Vulnerability Report

CVE-2020-20118

Title: Avast Antivirus Memory Corruption

Memory Corruption

Proof Of Concept

No public PoC currently indexed for CVE-2020-20118.

CWE Category CWE-120

Published Date Jul 11, 2023

Modified Date Nov 21, 2024

Exploit Status Not Found

Score 5.5 CVSS v3.1

Exploit Probability (EPSS)

0.04%

Vulnerability Summary

CVE-2020-20118: Buffer Overflow vulnerability in Avast AntiVirus before v.19.7 allows a local attacker to cause a denial of service via a crafted request to the aswSnx.sys driver.

Impacted Vendors

trustix 1

avast 1

Reference Links

http://avast.com https://gitlab.com/yongchuank/avast-aswsnx-ioctl-82ac0060-oob-write http://avast.com https://gitlab.com/yongchuank/avast-aswsnx-ioctl-82ac0060-oob-write

CVSS v3.1

Source Entity [email protected]

Severity MEDIUM

5.5

Attack Vector

LOCAL

Complexity

LOW

Privileges

N/A

Interaction

NONE

Confidentiality

N/A

Integrity

N/A

Availability

N/A

Scope

UNCHANGED

RAW VECTOR CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Associated Attack Patterns (CAPEC)

Total: Patterns

CVE-2020-20118 Exploits & PoCs (Proof Of Concept)

No public PoCs found in our database for this CVE.

November 21, 2024 MODIFIED

Vulnerability data or affected products updated.

July 11, 2023 PUBLISHED

Vulnerability first announced in NVD.

Attack Vector Matrix

Access Vector LOCAL

Complexity LOW

Privileges N/A

Interaction NONE

CVSS Vector String


                                    CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Affected Stack

No specific products linked.