CVEvulnerability
CVE-2019-11759
8.8 HIGH
Official page ↗
- Status
- Modified
- Published
- 2020-01-08
- Last modified
- 2026-06-17
- Assigner
- [email protected]
- CVSS 3.1 ([email protected])
- 8.8 HIGH — CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
- CVSS 2.0 ([email protected])
- 6.8 MEDIUM — AV:N/AC:M/Au:N/C:P/I:P/A:P
- Weaknesses
- CWE-120
Description
An attacker could have caused 4 bytes of HMAC output to be written past the end of a buffer stored on the stack. This could be used by an attacker to execute arbitrary code or more likely lead to a crash. This vulnerability affects Firefox < 70, Thunderbird < 68.2, and Firefox ESR < 68.2.
Affected configurations
• mozilla firefox (< 70.0)
• mozilla firefox esr (< 68.2)
• mozilla thunderbird (< 68.2)
• canonical ubuntu linux 16.04
Related
Weakness · CWE (1)
- CWE-120 Buffer Copy without Checking Size of Input weakness
References
- https://bugzilla.mozilla.org/show_bug.cgi?id=1577953 Issue Tracking, Permissions Required
- https://security.gentoo.org/glsa/202003-10 Third Party Advisory
- https://usn.ubuntu.com/4335-1/ Third Party Advisory
- https://www.mozilla.org/security/advisories/mfsa2019-33/ Vendor Advisory
- https://www.mozilla.org/security/advisories/mfsa2019-34/ Vendor Advisory
- https://www.mozilla.org/security/advisories/mfsa2019-35/ Vendor Advisory
- https://bugzilla.mozilla.org/show_bug.cgi?id=1577953 Issue Tracking, Permissions Required
- https://security.gentoo.org/glsa/202003-10 Third Party Advisory
- https://usn.ubuntu.com/4335-1/ Third Party Advisory
- https://www.mozilla.org/security/advisories/mfsa2019-33/ Vendor Advisory
- https://www.mozilla.org/security/advisories/mfsa2019-34/ Vendor Advisory
- https://www.mozilla.org/security/advisories/mfsa2019-35/ Vendor Advisory