First published: Tue Jun 09 2015(Updated: )
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.
Credit: cve@mitre.org
Affected Software | Affected Version | How to fix |
---|---|---|
redhat enterprise Linux desktop | =7.0 | |
Red Hat Enterprise Linux HPC Node | =7.0 | |
Red Hat Enterprise Linux HPC Node | =7.1 | |
redhat enterprise Linux server | =7.0 | |
redhat enterprise Linux server eus | =7.1 | |
redhat enterprise Linux workstation | =7.0 | |
macOS Yosemite | <=10.10.4 | |
Red Hat Enterprise Linux | =6.0 | |
Red Hat Enterprise Linux | =7.0 | |
PHP | <=5.4.40 | |
PHP | =5.4.39 | |
PHP | =5.5.0 | |
PHP | =5.5.0-alpha1 | |
PHP | =5.5.0-alpha2 | |
PHP | =5.5.0-alpha3 | |
PHP | =5.5.0-alpha4 | |
PHP | =5.5.0-alpha5 | |
PHP | =5.5.0-alpha6 | |
PHP | =5.5.0-beta1 | |
PHP | =5.5.0-beta2 | |
PHP | =5.5.0-beta3 | |
PHP | =5.5.0-beta4 | |
PHP | =5.5.0-rc1 | |
PHP | =5.5.0-rc2 | |
PHP | =5.5.1 | |
PHP | =5.5.2 | |
PHP | =5.5.3 | |
PHP | =5.5.4 | |
PHP | =5.5.5 | |
PHP | =5.5.6 | |
PHP | =5.5.7 | |
PHP | =5.5.8 | |
PHP | =5.5.9 | |
PHP | =5.5.10 | |
PHP | =5.5.11 | |
PHP | =5.5.12 | |
PHP | =5.5.13 | |
PHP | =5.5.14 | |
PHP | =5.5.18 | |
PHP | =5.5.19 | |
PHP | =5.5.20 | |
PHP | =5.5.21 | |
PHP | =5.5.22 | |
PHP | =5.5.23 | |
PHP | =5.5.24 | |
PHP | =5.6.0-alpha1 | |
PHP | =5.6.0-alpha2 | |
PHP | =5.6.0-alpha3 | |
PHP | =5.6.0-alpha4 | |
PHP | =5.6.0-alpha5 | |
PHP | =5.6.0-beta1 | |
PHP | =5.6.0-beta2 | |
PHP | =5.6.0-beta3 | |
PHP | =5.6.0-beta4 | |
PHP | =5.6.2 | |
PHP | =5.6.3 | |
PHP | =5.6.4 | |
PHP | =5.6.5 | |
PHP | =5.6.6 | |
PHP | =5.6.7 | |
PHP | =5.6.8 |
Sign up to SecAlerts for real-time vulnerability data matched to your software, aggregated from hundreds of sources.
CVE-2015-4021 has been classified as a moderate severity vulnerability due to its potential to cause denial of service.
To fix CVE-2015-4021, update PHP to version 5.4.41, 5.5.25, or 5.6.9 or later.
CVE-2015-4021 affects PHP versions prior to 5.4.41, 5.5.x before 5.5.25, and 5.6.x before 5.6.9.
CVE-2015-4021 is a denial of service vulnerability that can be exploited through the phar_parse_tarfile function.
If exploited, CVE-2015-4021 could lead to an integer underflow and potential memory corruption, resulting in service disruption.