Vulnerability in Apple Mac OS X
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 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.
Published · last modified .
CVSS v2 metric
CVSS v2 base score 5.0 (Medium). Vector: AV:N/AC:L/Au:N/C:N/I:N/A:P. This CVE predates CVSS v3 and has no v3 score from NVD.
EPSS exploit prediction
EPSS: 0.213 (97.5th percentile), scored .
Moderate probability of exploitation in the next 30 days — watch for active exploitation reports. 98th percentile — 97.5% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.214 · newest: 0.213 · change: -0.001
Affected products
- Apple Mac OS X
- PHP — versions 5.4.39, 5.5.0, 5.5.1
- Red Hat Enterprise Linux — versions 6.0, 7.0
- Red Hat Enterprise Linux Desktop — versions 7.0
- Red Hat Enterprise Linux Hpc Node — versions 7.0
- Red Hat Enterprise Linux Hpc Node Eus — versions 7.1
- Red Hat Enterprise Linux Server — versions 7.0
- Red Hat Enterprise Linux Server Eus — versions 7.1
- Red Hat Enterprise Linux Workstation — versions 7.0
Weakness classification (CWE)
Public proof-of-concept exploits
References
- rhn.redhat.com/errata/RHSA-2015-1187.html (vendor-advisory)
- rhn.redhat.com/errata/RHSA-2015-1186.html (vendor-advisory)
- rhn.redhat.com/errata/RHSA-2015-1219.html (vendor-advisory)
- www.oracle.com/technetwork/topics/security/linuxbulletinjan2016-2867209.html
- lists.opensuse.org/opensuse-updates/2015-06/msg00002.html (vendor-advisory)
- php.net/ChangeLog-5.php (Patch)
- www.securityfocus.com/bid/74700 (vdb-entry)
- www.debian.org/security/2015/dsa-3280 (vendor-advisory)
- lists.apple.com/archives/security-announce/2015/Aug/msg00001.html (vendor-advisory)
- www.securitytracker.com/id/1032433 (vdb-entry)
Frequently asked questions
- What is CVE-2015-4021?
- CVE-2015-4021 is a vulnerability in Apple Mac OS X, classified under CWE-189. Published 2015-06-09.
- Is CVE-2015-4021 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.