vulnwire
9.8crit

CVE-2016-5270

Heap-based buffer overflow in the nsCaseTransformTextRunFactory::TransformString function in Mozilla Firefox before 49.0, Firefox ESR 45.x…

Published 10 y ago · modified 4 mo ago · JSON

CVSS
9.8
v3.0 · NVD
CISA KEV
No
not known exploited
EPSS
4.0%
percentile 90%
Public exploits
0
none known

Heap-based buffer overflow in the nsCaseTransformTextRunFactory::TransformString function in Mozilla Firefox before 49.0, Firefox ESR 45.x before 45.4, and Thunderbird < 45.4 allows remote attackers to cause a denial of service (boolean out-of-bounds write) or possibly have unspecified other impact via Unicode characters that are mishandled during text conversion.

Exploit prediction (EPSS)

3.96% probability of exploitation in the next 30 days, higher than 90% of all scored CVEs.

CVSS scores

Assigned byVersionScoreVector
NVD3.09.8CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
NVD2.07.5AV:N/AC:L/Au:N/C:P/I:P/A:P

Classification

Weakness
  • CWE-119 Improper Restriction of Operations within the Bounds of a Memory Buffer
  • CWE-787 Out-of-bounds Write

References

  • oracle.com /technetwork/topics/security/linuxbulletinoct2016-3090545.html · x_refsource_CONFIRM, x_transferred
  • mozilla.org /security/announce/2016/mfsa2016-85.html · x_refsource_CONFIRM, x_transferred
  • mozilla.org /security/advisories/mfsa2016-86/ · x_refsource_CONFIRM, x_transferred
  • debian.org /security/2016/dsa-3674 · vendor-advisory, x_refsource_DEBIAN, x_transferred
  • bugzilla.mozilla.org /show_bug.cgi?id=1291016 · x_refsource_CONFIRM, x_transferred
  • security.gentoo.org /glsa/201701-15 · vendor-advisory, x_refsource_GENTOO, x_transferred
  • rhn.redhat.com /errata/RHSA-2016-1912.html · vendor-advisory, x_refsource_REDHAT, x_transferred
  • mozilla.org /security/advisories/mfsa2016-88/ · x_refsource_CONFIRM, x_transferred
  • securityfocus.com /bid/93049 · vdb-entry, x_refsource_BID, x_transferred
  • securitytracker.com /id/1036852 · vdb-entry, x_refsource_SECTRACK, x_transferred

Sources

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