What is the CVSS score of CVE-2015-2331?

CVE-2015-2331 has a CVSS 2.0 base score of 7.5 (High). CVSS vector: AV:N/AC:L/Au:N/C:P/I:P/A:P. EPSS exploitation probability: 42.7%.

Is there a public PoC exploit available for CVE-2015-2331?

Yes, a public proof-of-concept exploit is available for CVE-2015-2331. Prioritise patching immediately. EPSS: 42.7%.

PHP CVE-2015-2331

HIGH

Numeric Errors (CWE-189)

2015-03-30 cve@mitre.org

Denial Of Service RCE PHP Buffer Overflow Libzip Debian Linux Fedora Opensuse

7.5

CVSS 2.0 · NVD

Severity by source

NVD PRIMARY

7.5 HIGH

AV:N/AC:L/Au:N/C:P/I:P/A:P

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

AV:N/AC:L/Au:N/C:P/I:P/A:P

Attack Vector

Network

Attack Complexity

Low

Confidentiality

Integrity

Availability

Lifecycle Timeline

CVE Published

Mar 30, 2015 - 10:59 cve.org

HIGH 7.5

DescriptionCVE.org

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.

AnalysisAI

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. Rated high severity (CVSS 7.5), this vulnerability is remotely exploitable, low attack complexity. Public exploit code available and EPSS exploitation probability 42.7%.

Technical ContextAI

This vulnerability is classified under CWE-189. 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. Affected products include: Nih Libzip, Php, Debian Debian Linux, Fedoraproject Fedora, Opensuse. Version information: before 5.4.39.

RemediationAI

No vendor patch is available at time of analysis. Monitor vendor advisories for updates. Apply vendor patches when available. Implement network segmentation and monitoring as interim mitigations.