CVE-2019-17026 - Mozilla: IonMonkey type confusion with StoreElementHole and FallibleStoreElement

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HIGH KEV

Mozilla: IonMonkey type confusion with StoreElementHole and FallibleStoreElement

Published Mar 2, 2020 ·Due May 3, 2022

8.8

HIGH

CVSS 3.1

EPSS 46.31%

Description

Incorrect alias information in IonMonkey JIT compiler for setting array elements could lead to a type confusion. We are aware of targeted attacks in the wild abusing this flaw. This vulnerability affects Firefox ESR < 68.4.1, Thunderbird < 68.4.1, and Firefox < 72.0.1.

Affected products

Vendor Mozilla Product Firefox Default
n/a
- Version
  unspecified
  Status
  affected
  Constraints
  <72.0.1
Vendor Mozilla Product Firefox ESR Default
n/a
- Version
  unspecified
  Status
  affected
  Constraints
  <68.4.1
Vendor Mozilla Product Thunderbird Default
n/a
- Version
  unspecified
  Status
  affected
  Constraints
  <68.4.1

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
unspecified	affected	<72.0.1

Mozilla

Firefox ESR

n/a

Version	Status	Constraints
unspecified	affected	<68.4.1

Mozilla

Thunderbird

n/a

Version	Status	Constraints
unspecified	affected	<68.4.1

Red Hat Enterprise Linux 6

firefox-0:68.4.1-1.el6_10

Fixed · RHSA-2020:0086
Red Hat Enterprise Linux 6

thunderbird-0:68.4.1-2.el6_10

Fixed · RHSA-2020:0123
Red Hat Enterprise Linux 7

firefox-0:68.4.1-1.el7_7

Fixed · RHSA-2020:0085
Red Hat Enterprise Linux 7

thunderbird-0:68.4.1-2.el7_7

Fixed · RHSA-2020:0120
Red Hat Enterprise Linux 8

firefox-0:68.4.1-1.el8_1

Fixed · RHSA-2020:0111
Red Hat Enterprise Linux 8

thunderbird-0:68.4.1-2.el8_1

Fixed · RHSA-2020:0127
Red Hat Enterprise Linux 8.0 Update Services for SAP Solutions

firefox-0:68.4.1-1.el8_0

Fixed · RHSA-2020:0295
Red Hat Enterprise Linux 8.0 Update Services for SAP Solutions

thunderbird-0:68.4.1-2.el8_0

Fixed · RHSA-2020:0292
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-0:68.4.1-1.el6_10	Fixed	RHSA-2020:0086
Red Hat Enterprise Linux 6	thunderbird-0:68.4.1-2.el6_10	Fixed	RHSA-2020:0123
Red Hat Enterprise Linux 7	firefox-0:68.4.1-1.el7_7	Fixed	RHSA-2020:0085
Red Hat Enterprise Linux 7	thunderbird-0:68.4.1-2.el7_7	Fixed	RHSA-2020:0120
Red Hat Enterprise Linux 8	firefox-0:68.4.1-1.el8_1	Fixed	RHSA-2020:0111
Red Hat Enterprise Linux 8	thunderbird-0:68.4.1-2.el8_1	Fixed	RHSA-2020:0127
Red Hat Enterprise Linux 8.0 Update Services for SAP Solutions	firefox-0:68.4.1-1.el8_0	Fixed	RHSA-2020:0295
Red Hat Enterprise Linux 8.0 Update Services for SAP Solutions	thunderbird-0:68.4.1-2.el8_0	Fixed	RHSA-2020:0292
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-843

References (14)

http://packetstormsecurity.com/files/162568/Firefox-72-IonMonkey-JIT-Type-Confusion.html
x_refsource_MISCExploitThird Party AdvisoryVDB Entry
https://access.redhat.com/security/cve/CVE-2019-17026
Vendor Advisory
https://bugzilla.mozilla.org/show_bug.cgi?id=1607443
x_refsource_MISCIssue Tracking
https://bugzilla.redhat.com/show_bug.cgi?id=1789214
Issue Tracking
https://euvd.enisa.europa.eu/vulnerability/EUVD-2019-7500
Advisory
https://nvd.nist.gov/vuln/detail/CVE-2019-17026
https://security.gentoo.org/glsa/202003-02
vendor-advisoryx_refsource_GENTOOThird Party Advisory
https://usn.ubuntu.com/4335-1/
vendor-advisoryx_refsource_UBUNTUThird Party Advisory
https://www.cisa.gov/known-exploited-vulnerabilities-catalog
https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2019-17026
government-resourceUS Government Resource
https://www.cve.org/CVERecord?id=CVE-2019-17026
https://www.mozilla.org/en-US/security/advisories/mfsa2020-03/#CVE-2019-17026
https://www.mozilla.org/security/advisories/mfsa2020-03/
x_refsource_MISCVendor Advisory
https://www.mozilla.org/security/advisories/mfsa2020-04/
x_refsource_MISCVendor Advisory

Link	Providers	Tags
http://packetstormsecurity.com/files/162568/Firefox-72-IonMonkey-JIT-Type-Confusion.html		x_refsource_MISCExploitThird Party AdvisoryVDB Entry
https://access.redhat.com/security/cve/CVE-2019-17026		Vendor Advisory
https://bugzilla.mozilla.org/show_bug.cgi?id=1607443		x_refsource_MISCIssue Tracking
https://bugzilla.redhat.com/show_bug.cgi?id=1789214		Issue Tracking
https://euvd.enisa.europa.eu/vulnerability/EUVD-2019-7500		Advisory
https://nvd.nist.gov/vuln/detail/CVE-2019-17026
https://security.gentoo.org/glsa/202003-02		vendor-advisoryx_refsource_GENTOOThird Party Advisory
https://usn.ubuntu.com/4335-1/		vendor-advisoryx_refsource_UBUNTUThird Party Advisory
https://www.cisa.gov/known-exploited-vulnerabilities-catalog
https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2019-17026		government-resourceUS Government Resource
https://www.cve.org/CVERecord?id=CVE-2019-17026
https://www.mozilla.org/en-US/security/advisories/mfsa2020-03/#CVE-2019-17026
https://www.mozilla.org/security/advisories/mfsa2020-03/		x_refsource_MISCVendor Advisory
https://www.mozilla.org/security/advisories/mfsa2020-04/		x_refsource_MISCVendor Advisory