critical
CVE-2016-6295
php: Use after free in SNMP with GC and unserialize()
In the Trivy database since at least 24 Oct 2026, 07:11 UTCWhen it arrived before that build is not recorded.
Severity by source
NVD9.8CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Red Hat7.0CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
Trivy's own label is CRITICAL. Rated critical by NVD. Rated lower by Red Hat (medium), Ubuntu (medium).
Description
ext/snmp/snmp.c in PHP before 5.5.38, 5.6.x before 5.6.24, and 7.x before 7.0.9 improperly interacts with the unserialize implementation and garbage collection, which allows remote attackers to cause a denial of service (use-after-free and application crash) or possibly have unspecified other impact via crafted serialized data, a related issue to CVE-2016-5773.
Affected packages and fixed versions
| Source | Package | Fixed in |
|---|---|---|
| debian 7 | php5 | 5.4.45-0+deb7u5 |
| debian 8 | php5 | 5.6.24+dfsg-0+deb8u1 |
| Red Hat | php, php-bcmath, php-cli and 22 more | no fix listed |
| ubuntu 14.04 | php5 | 5.5.9+dfsg-1ubuntu4.19 |
| ubuntu 14.04-ESM | php5 | 5.5.9+dfsg-1ubuntu4.19 |
| ubuntu 16.04 | php7.0 | 7.0.8-0ubuntu0.16.04.2 |
| ubuntu 16.04-ESM | php7.0 | 7.0.8-0ubuntu0.16.04.2 |
Show all 31 entries from 7 sources
| Source | Package | Fixed in |
|---|---|---|
| debian 7 | php5 | 5.4.45-0+deb7u5 |
| debian 8 | php5 | 5.6.24+dfsg-0+deb8u1 |
| Red Hat | php | no fix listed |
| Red Hat | php-bcmath | no fix listed |
| Red Hat | php-cli | no fix listed |
| Red Hat | php-common | no fix listed |
| Red Hat | php-dba | no fix listed |
| Red Hat | php-devel | no fix listed |
| Red Hat | php-embedded | no fix listed |
| Red Hat | php-enchant | no fix listed |
| Red Hat | php-fpm | no fix listed |
| Red Hat | php-gd | no fix listed |
| Red Hat | php-intl | no fix listed |
| Red Hat | php-ldap | no fix listed |
| Red Hat | php-mbstring | no fix listed |
| Red Hat | php-mysql | no fix listed |
| Red Hat | php-mysqlnd | no fix listed |
| Red Hat | php-odbc | no fix listed |
| Red Hat | php-pdo | no fix listed |
| Red Hat | php-pgsql | no fix listed |
| Red Hat | php-process | no fix listed |
| Red Hat | php-pspell | no fix listed |
| Red Hat | php-recode | no fix listed |
| Red Hat | php-snmp | no fix listed |
| Red Hat | php-soap | no fix listed |
| Red Hat | php-xml | no fix listed |
| Red Hat | php-xmlrpc | no fix listed |
| ubuntu 14.04 | php5 | 5.5.9+dfsg-1ubuntu4.19 |
| ubuntu 14.04-ESM | php5 | 5.5.9+dfsg-1ubuntu4.19 |
| ubuntu 16.04 | php7.0 | 7.0.8-0ubuntu0.16.04.2 |
| ubuntu 16.04-ESM | php7.0 | 7.0.8-0ubuntu0.16.04.2 |
References
- http://git.php.net/?p=php-src.git%3Ba=commit%3Bh=cab1c3b3708eead315e033359d07049b23b147a3
- http://lists.apple.com/archives/security-announce/2016/Sep/msg00006.html
- http://openwall.com/lists/oss-security/2016/07/24/2
- http://php.net/ChangeLog-5.php
- http://php.net/ChangeLog-7.php
- http://rhn.redhat.com/errata/RHSA-2016-2750.html
- http://www.debian.org/security/2016/dsa-3631
- http://www.securityfocus.com/bid/92094
All 16 references
- http://www.securitytracker.com/id/1036430
- https://access.redhat.com/security/cve/CVE-2016-6295
- https://bugs.php.net/72479
- https://nvd.nist.gov/vuln/detail/CVE-2016-6295
- https://security.gentoo.org/glsa/201611-22
- https://support.apple.com/HT207170
- https://ubuntu.com/security/notices/USN-3045-1
- https://www.cve.org/CVERecord?id=CVE-2016-6295