CVE-2016-5771 — Use After Free in PHP

CWE-416 — Use After Free11 documents8 sources
Severity
9.8CRITICALNVD
EPSS
9.6%
top 7.12%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
6
PHPPhp5Apple Macos Sierra+3 more
Timeline
PublishedAug 7
Latest updateMay 14

Description

spl_array.c in the SPL extension in PHP before 5.5.37 and 5.6.x before 5.6.23 improperly interacts with the unserialize implementation and garbage collection, which allows remote attackers to execute arbitrary code or cause a denial of service (use-after-free and application crash) via crafted serialized data.

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:HExploitability: 3.9 | Impact: 5.9

Affected Packages5 packages

▶NVDphp/php5.6.0 — 5.6.23+2
▶Ubuntuphp5/php5< 5.5.9+dfsg-1ubuntu4.19
▶NVDopensuse/leap42.1
▶Appleapple/macos_sierra10.12

Also affects: Debian Linux 8.0

Patches

Patch: github.com ↗Patch: php.net ↗Patch: www.openwall.com ↗

🔴Vulnerability Details

3
GHSA
GHSA-pxh8-vqh4-j2qq: spl_array↗2022-05-14
▶
OSV
php5, php7.0 vulnerabilities↗2016-08-02
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OSV
CVE-2016-5771: spl_array↗2016-06-24
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📋Vendor Advisories

3
Apple
CVE-2016-5771: macOS Sierra 10.12↗2016-09-20
▶
Ubuntu
PHP vulnerabilities↗2016-08-02
▶
Red Hat
php: Use After Free Vulnerability in PHP's GC algorithm and unserialize↗2016-06-23
▶

📄Research Papers

1
arXiv
Towards Automated Application-Specific Software Stacks↗2019-09-16
▶

💬Community

3
Bugzilla
CVE-2016-5771 php: Use After Free Vulnerability in PHP's GC algorithm and unserialize↗2016-06-29
▶
Bugzilla
CVE-2016-5773 php: ZipArchive class Use After Free Vulnerability in PHP's GC algorithm and unserialize↗2016-06-29
▶
Bugzilla
CVE-2016-5766 CVE-2016-5767 CVE-2016-5768 CVE-2016-5769 CVE-2016-5770 CVE-2016-5771 CVE-2016-5772 CVE-2016-5773 php: various flaws [fedora-all]↗2016-06-29
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