CVE-2016-5114

sapi/fpm/fpm/fpmlog.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 REQUESTURI logging.

Database specific

{
    "unresolved_ranges": [
        {
            "cpes": [
                "cpe:2.3:a:php:php:5.6.0:alpha4:*:*:*:*:*:*",
                "cpe:2.3:a:php:php:5.6.0:alpha5:*:*:*:*:*:*"
            ],
            "extracted_events": [
                {
                    "introduced": "5.6.0-alpha4"
                },
                {
                    "last_affected": "5.6.0-alpha4"
                },
                {
                    "introduced": "5.6.0-alpha5"
                },
                {
                    "last_affected": "5.6.0-alpha5"
                }
            ],
            "vendor_product": "php:php",
            "source": "CPE_STRING"
        }
    ]
}

References

Affected packages

Git / github.com/php/php-src

Affected ranges

Type

GIT

Repo

https://github.com/php/php-src

Events

Introduced

Last affected

82d537811cffa2851bae985b47b2ba91818f0c58

Introduced

8648f76bac2f78391a1539253f21d62f53d83022

Last affected

4054ec69da7631046f19d54ab06f09728a208b8b

Fixed

2721a0148649e07ed74468f097a28899741eb58f

Database specific

{
    "cpe": [
        "cpe:2.3:a:php:php:*:*:*:*:*:*:*:*",
        "cpe:2.3:a:php:php:5.6.0:alpha1:*:*:*:*:*:*",
        "cpe:2.3:a:php:php:5.6.0:alpha2:*:*:*:*:*:*",
        "cpe:2.3:a:php:php:5.6.0:alpha3:*:*:*:*:*:*",
        "cpe:2.3:a:php:php:5.6.0:beta1:*:*:*:*:*:*",
        "cpe:2.3:a:php:php:5.6.0:beta2:*:*:*:*:*:*",
        "cpe:2.3:a:php:php:5.6.0:beta3:*:*:*:*:*:*",
        "cpe:2.3:a:php:php:5.6.0:beta4:*:*:*:*:*:*",
        "cpe:2.3:a:php:php:5.6.1:*:*:*:*:*:*:*",
        "cpe:2.3:a:php:php:5.6.2:*:*:*:*:*:*:*",
        "cpe:2.3:a:php:php:5.6.3:*:*:*:*:*:*:*",
        "cpe:2.3:a:php:php:5.6.4:*:*:*:*:*:*:*",
        "cpe:2.3:a:php:php:5.6.5:*:*:*:*:*:*:*",
        "cpe:2.3:a:php:php:5.6.6:*:*:*:*:*:*:*",
        "cpe:2.3:a:php:php:5.6.7:*:*:*:*:*:*:*",
        "cpe:2.3:a:php:php:5.6.8:*:*:*:*:*:*:*",
        "cpe:2.3:a:php:php:5.6.9:*:*:*:*:*:*:*",
        "cpe:2.3:a:php:php:5.6.10:*:*:*:*:*:*:*",
        "cpe:2.3:a:php:php:5.6.11:*:*:*:*:*:*:*",
        "cpe:2.3:a:php:php:5.6.12:*:*:*:*:*:*:*",
        "cpe:2.3:a:php:php:5.6.13:*:*:*:*:*:*:*",
        "cpe:2.3:a:php:php:5.6.14:*:*:*:*:*:*:*",
        "cpe:2.3:a:php:php:5.6.15:*:*:*:*:*:*:*",
        "cpe:2.3:a:php:php:5.6.16:*:*:*:*:*:*:*",
        "cpe:2.3:a:php:php:7.0.0:*:*:*:*:*:*:*",
        "cpe:2.3:a:php:php:7.0.1:*:*:*:*:*:*:*"
    ],
    "extracted_events": [
        {
            "introduced": "0"
        },
        {
            "last_affected": "5.5.30"
        },
        {
            "introduced": "5.6.0-alpha1"
        },
        {
            "last_affected": "5.6.0-alpha1"
        },
        {
            "introduced": "5.6.0-alpha2"
        },
        {
            "last_affected": "5.6.0-alpha2"
        },
        {
            "introduced": "5.6.0-alpha3"
        },
        {
            "last_affected": "5.6.0-alpha3"
        },
        {
            "introduced": "5.6.0-beta1"
        },
        {
            "last_affected": "5.6.0-beta1"
        },
        {
            "introduced": "5.6.0-beta2"
        },
        {
            "last_affected": "5.6.0-beta2"
        },
        {
            "introduced": "5.6.0-beta3"
        },
        {
            "last_affected": "5.6.0-beta3"
        },
        {
            "introduced": "5.6.0-beta4"
        },
        {
            "last_affected": "5.6.0-beta4"
        },
        {
            "introduced": "5.6.1"
        },
        {
            "last_affected": "5.6.1"
        },
        {
            "introduced": "5.6.2"
        },
        {
            "last_affected": "5.6.2"
        },
        {
            "introduced": "5.6.3"
        },
        {
            "last_affected": "5.6.3"
        },
        {
            "introduced": "5.6.4"
        },
        {
            "last_affected": "5.6.4"
        },
        {
            "introduced": "5.6.5"
        },
        {
            "last_affected": "5.6.5"
        },
        {
            "introduced": "5.6.6"
        },
        {
            "last_affected": "5.6.6"
        },
        {
            "introduced": "5.6.7"
        },
        {
            "last_affected": "5.6.7"
        },
        {
            "introduced": "5.6.8"
        },
        {
            "last_affected": "5.6.8"
        },
        {
            "introduced": "5.6.9"
        },
        {
            "last_affected": "5.6.9"
        },
        {
            "introduced": "5.6.10"
        },
        {
            "last_affected": "5.6.10"
        },
        {
            "introduced": "5.6.11"
        },
        {
            "last_affected": "5.6.11"
        },
        {
            "introduced": "5.6.12"
        },
        {
            "last_affected": "5.6.12"
        },
        {
            "introduced": "5.6.13"
        },
        {
            "last_affected": "5.6.13"
        },
        {
            "introduced": "5.6.14"
        },
        {
            "last_affected": "5.6.14"
        },
        {
            "introduced": "5.6.15"
        },
        {
            "last_affected": "5.6.15"
        },
        {
            "introduced": "5.6.16"
        },
        {
            "last_affected": "5.6.16"
        },
        {
            "introduced": "7.0.0"
        },
        {
            "last_affected": "7.0.0"
        },
        {
            "introduced": "7.0.1"
        },
        {
            "last_affected": "7.0.1"
        }
    ],
    "source": [
        "CPE_RANGE",
        "CPE_STRING",
        "REFERENCES"
    ]
}

Affected versions

5.*

5.6.0-alpha1

5.6.0-alpha2

5.6.0-alpha3

5.6.0-beta1

5.6.0-beta2

5.6.0-beta3

5.6.0-beta4

5.6.1

5.6.10

5.6.11

5.6.12

5.6.13

5.6.14

5.6.15

5.6.16

5.6.2

5.6.3

5.6.4

5.6.5

5.6.6

5.6.7

5.6.8

5.6.9

7.*

7.0.0

7.0.1

Other

POST_64BIT_BRANCH_MERGE

POST_AST_MERGE

POST_PHP7_NSAPI_REMOVAL

POST_PHP7_REMOVALS

POST_PHPNG_MERGE

PRE_64BIT_BRANCH_MERGE

PRE_AST_MERGE

PRE_PHP7_EREG_MYSQL_REMOVALS

PRE_PHP7_NSAPI_REMOVAL

PRE_PHP7_REMOVALS

php-5.*

php-5.5.30

php-7.*

php-7.0.1

php-7.0.1RC1

php-7.0.2RC1

Database specific

vanir_signatures_modified

"2026-07-08T12:05:59Z"

vanir_signatures

[
    {
        "target": {
            "file": "sapi/fpm/fpm/fpm_log.c"
        },
        "id": "CVE-2016-5114-2b4d9166",
        "digest": {
            "line_hashes": [
                "173546673262426173184942032182949250695",
                "321622208661209477458049574569903221220",
                "166444530145029150694248049069211197840",
                "205433036944475656471158298503614011224"
            ],
            "threshold": 0.9
        },
        "deprecated": false,
        "signature_version": "v1",
        "signature_type": "Line",
        "source": "https://github.com/php/php-src/commit/2721a0148649e07ed74468f097a28899741eb58f"
    },
    {
        "target": {
            "function": "fpm_log_write",
            "file": "sapi/fpm/fpm/fpm_log.c"
        },
        "id": "CVE-2016-5114-e692c715",
        "digest": {
            "function_hash": "18497476000700736301362621056643006825",
            "length": 7950.0
        },
        "deprecated": false,
        "signature_version": "v1",
        "signature_type": "Function",
        "source": "https://github.com/php/php-src/commit/2721a0148649e07ed74468f097a28899741eb58f"
    }
]

source

"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2016-5114.json"