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CVE-2015-4021
The phar_parse_tarfile function in ext/phar/tar.c in PHP before 5.4.41, 5.5.x before 5.5.25, and 5.6.x before 5.6.9 does not verify that…
Medium5.0EPSS 20.5%
- Published
- Updated
- Reserved
- Assigned by
- mitre
Description
The phar_parse_tarfile function in ext/phar/tar.c in PHP before 5.4.41, 5.5.x before 5.5.25, and 5.6.x before 5.6.9 does not verify that the first character of a filename is different from the \0 character, which allows remote attackers to cause a denial of service (integer underflow and memory corruption) via a crafted entry in a tar archive.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| NVDNVD · Modified | 2.0 | Medium5.0 | AV:N/AC:L/Au:N/C:N/I:N/A:P |
- EPSS (exploitation in 30 days)
- 20.5% · top 2.5% of all CVEs (5 Nov 2026)
Loading the EPSS history…
The list uses the assigner's score when there is one, then CISA's, then NVD's: Medium 5.0.
Weakness
Affected products
n/a
- affected n/a
References (18)
- RHSA-2015:1187 (opens in a new tab)vendor-advisoryx_refsource_REDHATx_transferred
- RHSA-2015:1186 (opens in a new tab)vendor-advisoryx_refsource_REDHATx_transferred
- RHSA-2015:1219 (opens in a new tab)vendor-advisoryx_refsource_REDHATx_transferred
- http://www.oracle.com/technetwork/topics/security/linuxbulletinjan2016-2867209.html (opens in a new tab)x_refsource_CONFIRMx_transferred
- openSUSE-SU-2015:0993 (opens in a new tab)vendor-advisoryx_refsource_SUSEx_transferred
- http://php.net/ChangeLog-5.php (opens in a new tab)x_refsource_CONFIRMx_transferred
- 74700 (opens in a new tab)vdb-entryx_refsource_BIDx_transferred
- DSA-3280 (opens in a new tab)vendor-advisoryx_refsource_DEBIANx_transferred
- APPLE-SA-2015-08-13-2 (opens in a new tab)vendor-advisoryx_refsource_APPLEx_transferred
- 1032433 (opens in a new tab)vdb-entryx_refsource_SECTRACKx_transferred
- https://bugs.php.net/bug.php?id=69453 (opens in a new tab)x_refsource_CONFIRMx_transferred
- RHSA-2015:1135 (opens in a new tab)vendor-advisoryx_refsource_REDHATx_transferred
- https://support.apple.com/kb/HT205031 (opens in a new tab)x_refsource_CONFIRMx_transferred
- FEDORA-2015-8383 (opens in a new tab)vendor-advisoryx_refsource_FEDORAx_transferred
- FEDORA-2015-8281 (opens in a new tab)vendor-advisoryx_refsource_FEDORAx_transferred
- FEDORA-2015-8370 (opens in a new tab)vendor-advisoryx_refsource_FEDORAx_transferred
- GLSA-201606-10 (opens in a new tab)vendor-advisoryx_refsource_GENTOOx_transferred
- RHSA-2015:1218 (opens in a new tab)vendor-advisoryx_refsource_REDHATx_transferred
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisories (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://trackcve.app/cve/CVE-2015-4021)Record last updated .