9.1crit

CVE-2017-7753

An out-of-bounds read occurs when applying style rules to pseudo-elements, such as ::first-line, using cached style data.

Published 8 y ago · modified 4 mo ago · JSON

CVSS
9.1
v3.0 · NVD
CISA KEV
No
not known exploited
EPSS
3.1%
percentile 88%
Public exploits
0
none known

Summary

An out-of-bounds read occurs when applying style rules to pseudo-elements, such as ::first-line, using cached style data. This vulnerability affects Thunderbird < 52.3, Firefox ESR < 52.3, and Firefox < 55.

Exploit prediction (EPSS)

3.08% probability of exploitation in the next 30 days, higher than 88% of all scored CVEs.

CVSS scores

Assigned byVersionScoreVector
NVD3.09.1CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H
NVD2.06.4AV:N/AC:L/Au:N/C:P/I:N/A:P

Affected products

  • Mozilla Thunderbird
  • Mozilla Firefox ESR
  • Mozilla Firefox

Classification

Weakness

References

  • mozilla.org /security/advisories/mfsa2017-19/ · x_refsource_CONFIRM, x_transferred
  • mozilla.org /security/advisories/mfsa2017-20/ · x_refsource_CONFIRM, x_transferred
  • debian.org /security/2017/dsa-3968 · vendor-advisory, x_refsource_DEBIAN, x_transferred
  • mozilla.org /security/advisories/mfsa2017-18/ · x_refsource_CONFIRM, x_transferred
  • access.redhat.com /errata/RHSA-2017:2456 · vendor-advisory, x_refsource_REDHAT, x_transferred
  • access.redhat.com /errata/RHSA-2017:2534 · vendor-advisory, x_refsource_REDHAT, x_transferred
  • securityfocus.com /bid/100315 · vdb-entry, x_refsource_BID, x_transferred
  • bugzilla.mozilla.org /show_bug.cgi?id=1353312 · x_refsource_CONFIRM, x_transferred
  • securitytracker.com /id/1039124 · vdb-entry, x_refsource_SECTRACK, x_transferred
  • security.gentoo.org /glsa/201803-14 · vendor-advisory, x_refsource_GENTOO, x_transferred
  • debian.org /security/2017/dsa-3928 · vendor-advisory, x_refsource_DEBIAN, x_transferred

Sources

vulnwire keeps one entry per vulnerability: the CVE id wins, then GHSA; records that alias each other are merged. Machine-readable: JSON.