CVE-2019-11757 - Mozilla: Use-after-free when creating index updates in IndexedDB

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HIGH

Mozilla: Use-after-free when creating index updates in IndexedDB

Published Jan 8, 2020

8.8

HIGH

CVSS 3.1

EPSS 1.39%

Description

When following the value's prototype chain, it was possible to retain a reference to a locale, delete it, and subsequently reference it. This resulted in a use-after-free and a potentially exploitable crash. This vulnerability affects Firefox < 70, Thunderbird < 68.2, and Firefox ESR < 68.2.

Affected products

Vendor Mozilla Product Firefox Default
n/a
- Version
  before 70
  Status
  affected
  Constraints
  -
Vendor Mozilla Product Firefox ESR Default
n/a
- Version
  before 68.2
  Status
  affected
  Constraints
  -
Vendor Mozilla Product Thunderbird Default
n/a
- Version
  before 68.2
  Status
  affected
  Constraints
  -

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor

Product

Default status

Versions

Mozilla

Firefox

n/a

Version	Status	Constraints
before 70	affected	-

Mozilla

Firefox ESR

n/a

Version	Status	Constraints
before 68.2	affected	-

Mozilla

Thunderbird

n/a

Version	Status	Constraints
before 68.2	affected	-

Red Hat Enterprise Linux 6

firefox-0:68.2.0-4.el6_10

Fixed · RHSA-2019:3281
Red Hat Enterprise Linux 6

thunderbird-0:68.2.0-2.el6_10

Fixed · RHSA-2019:3756
Red Hat Enterprise Linux 7

firefox-0:68.2.0-1.el7_7

Fixed · RHSA-2019:3193
Red Hat Enterprise Linux 7

thunderbird-0:68.2.0-1.el7_7

Fixed · RHSA-2019:3210
Red Hat Enterprise Linux 8

firefox-0:68.2.0-2.el8_0

Fixed · RHSA-2019:3196
Red Hat Enterprise Linux 8

thunderbird-0:68.2.0-1.el8_0

Fixed · RHSA-2019:3237
Red Hat Enterprise Linux 5

firefox

Out of support scope
Red Hat Enterprise Linux 5

thunderbird

Out of support scope

Product	Package	State	Advisory
Red Hat Enterprise Linux 6	firefox-0:68.2.0-4.el6_10	Fixed	RHSA-2019:3281
Red Hat Enterprise Linux 6	thunderbird-0:68.2.0-2.el6_10	Fixed	RHSA-2019:3756
Red Hat Enterprise Linux 7	firefox-0:68.2.0-1.el7_7	Fixed	RHSA-2019:3193
Red Hat Enterprise Linux 7	thunderbird-0:68.2.0-1.el7_7	Fixed	RHSA-2019:3210
Red Hat Enterprise Linux 8	firefox-0:68.2.0-2.el8_0	Fixed	RHSA-2019:3196
Red Hat Enterprise Linux 8	thunderbird-0:68.2.0-1.el8_0	Fixed	RHSA-2019:3237
Red Hat Enterprise Linux 5	firefox	Out of support scope	n/a
Red Hat Enterprise Linux 5	thunderbird	Out of support scope	n/a

Remediation

No remediation recorded yet.

Weaknesses (1)

CWE-416

Use After Free

References (12)

https://access.redhat.com/security/cve/CVE-2019-11757
Vendor Advisory
https://bugzilla.mozilla.org/show_bug.cgi?id=1577107
x_refsource_CONFIRMIssue TrackingPermissions Required
https://bugzilla.redhat.com/show_bug.cgi?id=1764438
Issue Tracking
https://euvd.enisa.europa.eu/vulnerability/EUVD-2019-3427
Advisory
https://nvd.nist.gov/vuln/detail/CVE-2019-11757
https://security.gentoo.org/glsa/202003-10
vendor-advisoryx_refsource_GENTOOThird Party Advisory
https://usn.ubuntu.com/4335-1/
vendor-advisoryx_refsource_UBUNTUThird Party Advisory
https://www.cve.org/CVERecord?id=CVE-2019-11757
https://www.mozilla.org/en-US/security/advisories/mfsa2019-33/#CVE-2019-11757
https://www.mozilla.org/security/advisories/mfsa2019-33/
x_refsource_CONFIRMVendor Advisory
https://www.mozilla.org/security/advisories/mfsa2019-34/
x_refsource_CONFIRMVendor Advisory
https://www.mozilla.org/security/advisories/mfsa2019-35/
x_refsource_CONFIRMVendor Advisory

Link	Providers	Tags
https://access.redhat.com/security/cve/CVE-2019-11757		Vendor Advisory
https://bugzilla.mozilla.org/show_bug.cgi?id=1577107		x_refsource_CONFIRMIssue TrackingPermissions Required
https://bugzilla.redhat.com/show_bug.cgi?id=1764438		Issue Tracking
https://euvd.enisa.europa.eu/vulnerability/EUVD-2019-3427		Advisory
https://nvd.nist.gov/vuln/detail/CVE-2019-11757
https://security.gentoo.org/glsa/202003-10		vendor-advisoryx_refsource_GENTOOThird Party Advisory
https://usn.ubuntu.com/4335-1/		vendor-advisoryx_refsource_UBUNTUThird Party Advisory
https://www.cve.org/CVERecord?id=CVE-2019-11757
https://www.mozilla.org/en-US/security/advisories/mfsa2019-33/#CVE-2019-11757
https://www.mozilla.org/security/advisories/mfsa2019-33/		x_refsource_CONFIRMVendor Advisory
https://www.mozilla.org/security/advisories/mfsa2019-34/		x_refsource_CONFIRMVendor Advisory
https://www.mozilla.org/security/advisories/mfsa2019-35/		x_refsource_CONFIRMVendor Advisory