CVE-2016-4343
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…
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (4.21%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
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.
- CVSS 3.1
- 8.8 HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
- EPSS
- 4.21% probability · 90th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-824
- Affected
- php/php · opensuse/opensuse
- Source
- cve@mitre.org
References
- http://lists.opensuse.org/opensuse-updates/2016-05/msg00086.htmlMailing List, Third Party Advisory
- http://php.net/ChangeLog-5.phpRelease Notes, Vendor Advisory
- http://php.net/ChangeLog-7.phpRelease Notes, Vendor Advisory
- http://rhn.redhat.com/errata/RHSA-2016-2750.htmlThird Party Advisory
- http://www.openwall.com/lists/oss-security/2016/04/28/2Mailing List, Third Party Advisory
- http://www.securityfocus.com/bid/89179Third Party Advisory, VDB Entry
- https://bugs.php.net/bug.php?id=71331Exploit, Issue Tracking, Vendor Advisory
- https://h20566.www2.hpe.com/portal/site/hpsc/public/kb/docDisplay?docId=emr_na-c05240731Third Party Advisory
- https://h20566.www2.hpe.com/portal/site/hpsc/public/kb/docDisplay?docId=emr_na-c05320149Third Party Advisory
- https://h20566.www2.hpe.com/portal/site/hpsc/public/kb/docDisplay?docId=emr_na-c05390722Third Party Advisory
- http://lists.opensuse.org/opensuse-updates/2016-05/msg00086.htmlMailing List, Third Party Advisory
- http://php.net/ChangeLog-5.phpRelease Notes, Vendor Advisory
- http://php.net/ChangeLog-7.phpRelease Notes, Vendor Advisory
- http://rhn.redhat.com/errata/RHSA-2016-2750.htmlThird Party Advisory
- http://www.openwall.com/lists/oss-security/2016/04/28/2Mailing List, Third Party Advisory
- http://www.securityfocus.com/bid/89179Third Party Advisory, VDB Entry
- https://bugs.php.net/bug.php?id=71331Exploit, Issue Tracking, Vendor Advisory
- https://h20566.www2.hpe.com/portal/site/hpsc/public/kb/docDisplay?docId=emr_na-c05240731Third Party Advisory
- https://h20566.www2.hpe.com/portal/site/hpsc/public/kb/docDisplay?docId=emr_na-c05320149Third Party Advisory
- https://h20566.www2.hpe.com/portal/site/hpsc/public/kb/docDisplay?docId=emr_na-c05390722Third Party Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.