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cveMozillaCVE-2019-17023
HistoryJan 08, 2020 - 10:15 p.m.

CVE-2019-17023

2020-01-0822:15:12
CWE-287
mozilla
web.nvd.nist.gov
365
4
tls 1.3
protocol
negotiation
vulnerability
firefox
nvd

CVSS2

4.3

Attack Vector

NETWORK

Attack Complexity

MEDIUM

Authentication

NONE

Confidentiality Impact

NONE

Integrity Impact

PARTIAL

Availability Impact

NONE

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

CVSS3

6.5

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

REQUIRED

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

HIGH

Availability Impact

NONE

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

AI Score

6.9

Confidence

High

EPSS

0.002

Percentile

59.8%

After a HelloRetryRequest has been sent, the client may negotiate a lower protocol that TLS 1.3, resulting in an invalid state transition in the TLS State Machine. If the client gets into this state, incoming Application Data records will be ignored. This vulnerability affects Firefox < 72.

Affected configurations

Nvd
Vulners
Node
mozillafirefoxRange<72.0
Node
canonicalubuntu_linuxMatch16.04lts
OR
canonicalubuntu_linuxMatch18.04lts
OR
canonicalubuntu_linuxMatch19.04
OR
canonicalubuntu_linuxMatch19.10
OR
canonicalubuntu_linuxMatch20.04lts
Node
debiandebian_linuxMatch10.0
VendorProductVersionCPE
mozillafirefox*cpe:2.3:a:mozilla:firefox:*:*:*:*:*:*:*:*
canonicalubuntu_linux16.04cpe:2.3:o:canonical:ubuntu_linux:16.04:*:*:*:lts:*:*:*
canonicalubuntu_linux18.04cpe:2.3:o:canonical:ubuntu_linux:18.04:*:*:*:lts:*:*:*
canonicalubuntu_linux19.04cpe:2.3:o:canonical:ubuntu_linux:19.04:*:*:*:*:*:*:*
canonicalubuntu_linux19.10cpe:2.3:o:canonical:ubuntu_linux:19.10:*:*:*:*:*:*:*
canonicalubuntu_linux20.04cpe:2.3:o:canonical:ubuntu_linux:20.04:*:*:*:lts:*:*:*
debiandebian_linux10.0cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:*

CNA Affected

[
  {
    "product": "Firefox",
    "vendor": "Mozilla",
    "versions": [
      {
        "status": "affected",
        "version": "before 72"
      }
    ]
  }
]

Social References

More

CVSS2

4.3

Attack Vector

NETWORK

Attack Complexity

MEDIUM

Authentication

NONE

Confidentiality Impact

NONE

Integrity Impact

PARTIAL

Availability Impact

NONE

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

CVSS3

6.5

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

REQUIRED

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

HIGH

Availability Impact

NONE

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

AI Score

6.9

Confidence

High

EPSS

0.002

Percentile

59.8%