: 4% (89th percentile)
• Actively exploited: Not listed in CISA KEV
• Weakness: CWE-94
• Affected product: Gnu Glibc
• Published: 2014-10-06
• Last modified: 2026-06-17

Description

The posix_spawn_file_actions_addopen function in glibc before 2.20 does not copy its path argument in accordance with the POSIX specification, which allows context-dependent attackers to trigger use-after-free vulnerabilities.

Frequently asked questions

What is CVE-2014-4043?

The posix_spawn_file_actions_addopen function in glibc before 2.20 does not copy its path argument in accordance with the POSIX specification, which allows context-dependent attackers to trigger use-after-free vulnerabilities.

How severe is CVE-2014-4043?

CVE-2014-4043 has a CVSS 2.0 base score of 7.5, rated high severity.

Is CVE-2014-4043 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 4% (89th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2014-4043?

CVE-2014-4043 primarily affects Gnu Glibc. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2014-4043?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

When was CVE-2014-4043 published?

CVE-2014-4043 was published on 2014-10-06 and last updated on 2026-06-17.

References

• http://lists.opensuse.org/opensuse-security-announce/2015-08/msg00012.html
• http://packetstormsecurity.com/files/153278/WAGO-852-Industrial-Managed-Switch-Series-Code-Execution-Hardcoded-Credentials.html
• http://packetstormsecurity.com/files/154361/Cisco-Device-Hardcoded-Credentials-GNU-glibc-BusyBox.html
• http://seclists.org/fulldisclosure/2019/Jun/18
• http://seclists.org/fulldisclosure/2019/Sep/7
• http://www.mandriva.com/security/advisories?name=MDVSA-2014:152
• http://www.securityfocus.com/bid/68006
• https://bugzilla.redhat.com/show_bug.cgi?id=1109263
• https://exchange.xforce.ibmcloud.com/vulnerabilities/93784
• https://seclists.org/bugtraq/2019/Jun/14
• https://seclists.org/bugtraq/2019/Sep/7
• https://security.gentoo.org/glsa/201503-04
• https://sourceware.org/bugzilla/show_bug.cgi?id=17048
• https://sourceware.org/git/gitweb.cgi?p=glibc.git%3Ba=blobdiff%3Bf=ChangeLog%3Bh=3020b9ac232315df362521aeaf85f21cb9926db8%3Bhp=d86e73963dd9fb5e21b1a28326630337226812aa%3Bhb=89e435f3559c53084498e9baad22172b64429362%3Bhpb=c3a2ebe1f7541cc35937621e08c28ff88afd0845
• https://sourceware.org/git/gitweb.cgi?p=glibc.git%3Ba=blobdiff%3Bf=posix/spawn_faction_addopen.c%3Bh=40800b8e6e81341501c0fb8a91009529e2048dec%3Bhp=47f62425b696a4fdd511b2a057746322eb6518db%3Bhb=89e435f3559c53084498e9baad22172b64429362%3Bhpb=c3a2ebe1f7541cc35937621e08c28ff88afd0845
• https://sourceware.org/git/gitweb.cgi?p=glibc.git%3Bh=89e435f3559c53084498e9baad22172b64429362

Affected products (2)

• cpe:2.3:a:gnu:glibc:*:*:*:*:*:*:*:*
• cpe:2.3:o:opensuse:opensuse:13.1:*:*:*:*:*:*:*

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