CVE-2016-5270 — Improper Restriction of Operations within the Bounds of a Memory Buffer in Firefox
Severity
9.8CRITICALNVD
OSV6.5OSV4.3
EPSS
4.1%
top 11.34%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
Timeline
PublishedSep 22
Latest updateMay 14
Description
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.
CVSS vector
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:HExploitability: 3.9 | Impact: 5.9
Affected Packages5 packages
🔴Vulnerability Details
4GHSA▶
GHSA-2hcj-223m-pqx5: Heap-based buffer overflow in the nsCaseTransformTextRunFactory::TransformString function in Mozilla Firefox before 49↗2022-05-14
OSV▶
CVE-2016-5270: Heap-based buffer overflow in the nsCaseTransformTextRunFactory::TransformString function in Mozilla Firefox before 49↗2016-09-22
📋Vendor Advisories
4💬Community
1Bugzilla▶
CVE-2016-5270 Mozilla: Heap-buffer-overflow in nsCaseTransformTextRunFactory::TransformString (MFSA 2016-85, MFSA 2016-86)↗2016-09-20