Mozilla Firefox 'looksLikeURL' Denial of Service Vulnerability

Risk

Medium

Date Discovered

January 2, 2020

Description

Mozilla Firefox is prone to a denial-of-service vulnerability. Attackers can exploit this issue to crash the application, denying service to legitimate users. This issue is fixed in: Firefox 72

Technologies Affected

  • Mozilla Firefox 1.0.0
  • Mozilla Firefox 1.0.1
  • Mozilla Firefox 1.0.2
  • Mozilla Firefox 1.0.3
  • Mozilla Firefox 1.0.4
  • Mozilla Firefox 1.0.5
  • Mozilla Firefox 1.0.6
  • Mozilla Firefox 1.0.7
  • Mozilla Firefox 1.0.8
  • Mozilla Firefox 1.4.1
  • Mozilla Firefox 1.5.0 12
  • Mozilla Firefox 1.5.0 Beta 1
  • Mozilla Firefox 1.5.0.1
  • Mozilla Firefox 1.5.0.10
  • Mozilla Firefox 1.5.0.11
  • Mozilla Firefox 1.5.0.2
  • Mozilla Firefox 1.5.0.3
  • Mozilla Firefox 1.5.0.4
  • Mozilla Firefox 1.5.0.5
  • Mozilla Firefox 1.5.0.6
  • Mozilla Firefox 1.5.0.7
  • Mozilla Firefox 1.5.0.8
  • Mozilla Firefox 1.5.0.9
  • Mozilla Firefox 1.5.2
  • Mozilla Firefox 1.5.3
  • Mozilla Firefox 1.5.4
  • Mozilla Firefox 1.5.5
  • Mozilla Firefox 1.5.6
  • Mozilla Firefox 1.5.7
  • Mozilla Firefox 1.5.8
  • Mozilla Firefox 1.8
  • Mozilla Firefox 10
  • Mozilla Firefox 10.0.1
  • Mozilla Firefox 10.0.10
  • Mozilla Firefox 10.0.11
  • Mozilla Firefox 10.0.12
  • Mozilla Firefox 10.0.2
  • Mozilla Firefox 10.0.3
  • Mozilla Firefox 10.0.4
  • Mozilla Firefox 10.0.5
  • Mozilla Firefox 10.0.6
  • Mozilla Firefox 10.0.7
  • Mozilla Firefox 10.0.8
  • Mozilla Firefox 10.0.9
  • Mozilla Firefox 12.0
  • Mozilla Firefox 13.0
  • Mozilla Firefox 13.0.1
  • Mozilla Firefox 14
  • Mozilla Firefox 14.0
  • Mozilla Firefox 14.0.1
  • Mozilla Firefox 14.01
  • Mozilla Firefox 15
  • Mozilla Firefox 15.0
  • Mozilla Firefox 15.0.1
  • Mozilla Firefox 16
  • Mozilla Firefox 16.0
  • Mozilla Firefox 16.0.1
  • Mozilla Firefox 16.0.2
  • Mozilla Firefox 17.0
  • Mozilla Firefox 17.0.1
  • Mozilla Firefox 17.0.10
  • Mozilla Firefox 17.0.11
  • Mozilla Firefox 17.0.2
  • Mozilla Firefox 17.0.3
  • Mozilla Firefox 17.0.4
  • Mozilla Firefox 17.0.5
  • Mozilla Firefox 17.0.6
  • Mozilla Firefox 17.0.7
  • Mozilla Firefox 17.0.8
  • Mozilla Firefox 17.0.9
  • Mozilla Firefox 18.0
  • Mozilla Firefox 18.0.1
  • Mozilla Firefox 18.0.2
  • Mozilla Firefox 19.0
  • Mozilla Firefox 19.0.1
  • Mozilla Firefox 19.0.2
  • Mozilla Firefox 2.0 .1
  • Mozilla Firefox 2.0 .10
  • Mozilla Firefox 2.0 .4
  • Mozilla Firefox 2.0 .5
  • Mozilla Firefox 2.0 .6
  • Mozilla Firefox 2.0 .7
  • Mozilla Firefox 2.0 .9
  • Mozilla Firefox 2.0 8
  • Mozilla Firefox 2.0
  • Mozilla Firefox 2.0 Beta 1
  • Mozilla Firefox 2.0 Beta1
  • Mozilla Firefox 2.0 RC2
  • Mozilla Firefox 2.0 RC3
  • Mozilla Firefox 2.0.0 .19
  • Mozilla Firefox 2.0.0 20
  • Mozilla Firefox 2.0.0.1
  • Mozilla Firefox 2.0.0.10
  • Mozilla Firefox 2.0.0.11
  • Mozilla Firefox 2.0.0.12
  • Mozilla Firefox 2.0.0.13
  • Mozilla Firefox 2.0.0.14
  • Mozilla Firefox 2.0.0.15
  • Mozilla Firefox 2.0.0.16
  • Mozilla Firefox 2.0.0.17
  • Mozilla Firefox 2.0.0.18
  • Mozilla Firefox 2.0.0.19
  • Mozilla Firefox 2.0.0.2
  • Mozilla Firefox 2.0.0.21
  • Mozilla Firefox 2.0.0.3
  • Mozilla Firefox 2.0.0.4
  • Mozilla Firefox 2.0.0.5
  • Mozilla Firefox 2.0.0.6
  • Mozilla Firefox 2.0.0.7
  • Mozilla Firefox 2.0.0.8
  • Mozilla Firefox 2.0.0.9
  • Mozilla Firefox 20.0
  • Mozilla Firefox 20.0.1
  • Mozilla Firefox 21.0
  • Mozilla Firefox 22.0
  • Mozilla Firefox 22.0.0.4917
  • Mozilla Firefox 23.0
  • Mozilla Firefox 23.0.1
  • Mozilla Firefox 24.0
  • Mozilla Firefox 24.1
  • Mozilla Firefox 24.1.1
  • Mozilla Firefox 25.0
  • Mozilla Firefox 25.0.1
  • Mozilla Firefox 26
  • Mozilla Firefox 26.0
  • Mozilla Firefox 27
  • Mozilla Firefox 27.0
  • Mozilla Firefox 27.0.1
  • Mozilla Firefox 28
  • Mozilla Firefox 28.0
  • Mozilla Firefox 28.0.1
  • Mozilla Firefox 29
  • Mozilla Firefox 29.0
  • Mozilla Firefox 29.0.1
  • Mozilla Firefox 3.0
  • Mozilla Firefox 3.0 Alpha
  • Mozilla Firefox 3.0 Beta 5
  • Mozilla Firefox 3.0 Beta2
  • Mozilla Firefox 3.0 Beta5
  • Mozilla Firefox 3.0.1
  • Mozilla Firefox 3.0.10
  • Mozilla Firefox 3.0.11
  • Mozilla Firefox 3.0.12
  • Mozilla Firefox 3.0.13
  • Mozilla Firefox 3.0.14
  • Mozilla Firefox 3.0.15
  • Mozilla Firefox 3.0.16
  • Mozilla Firefox 3.0.17
  • Mozilla Firefox 3.0.18
  • Mozilla Firefox 3.0.19
  • Mozilla Firefox 3.0.2
  • Mozilla Firefox 3.0.3
  • Mozilla Firefox 3.0.4
  • Mozilla Firefox 3.0.5
  • Mozilla Firefox 3.0.6
  • Mozilla Firefox 3.0.7
  • Mozilla Firefox 3.0.7 Beta
  • Mozilla Firefox 3.0.8
  • Mozilla Firefox 3.0.9
  • Mozilla Firefox 3.0Beta5
  • Mozilla Firefox 3.1
  • Mozilla Firefox 3.1 Beta 1
  • Mozilla Firefox 3.1 Beta 2
  • Mozilla Firefox 3.1 Beta 3
  • Mozilla Firefox 3.5.0
  • Mozilla Firefox 3.5.1
  • Mozilla Firefox 3.5.10
  • Mozilla Firefox 3.5.11
  • Mozilla Firefox 3.5.12
  • Mozilla Firefox 3.5.14
  • Mozilla Firefox 3.5.15
  • Mozilla Firefox 3.5.16
  • Mozilla Firefox 3.5.17
  • Mozilla Firefox 3.5.18
  • Mozilla Firefox 3.5.19
  • Mozilla Firefox 3.5.2
  • Mozilla Firefox 3.5.3
  • Mozilla Firefox 3.5.4
  • Mozilla Firefox 3.5.5
  • Mozilla Firefox 3.5.6
  • Mozilla Firefox 3.5.7
  • Mozilla Firefox 3.5.8
  • Mozilla Firefox 3.5.9
  • Mozilla Firefox 3.6
  • Mozilla Firefox 3.6 A1 Pre
  • Mozilla Firefox 3.6 Beta 2
  • Mozilla Firefox 3.6 Beta 3
  • Mozilla Firefox 3.6.1
  • Mozilla Firefox 3.6.10
  • Mozilla Firefox 3.6.11
  • Mozilla Firefox 3.6.12
  • Mozilla Firefox 3.6.13
  • Mozilla Firefox 3.6.14
  • Mozilla Firefox 3.6.15
  • Mozilla Firefox 3.6.16
  • Mozilla Firefox 3.6.17
  • Mozilla Firefox 3.6.18
  • Mozilla Firefox 3.6.19
  • Mozilla Firefox 3.6.2
  • Mozilla Firefox 3.6.20
  • Mozilla Firefox 3.6.21
  • Mozilla Firefox 3.6.22
  • Mozilla Firefox 3.6.23
  • Mozilla Firefox 3.6.24
  • Mozilla Firefox 3.6.25
  • Mozilla Firefox 3.6.26
  • Mozilla Firefox 3.6.27
  • Mozilla Firefox 3.6.28
  • Mozilla Firefox 3.6.3
  • Mozilla Firefox 3.6.4
  • Mozilla Firefox 3.6.5
  • Mozilla Firefox 3.6.6
  • Mozilla Firefox 3.6.7
  • Mozilla Firefox 3.6.8
  • Mozilla Firefox 3.7 A1 Pre
  • Mozilla Firefox 30
  • Mozilla Firefox 30.0
  • Mozilla Firefox 31
  • Mozilla Firefox 31.0
  • Mozilla Firefox 31.1
  • Mozilla Firefox 31.1.0
  • Mozilla Firefox 31.6
  • Mozilla Firefox 31.8
  • Mozilla Firefox 31.8.0
  • Mozilla Firefox 32
  • Mozilla Firefox 32.0
  • Mozilla Firefox 32.0.3
  • Mozilla Firefox 33
  • Mozilla Firefox 33.0
  • Mozilla Firefox 34
  • Mozilla Firefox 34.0.5
  • Mozilla Firefox 35
  • Mozilla Firefox 35.0.1
  • Mozilla Firefox 36
  • Mozilla Firefox 36.0.3
  • Mozilla Firefox 36.0.4
  • Mozilla Firefox 37
  • Mozilla Firefox 37.0.1
  • Mozilla Firefox 37.0.2
  • Mozilla Firefox 38
  • Mozilla Firefox 39
  • Mozilla Firefox 40
  • Mozilla Firefox 40.0.3
  • Mozilla Firefox 41
  • Mozilla Firefox 41.0.2
  • Mozilla Firefox 42
  • Mozilla Firefox 43
  • Mozilla Firefox 43.0.1
  • Mozilla Firefox 43.0.2
  • Mozilla Firefox 44
  • Mozilla Firefox 44.0.2
  • Mozilla Firefox 45
  • Mozilla Firefox 45.0.2
  • Mozilla Firefox 46
  • Mozilla Firefox 46.0.1
  • Mozilla Firefox 47
  • Mozilla Firefox 48
  • Mozilla Firefox 49
  • Mozilla Firefox 49.0.1
  • Mozilla Firefox 49.0.2
  • Mozilla Firefox 5.0
  • Mozilla Firefox 5.0.1
  • Mozilla Firefox 50
  • Mozilla Firefox 50.0.1
  • Mozilla Firefox 50.0.2
  • Mozilla Firefox 50.1
  • Mozilla Firefox 51
  • Mozilla Firefox 52
  • Mozilla Firefox 52.0.1
  • Mozilla Firefox 53
  • Mozilla Firefox 53.0.2
  • Mozilla Firefox 54
  • Mozilla Firefox 55
  • Mozilla Firefox 56
  • Mozilla Firefox 57
  • Mozilla Firefox 57.0.1
  • Mozilla Firefox 57.0.2
  • Mozilla Firefox 57.0.4
  • Mozilla Firefox 58
  • Mozilla Firefox 58.0.1
  • Mozilla Firefox 59
  • Mozilla Firefox 59.0.1
  • Mozilla Firefox 59.0.2
  • Mozilla Firefox 6
  • Mozilla Firefox 6.0
  • Mozilla Firefox 6.0.1
  • Mozilla Firefox 6.0.2
  • Mozilla Firefox 60
  • Mozilla Firefox 60.0.2
  • Mozilla Firefox 61
  • Mozilla Firefox 62
  • Mozilla Firefox 62.0.2
  • Mozilla Firefox 62.0.3
  • Mozilla Firefox 63
  • Mozilla Firefox 63.0.3
  • Mozilla Firefox 64
  • Mozilla Firefox 65
  • Mozilla Firefox 65.0.1
  • Mozilla Firefox 65.0.2
  • Mozilla Firefox 66
  • Mozilla Firefox 66.0.1
  • Mozilla Firefox 66.0.2
  • Mozilla Firefox 66.0.3
  • Mozilla Firefox 66.0.4
  • Mozilla Firefox 66.0.5
  • Mozilla Firefox 67
  • Mozilla Firefox 67.0.2
  • Mozilla Firefox 67.0.3
  • Mozilla Firefox 67.0.4
  • Mozilla Firefox 68
  • Mozilla Firefox 68.0.1
  • Mozilla Firefox 68.0.2
  • Mozilla Firefox 69
  • Mozilla Firefox 69.0.1
  • Mozilla Firefox 69.0.2
  • Mozilla Firefox 7.0
  • Mozilla Firefox 7.0.1
  • Mozilla Firefox 70
  • Mozilla Firefox 71
  • Mozilla Firefox 8.0
  • Mozilla Firefox 8.0.1
  • Mozilla Firefox 9.0
  • Mozilla Firefox 9.0.1

Recommendations

Block external access at the network boundary, unless external parties require service.
If global access isn't needed, filter access to the affected computer at the network boundary. Restricting access to only trusted computers and networks might greatly reduce the likelihood of a successful exploit.

Run all software as a nonprivileged user with minimal access rights.
Attackers may successfully exploit client flaws in the browser through cross-site scripting vulnerabilities. When possible, run client software as regular user accounts with limited access to system resources. This may limit the immediate consequences of client-side vulnerabilities.

Do not follow links provided by unknown or untrusted sources.
Web users should be cautious about following links to websites that are provided by unfamiliar or suspicious sources. Filtering HTML from emails may help remove a possible vector for transmitting malicious links to users.

Updates are available. Please see the references or vendor advisory for more information.

References

Credits

Social Engineering Neo


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