Vulnerability Name:

CVE-2016-3986 (CCN-111305)

Assigned:2015-12-09
Published:2015-12-09
Updated:2016-04-18
Summary:Avast allows remote attackers to cause a denial of service (memory corruption) and possibly execute arbitrary code via a crafted PE file, related to authenticode parsing.
CVSS v3 Severity:7.8 High (CVSS v3.1 Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H)
7.0 High (Temporal CVSS v3.1 Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H/E:P/RL:O/RC:C)
Exploitability Metrics:Attack Vector (AV): Local
Attack Complexity (AC): Low
Privileges Required (PR): None
User Interaction (UI): Required
Scope:Scope (S): Unchanged
Impact Metrics:Confidentiality (C): High
Integrity (I): High
Availibility (A): High
6.3 Medium (CCN CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:L)
5.7 Medium (CCN Temporal CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:L/E:P/RL:O/RC:C)
Exploitability Metrics:Attack Vector (AV): Network
Attack Complexity (AC): Low
Privileges Required (PR): None
User Interaction (UI): Required
Scope:Scope (S): Unchanged
Impact Metrics:Confidentiality (C): Low
Integrity (I): Low
Availibility (A): Low
CVSS v2 Severity:9.3 High (CVSS v2 Vector: AV:N/AC:M/Au:N/C:C/I:C/A:C)
Exploitability Metrics:Access Vector (AV): Network
Access Complexity (AC): Medium
Authentication (Au): None
Impact Metrics:Confidentiality (C): Complete
Integrity (I): Complete
Availibility (A): Complete
6.5 Medium (CCN CVSS v2 Vector: AV:N/AC:L/Au:S/C:P/I:P/A:P)
Exploitability Metrics:Access Vector (AV): Network
Access Complexity (AC): Low
Athentication (Au): Single_Instance
Impact Metrics:Confidentiality (C): Partial
Integrity (I): Partial
Availibility (A): Partial
Vulnerability Type:CWE-119
Vulnerability Consequences:Gain Access
References:Source: MITRE
Type: CNA
CVE-2016-3986

Source: MISC
Type: Exploit
http://packetstormsecurity.com/files/136090/Avast-Authenticode-Parsing-Memory-Corruption.html

Source: CCN
Type: Avast! Web Site
Avast! Antivirus

Source: MISC
Type: UNKNOWN
https://code.google.com/p/google-security-research/issues/detail?id=668

Source: CCN
Type: Google Security Research Issue 668
Avast: authenticode parsing memory corruption

Source: XF
Type: UNKNOWN
avast-antivirus-pe-code-exec(111305)

Source: CCN
Type: Packet Storm Security [03-05-2016]
Avast Authenticode Parsing Memory Corruption

Source: EXPLOIT-DB
Type: EXPLOIT
Offensive Security Exploit Database [03-07-2016]

Source: EXPLOIT-DB
Type: Exploit
39530

Vulnerable Configuration:Configuration 1:
  • cpe:/a:avast:avast:-:*:*:*:*:*:*:*

    • Configuration CCN 1:
  • cpe:/a:avas!t:avast!_antivirus:4.6.394:*:*:*:*:*:*:*

    • * Denotes that component is vulnerable
    BACK
    avast avast -
    avas!t avast! antivirus 4.6.394