SB2015102803 - Ubuntu update for PHP

CSH
CYBERSECURITY HELP
Sign In REGISTER

Main Vulnerability Database SB2015102803

SB2015102803 - Ubuntu update for PHP

Published: October 28, 2015 Updated: November 27, 2018

Security Bulletin ID SB2015102803
CSH Severity
Low
Patch available
YES
Number of vulnerabilities 2
Exploitation vector Remote access
Highest impact Denial of service

Breakdown by Severity

Low 100%
  • Low
  • Medium
  • High
  • Critical

Description

This security bulletin contains information about 2 vulnerabilities.


1) NULL pointer dereference (CVE-ID: CVE-2015-7803)

CWE-ID: CWE-476 - NULL Pointer Dereference

CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear


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)

CWE-ID: CWE-193 - Off-by-one Error

CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear


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.


Remediation

Install update from vendor's website.

References