CVE-2016-5114

critical
Published 2016-08-07 ยท Modified 2026-05-06
CVSS v3
9.1
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H
CVSS v4 NEW
โ€”
not yet in upstream
VIR risk
9.1

Description

sapi/fpm/fpm/fpm_log.c in PHP before 5.5.31, 5.6.x before 5.6.17, and 7.x before 7.0.2 misinterprets the semantics of the snprintf return value, which allows attackers to obtain sensitive information from process memory or cause a denial of service (out-of-bounds read and buffer overflow) via a long string, as demonstrated by a long URI in a configuration with custom REQUEST_URI logging.

Predictions

Exploit likelihood
94%
Patch ETA
โ€”

Heuristic predictions, AS-IS, for prioritization only.

Mitigations

No mitigations published for this CVE yet.

The vendor-content worker queues fetches as references arrive (check back in a few minutes). Or โ€” if you've already worked around this in production โ€” publish your fix to the community-verified tier.

โœš Propose a mitigation on Community โ†’ Mitigations published via the community go through AI scoring + 2 human reviewers + 7-day silent objection window before landing here with source_tier=community-verified.

OS impact

OSVersionStatusFixed in
suse slesaffected

Application impact

VendorProductVersionsFixed
php phpphp{"endIncluding":"5.5.30"}
php phpphp5.6.0
php phpphp5.6.1
php phpphp5.6.2
php phpphp5.6.3
php phpphp5.6.4
php phpphp5.6.5
php phpphp5.6.6
php phpphp5.6.7
php phpphp5.6.8
php phpphp5.6.9
php phpphp5.6.10
php phpphp5.6.11
php phpphp5.6.12
php phpphp5.6.13
php phpphp5.6.14
php phpphp5.6.15
php phpphp5.6.16
php phpphp7.0.0
php phpphp7.0.1

References

CWEs

CWE-119 CWE-125

Community-verified mitigations for this CVE will appear above when contributors publish them.

Verify integrity in audit chain (admin only). AS-IS.