CVE-2019-11759

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.

CVSS v3.0 8.8 HIGH
CVSS v2.0 6.8 MEDIUM

8.8^/10

CVSS v3.0 : HIGH

Vector :

Exploitability : 2.8 / Impact : 5.9

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction REQUIRED

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

6.8^/10

CVSS v2.0 : MEDIUM

Vector : AV:N/AC:M/Au:N/C:P/I:P/A:P

Exploitability : 8.6 / Impact : 6.4

Access Vector NETWORK

Access Complexity MEDIUM

Authentication NONE

Confidentiality Impact PARTIAL

Integrity Impact PARTIAL

Availability Impact PARTIAL

References

Link	Resource
https://www.mozilla.org/security/advisories/mfsa2019-35/	Vendor Advisory
https://www.mozilla.org/security/advisories/mfsa2019-34/	Vendor Advisory
https://bugzilla.mozilla.org/show_bug.cgi?id=1577953	Permissions Required
https://www.mozilla.org/security/advisories/mfsa2019-33/	Vendor Advisory
https://security.gentoo.org/glsa/202003-10
https://usn.ubuntu.com/4335-1/

Configurations

Configuration 1 (hide)

OR	cpe:2.3:a:mozilla:firefox::::::::
	cpe:2.3:a:mozilla:firefox_esr::::::::
	cpe:2.3:a:mozilla:thunderbird::::::::

Information

Published : 2020-01-08 20:15

Updated : 2020-03-14 19:15

NVD link : CVE-2019-11759

Mitre link : CVE-2019-11759

JSON object : View

Products Affected

mozilla

firefox_esr
thunderbird
firefox

CWE

CWE-120

Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')

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