SB2016020405 - Slackware Linux update for php
Published: February 4, 2016 Updated: May 6, 2017
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 3 secuirty vulnerabilities.
1) NULL pointer dereference (CVE-ID: CVE-2015-7803)
The vulnerability allows a remote attacker to cause DoS condition.
The vulnerability exists due to NULL pointer dereference in the phar_get_entry_data function in ext/phar/util.c in PHP before 5.5.30 and 5.6.x before 5.6.14. A remote attacker can trigger NULL pointer dereference and cause the service to crash via a .phar file with a crafted TAR archive entry in which the Link indicator references a file that does not exist.
2) Off-by-one (CVE-ID: CVE-2015-7804)
The vulnerability allows a remote attacker to cause DoS condition.
The vulnerability exists due to off-by-one error in the phar_parse_zipfile function in ext/phar/zip.c in PHP before 5.5.30 and 5.6.x before 5.6.14. A remote attacker can trigger uninitialized pointer dereference and cause the service to crash by including the / filename in a .zip PHAR archive.
3) Buffer overflow (CVE-ID: CVE-2016-1903)
The vulnerability allows a remote non-authenticated attacker to #BASIC_IMPACT#.
The gdImageRotateInterpolated function in ext/gd/libgd/gd_interpolation.c in PHP before 5.5.31, 5.6.x before 5.6.17, and 7.x before 7.0.2 allows remote attackers to obtain sensitive information or cause a denial of service (out-of-bounds read and application crash) via a large bgd_color argument to the imagerotate function.
Remediation
Install update from vendor's website.