Paper/Archive/CVE-2022-4291

CVE-2022-4291

NortonLifelock Avast Antivirus — Aswjsflt.dll in Avast Antivirus windows caused a crash of the Mozilla Firefox browser due to heap corruption

EPSS 0.4%CVSS 10.0

critical.is priorityof 100

CVSS 10.0 (NVD)10.0 / 10 × 3030.0 Not in CISA KEV+300.0 EPSS percentile 39.1.391 × 207.8 No public exploit+100.0 SSVC exploitation: none+100.0

Description · from the CVE record

The aswjsflt.dll library from Avast Antivirus windows contained a potentially exploitable heap corruption vulnerability that could enable an attacker to bypass the sandbox of the application it was loaded into, if applicable. This issue was fixed in version 18.0.1478 of the Script Shield Component.

Affected

ProductAffectedFixed inSource

Avast Antivirus≤ 18.0.1473.0–CNA

Scores by source

NVD10.0CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H

NLOK (CNA)7.7CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:L

CISA ADPSSVCExploitation: none · Automatable: no · Technical impact: partial

References

refsupport.norton.com/sp/static/external/tools/security-advisories.html