CVE-2020-1909

2020-11-0319:15:17

CWE-416

facebook

www.cve.org

use-after-free

ios

memory corruption

crashes

code execution

animated sticker

video call

AI Score

9.4

Confidence

High

EPSS

0.003

Percentile

70.1%

JSON

A use-after-free in a logging library in WhatsApp for iOS prior to v2.20.111 and WhatsApp Business for iOS prior to v2.20.111 could have resulted in memory corruption, crashes and potentially code execution. This could have happened only if several events occurred together in sequence, including receiving an animated sticker while placing a WhatsApp video call on hold.

CNA Affected

[
  {
    "product": "WhatsApp Business for iOS",
    "vendor": "Facebook",
    "versions": [
      {
        "status": "affected",
        "version": "2.20.111"
      },
      {
        "lessThan": "2.20.111",
        "status": "affected",
        "version": "unspecified",
        "versionType": "custom"
      },
      {
        "lessThan": "unspecified",
        "status": "affected",
        "version": "2.20.81",
        "versionType": "custom"
      }
    ]
  },
  {
    "product": "WhatsApp for iOS",
    "vendor": "Facebook",
    "versions": [
      {
        "status": "affected",
        "version": "2.20.111"
      },
      {
        "lessThan": "2.20.111",
        "status": "affected",
        "version": "unspecified",
        "versionType": "custom"
      },
      {
        "lessThan": "unspecified",
        "status": "affected",
        "version": "2.20.81",
        "versionType": "custom"
      }
    ]
  }
]

References

www.whatsapp.com/security/advisories/2020/