Vulnerability Details : CVE-2019-17021
Potential exploit
During the initialization of a new content process, a race condition occurs that can allow a content process to disclose heap addresses from the parent process. *Note: this issue only occurs on Windows. Other operating systems are unaffected.*. This vulnerability affects Firefox ESR < 68.4 and Firefox < 72.
Products affected by CVE-2019-17021
- cpe:2.3:a:mozilla:firefox:*:*:*:*:*:*:*:*
- cpe:2.3:a:mozilla:firefox_esr:*:*:*:*:*:*:*:*
- cpe:2.3:o:opensuse:leap:15.1:*:*:*:*:*:*:*
Exploit prediction scoring system (EPSS) score for CVE-2019-17021
0.50%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 63 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2019-17021
| Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
|---|---|---|---|---|---|---|
|
2.6
|
LOW | AV:N/AC:H/Au:N/C:P/I:N/A:N |
4.9
|
2.9
|
NIST | |
|
5.3
|
MEDIUM | CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:N/A:N |
1.6
|
3.6
|
NIST |
CWE ids for CVE-2019-17021
-
The product contains a concurrent code sequence that requires temporary, exclusive access to a shared resource, but a timing window exists in which the shared resource can be modified by another code sequence operating concurrently.Assigned by: nvd@nist.gov (Primary)
References for CVE-2019-17021
-
https://seclists.org/bugtraq/2020/Jan/18
Bugtraq: [slackware-security] mozilla-thunderbird (SSA:2020-010-01)Mailing List;Third Party Advisory
-
http://lists.opensuse.org/opensuse-security-announce/2020-01/msg00043.html
[security-announce] openSUSE-SU-2020:0094-1: important: Security updateMailing List;Third Party Advisory
-
https://www.mozilla.org/security/advisories/mfsa2020-01/
Security Vulnerabilities fixed in Firefox 72 — MozillaVendor Advisory
-
https://bugzilla.mozilla.org/show_bug.cgi?id=1599008
Access DeniedExploit;Issue Tracking;Permissions Required
-
http://packetstormsecurity.com/files/155912/Slackware-Security-Advisory-mozilla-thunderbird-Updates.html
Slackware Security Advisory - mozilla-thunderbird Updates ≈ Packet StormExploit;Third Party Advisory;VDB Entry
-
https://www.mozilla.org/security/advisories/mfsa2020-02/
Security Vulnerabilities fixed in Firefox ESR 68.4 — MozillaVendor Advisory
-
http://lists.opensuse.org/opensuse-security-announce/2020-01/msg00029.html
[security-announce] openSUSE-SU-2020:0060-1: important: Security updateMailing List;Third Party Advisory
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