CVE-2018-0001: juniper networks junos os Use After Free

Vulnerability summary

CVE-2018-0001 is a critical (CVSS 9.8) Use After Free vulnerability in juniper networks junos os. EPSS estimates a 6.33% chance of exploitation in the next 30 days, higher than 93.5% of scored vulnerabilities.

Timeline

1. 10-01-2018
   PublishedVulnerability first disclosed.
2. 17-09-2024
   Last modifiedVulnerability information updated.

Description

A remote, unauthenticated attacker may be able to execute code by exploiting a use-after-free defect found in older versions of PHP through injection of crafted data via specific PHP URLs within the context of the J-Web process. Affected releases are Juniper Networks Junos OS: 12.1X46 versions prior to 12.1X46-D67; 12.3 versions prior to 12.3R12-S5; 12.3X48 versions prior to 12.3X48-D35; 14.1 versions prior to 14.1R8-S5, 14.1R9; 14.1X53 versions prior to 14.1X53-D44, 14.1X53-D50; 14.2 versions prior to 14.2R7-S7, 14.2R8; 15.1 versions prior to 15.1R3; 15.1X49 versions prior to 15.1X49-D30; 15.1X53 versions prior to 15.1X53-D70.

• CWE-416Use After FreeThe product reuses or references memory after it has been freed. At some point afterward, the memory may be allocated again and saved in another pointer, while the original pointer references a location somewhere within the new allocation. Any operations using the original pointer are no longer valid because the memory "belongs" to the code that operates on the new pointer.