CVE-2019-11759

Current 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.

Basic Data

PublishedJanuary 08, 2020
Last ModifiedJanuary 13, 2020
Assignercve@mitre.org
Data TypeCVE
Data FormatMITRE
Data Version4.0
Problem TypeCWE-120
CVE Data Version4.0

Base Metric V2

CVSS 2 - Version2.0
CVSS 2 - Vector StringAV:N/AC:M/Au:N/C:P/I:P/A:P
CVSS 2 - Access VectorNETWORK
CVSS 2 - Access ComplexityMEDIUM
CVSS 2 - AuthenticationNONE
CVSS 2 - Confidentiality ImpactPARTIAL
CVSS 2 - Availability ImpactPARTIAL
CVSS 2 - Base Score6.8
SeverityMEDIUM
Exploitability Score8.6
Impact Score6.4
Obtain All Privilegefalse
Obtain User Privilegefalse
Obtain Other Privilegefalse

Base Metric V3

No data provided.

Configurations

  • OR - Configuration 1
    Cpe VersionPartVendorProductVersionUpdateEditionLanguageSW EditionTarget SWTarget HWOtherVersion Start IncludingVersion End IncludingVersion Start ExcludingVersion End Excluding
    2.3ApplicationMozillaThunderbird********68.2
    2.3ApplicationMozillaFirefox Esr********68.2
    2.3ApplicationMozillaFirefox********70.0

Vulnerable Software List

VendorProductVersions
Mozilla Firefox *
Mozilla Thunderbird *
Mozilla Firefox Esr *

References

NameSourceURLTags
https://www.mozilla.org/security/advisories/mfsa2019-35/CONFIRMhttps://www.mozilla.org/security/advisories/mfsa2019-35/Vendor Advisory Vendor Advisory Vendor Advisory Permissions Required
https://www.mozilla.org/security/advisories/mfsa2019-34/CONFIRMhttps://www.mozilla.org/security/advisories/mfsa2019-34/
https://www.mozilla.org/security/advisories/mfsa2019-33/CONFIRMhttps://www.mozilla.org/security/advisories/mfsa2019-33/
https://bugzilla.mozilla.org/show_bug.cgi?id=1577953CONFIRMhttps://bugzilla.mozilla.org/show_bug.cgi?id=1577953