SB2018072409 - Out-of-bounds write in php7 (Alpine package) 

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Main Vulnerability Database SB2018072409

SB2018072409 - Out-of-bounds write in php7 (Alpine package)

Published: July 24, 2018

Security Bulletin ID SB2018072409
Severity
High
Patch available
YES
Number of vulnerabilities 1
Exploitation vector Remote access
Highest impact Code execution

Breakdown by Severity

High 100%
  • Low
  • Medium
  • High
  • Critical

Description

This security bulletin contains information about 1 security vulnerability.


1) Out-of-bounds write (CVE-ID: CVE-2019-6977)

The vulnerability allows a remote attacker to execute arbitrary on the target system.

The weakness exists due to out-of-bounds write in imagecolormatch. A remote attacker can write up to 1200 bytes over the boundaries of a buffer allocated in the imagecolormatch function, which then calls gdImageColorMatch() and execute arbitrary code with elevated privileges.

Remediation

Install update from vendor's website.

References