CVE-2019-17026
firefox-esr - security update
8.8
HIGH
CVSS 3.1
⚠ KEVEPSS 56.2%
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.
How to fix CVE-2019-17026
To remediate CVE-2019-17026, upgrade the affected package to a fixed version below.
- —upgrade to 68.4.1esr-1 or later
- —upgrade to 68.4.1esr-1~deb8u1 or later
- —upgrade to 1:68.4.1-1 or later
Is CVE-2019-17026 being exploited?
Yes — CVE-2019-17026 is on the CISA Known Exploited Vulnerabilities (KEV) catalog. Patch immediately.
Affected packages (3)
- from 0, < 68.4.1esr-1
- from 0, < 68.4.1esr-1~deb8u1
- from 0, < 1:68.4.1-1
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | HIGH8.8 | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H |