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CVE-2019-17005

HIGH
8.8
CVSS Score
Published: January 8, 2020 at 09:14 PM UTC
Updated: June 17, 2026 at 02:23 AM UTC
5 products affected across 3 vendorsUbuntu LinuxFirefoxThunderbird

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Severity
HIGH8.8
Exploit prediction
EPSS 2%

Description

The plain text serializer used a fixed-size array for the number of <ol> elements it could process; however it was possible to overflow the static-sized array leading to memory corruption and a potentially exploitable crash. This vulnerability affects Thunderbird < 68.3, Firefox ESR < 68.3, and Firefox < 71.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Ubuntu Linux· Canonicalrubygems
95%
16.0418.0419.10
Firefox· Mozilla
95%
v < 71v < 71.0
Affected range stops below 71, so it looks safe — our inference, not a vendor statement
Affected range stops below 71.0, so it looks safe — our inference, not a vendor statement
Firefox ESR· Mozilla
95%
v < 68.3
Affected range stops below 68.3, so it looks safe — our inference, not a vendor statement
Thunderbird· Mozilla
95%
v < 68.3
Affected range stops below 68.3, so it looks safe — our inference, not a vendor statement
Leap· openSUSEdrupal
95%
15.1

References (12)

Vendor Advisoryx_refsource_SUSEIssue TrackingThird Party Advisory
Source: [email protected]
http://lists.opensuse.org/opensuse-security-announce/2020-01/msg00000.html
Vendor Advisoryx_refsource_SUSEIssue TrackingThird Party Advisory
Source: [email protected]
http://lists.opensuse.org/opensuse-security-announce/2020-01/msg00001.html
Vendor Advisoryx_refsource_REDHATThird Party Advisory
Source: [email protected]
https://access.redhat.com/errata/RHSA-2020:0292
Vendor Advisoryx_refsource_REDHATThird Party Advisory
Source: [email protected]
https://access.redhat.com/errata/RHSA-2020:0295
x_refsource_MISCExploitIssue TrackingVendor Advisory
Source: [email protected]
https://bugzilla.mozilla.org/show_bug.cgi?id=1584170
Vendor Advisoryx_refsource_GENTOOThird Party Advisory
Source: [email protected]
https://security.gentoo.org/glsa/202003-02
Vendor Advisoryx_refsource_GENTOOThird Party Advisory
Source: [email protected]
https://security.gentoo.org/glsa/202003-10
Vendor Advisoryx_refsource_UBUNTUThird Party Advisory
Source: [email protected]
https://usn.ubuntu.com/4241-1/

CVSS

8.8HIGH[email protected]
Attack Vector
NETWORK
Complexity
LOW
Privileges
NONE
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
HIGH
Availability
HIGH
Vector?

Quick Info

StatusMODIFIED
CWE
CWE-787

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