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CVE-2015-2331: Integer overflow in the _zip_cdir_new function in zip_dirent.c in libzip 0.11.2 and earlier, as used in the...

Integer overflow in the _zip_cdir_new function in zip_dirent.c in libzip 0.11.2 and earlier, as used in the ZIP extension in PHP before 5.4.39, 5.5.x before 5.5.23, and 5.6.x before 5.6.7 and other products, allows remote attackers to cause a denial of service (application crash) or possibly execute arbitrary code via a ZIP archive that contains many entries, leading to a heap-based buffer overflow.

UnknownCVSS not scoredNot KEV-listedUpdated
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Glexia's TakeAutomated analysis

Security readout for executives and security teams

This vulnerability affects older libzip and PHP ZIP-extension versions. A malicious ZIP file can crash software that processes it and may allow code execution. Business urgency is highest where public uploads, email attachments, or automated ZIP ingestion reach vulnerable systems. Exposure is likely in legacy systems using vulnerable libzip or PHP ZIP extension versions, especially applications that process untrusted ZIP files. Current exposure cannot be assumed without inventory because advisories also mention downstream vendor packages and other products. Prioritize remediation for internet-facing or automated file-processing systems first. The vulnerability is old, but legacy software creates real risk because impact may include service outages or code execution. If modern supported packages are deployed, urgency drops after verification. Mitigation focus: Upgrade PHP to 5.4.39, 5.5.23, 5.6.7, or later supported releases.; Upgrade libzip beyond 0.11.2 using vendor-supported packages.; Apply relevant Debian, Fedora, openSUSE, Apple, HP, Mandriva, or Oracle advisories where applicable..

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Severity
Unknown
CVSS
Not scored
Known Exploited
No
Published
Official CVE source material

CNA and ADP enrichment extracted from CVE v5

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3Source links

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