CVE-2019-11050 Use-after-free in exif parsing under memory sanitizer

2019-12-1700:00:00

CWE-125

php

www.cve.org

4.8 Medium

CVSS3

Attack Vector

NETWORK

Attack Complexity

HIGH

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

LOW

Integrity Impact

NONE

Availability Impact

LOW

CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:L

7.7 High

AI Score

Confidence

High

0.004 Low

EPSS

Percentile

74.4%

JSON

When PHP EXIF extension is parsing EXIF information from an image, e.g. via exif_read_data() function, in PHP versions 7.2.x below 7.2.26, 7.3.x below 7.3.13 and 7.4.0 it is possible to supply it with data what will cause it to read past the allocated buffer. This may lead to information disclosure or crash.

CNA Affected

[
  {
    "product": "PHP",
    "vendor": "PHP Group",
    "versions": [
      {
        "lessThan": "7.2.26",
        "status": "affected",
        "version": "7.2.x",
        "versionType": "custom"
      },
      {
        "lessThan": "7.3.13",
        "status": "affected",
        "version": "7.3.x",
        "versionType": "custom"
      },
      {
        "lessThan": "7.4.1",
        "status": "affected",
        "version": "7.4.x",
        "versionType": "custom"
      }
    ]
  }
]