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MozillaCVE-2020-6806

HistoryMar 25, 2020 - 10:15 p.m.

CVE-2020-6806

2020-03-2522:15:12

CWE-125

mozilla

web.nvd.nist.gov

224

cve-2020-6806

out-of-bounds read

vulnerability

thunderbird

firefox

nvd

CVSS2

6.8

Attack Vector

NETWORK

Attack Complexity

MEDIUM

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

PARTIAL

Availability Impact

PARTIAL

AV:N/AC:M/Au:N/C:P/I:P/A:P

CVSS3

8.8

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

REQUIRED

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

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

AI Score

Confidence

High

EPSS

0.526

Percentile

97.6%

JSON

By carefully crafting promise resolutions, it was possible to cause an out-of-bounds read off the end of an array resized during script execution. This could have led to memory corruption and a potentially exploitable crash. This vulnerability affects Thunderbird < 68.6, Firefox < 74, Firefox < ESR68.6, and Firefox ESR < 68.6.

Affected configurations

Nvd

Vulners

Node

mozillafirefoxRange<74.0

mozillafirefox_esrRange<68.6.0

mozillathunderbirdRange<68.6.0

Node

canonicalubuntu_linuxMatch16.04esm

canonicalubuntu_linuxMatch18.04lts

canonicalubuntu_linuxMatch19.10

VendorProductVersionCPE
mozillafirefox*cpe:2.3:a:mozilla:firefox:*:*:*:*:*:*:*:*
mozillafirefox_esr*cpe:2.3:a:mozilla:firefox_esr:*:*:*:*:*:*:*:*
mozillathunderbird*cpe:2.3:a:mozilla:thunderbird:*:*:*:*:*:*:*:*
canonicalubuntu_linux16.04cpe:2.3:o:canonical:ubuntu_linux:16.04:*:*:*:esm:*:*:*
canonicalubuntu_linux18.04cpe:2.3:o:canonical:ubuntu_linux:18.04:*:*:*:lts:*:*:*
canonicalubuntu_linux19.10cpe:2.3:o:canonical:ubuntu_linux:19.10:*:*:*:*:*:*:*

Vendor	Product	Version	CPE
mozilla	firefox	*	cpe:2.3:a:mozilla:firefox::::::::
mozilla	firefox_esr	*	cpe:2.3:a:mozilla:firefox_esr::::::::
mozilla	thunderbird	*	cpe:2.3:a:mozilla:thunderbird::::::::
canonical	ubuntu_linux	16.04	cpe:2.3:o:canonical:ubuntu_linux:16.04::::esm:::
canonical	ubuntu_linux	18.04	cpe:2.3:o:canonical:ubuntu_linux:18.04::::lts:::
canonical	ubuntu_linux	19.10	cpe:2.3:o:canonical:ubuntu_linux:19.10:::::::*

CNA Affected

[
  {
    "product": "Thunderbird",
    "vendor": "Mozilla",
    "versions": [
      {
        "lessThan": "68.6",
        "status": "affected",
        "version": "unspecified",
        "versionType": "custom"
      }
    ]
  },
  {
    "product": "Firefox",
    "vendor": "Mozilla",
    "versions": [
      {
        "lessThan": "74",
        "status": "affected",
        "version": "unspecified",
        "versionType": "custom"
      },
      {
        "lessThan": "ESR68.6",
        "status": "affected",
        "version": "unspecified",
        "versionType": "custom"
      }
    ]
  },
  {
    "product": "Firefox ESR",
    "vendor": "Mozilla",
    "versions": [
      {
        "lessThan": "68.6",
        "status": "affected",
        "version": "unspecified",
        "versionType": "custom"
      }
    ]
  }
]