HTTP: PHP TAR File Parsing Uninitialized Reference

This signature detects attempts to exploit a known vulnerability against PHP Tar file parse. Versions PHP before 5.6.18 are vulnerable. Successful attack could result in arbitrary code execution on the vulnerable server.

Extended Description

The phar_make_dirstream function in ext/phar/dirstream.c in PHP before 5.6.18 and 7.x before 7.0.3 mishandles zero-size ././@LongLink files, which allows remote attackers to cause a denial of service (uninitialized pointer dereference) or possibly have unspecified other impact via a crafted TAR archive.

Affected Products

Php php

References

CVE: CVE-2016-4343

Short Name
HTTP:PHP:TAR-FILE-PTR
Severity
Major
Recommended
True
Recommended Action
Drop
Category
HTTP
Keywords
CVE-2016-4343 File PHP Parsing Reference TAR Uninitialized
Release Date
07/25/2016
Supported Platforms

srx-branch-12.3

srx-19.3

srx-branch-19.3

vsrx3bsd-19.2

srx-branch-19.4

vsrx-19.4

mx-12.3

mx-19.4

vmx-19.4

mx-19.3

vsrx3bsd-19.4

srx-19.4

vsrx-12.3

vmx-19.3

vsrx-19.2

srx-12.3

Sigpack Version
3590
False Positive
Unknown
Vendors

Opensuse

Php

CVSS Score

6.8

Found a potential security threat?