VulnerabilityModified
CVE-2017-5449
A possibly exploitable crash triggered during layout and manipulation of bidirectional unicode text in concert with CSS animations.
HIGH 7.5EPSS 2.56%
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (2.56%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
Description
A possibly exploitable crash triggered during layout and manipulation of bidirectional unicode text in concert with CSS animations. This vulnerability affects Thunderbird < 52.1, Firefox ESR < 52.1, and Firefox < 53.
- CVSS 3.0
- 7.5 HIGHCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- EPSS
- 2.56% probability · 84th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-20
- Affected
- redhat/enterprise linux · redhat/enterprise linux desktop · redhat/enterprise linux server · redhat/enterprise linux server aus · redhat/enterprise linux server eus · redhat/enterprise linux workstation · mozilla/firefox · mozilla/thunderbird
- Source
- security@mozilla.org
References
- http://www.securityfocus.com/bid/97940Third Party Advisory, VDB Entry
- http://www.securitytracker.com/id/1038320Third Party Advisory, VDB Entry
- https://access.redhat.com/errata/RHSA-2017:1104Third Party Advisory
- https://access.redhat.com/errata/RHSA-2017:1106Third Party Advisory
- https://access.redhat.com/errata/RHSA-2017:1201Third Party Advisory
- https://bugzilla.mozilla.org/show_bug.cgi?id=1340127Issue Tracking, Vendor Advisory
- https://www.mozilla.org/security/advisories/mfsa2017-10/Vendor Advisory
- https://www.mozilla.org/security/advisories/mfsa2017-12/Vendor Advisory
- https://www.mozilla.org/security/advisories/mfsa2017-13/Vendor Advisory
- http://www.securityfocus.com/bid/97940Third Party Advisory, VDB Entry
- http://www.securitytracker.com/id/1038320Third Party Advisory, VDB Entry
- https://access.redhat.com/errata/RHSA-2017:1104Third Party Advisory
- https://access.redhat.com/errata/RHSA-2017:1106Third Party Advisory
- https://access.redhat.com/errata/RHSA-2017:1201Third Party Advisory
- https://bugzilla.mozilla.org/show_bug.cgi?id=1340127Issue Tracking, Vendor Advisory
- https://www.mozilla.org/security/advisories/mfsa2017-10/Vendor Advisory
- https://www.mozilla.org/security/advisories/mfsa2017-12/Vendor Advisory
- https://www.mozilla.org/security/advisories/mfsa2017-13/Vendor Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.