Vulnerability Name:

CCN-163596

Published:2019-07-10
Updated:2019-07-10
Summary:Microsoft Edge is vulnerable to a denial of service, caused by the use of uninitialized memory while freeing resources in var_loadavar function in the DirectWrite component. By persuading a victim to open a specially-crafted content, a remote attacker could exploit this vulnerability to cause the application to crash.
CVSS v3 Severity:3.3 Low (CCN CVSS v3.1 Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:L)
3.0 Low (CCN Temporal CVSS v3.1 Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:L/E:P/RL:U/RC:R)
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): None
Integrity (I): None
Availibility (A): Low
CVSS v2 Severity:1.7 Low (CCN CVSS v2 Vector: AV:L/AC:L/Au:S/C:N/I:N/A:P)
Exploitability Metrics:Access Vector (AV): Local
Access Complexity (AC): Low
Athentication (Au): Single_Instance
Impact Metrics:Confidentiality (C): None
Integrity (I): None
Availibility (A): Partial
Vulnerability Consequences:Denial of Service
References:Source: CCN
Type: Google Security Research: Issue 1833
Microsoft DirectWrite / AFDKO use of uninitialized memory while freeing resources in var_loadavar

Source: XF
Type: UNKNOWN
ms-edge-directwrite-dos(163596)

Source: CCN
Type: Packet Storm Security [07-10-2019]
Microsoft DirectWrite / AFDKO Uninitialized Memory Use

Source: EXPLOIT-DB
Type: EXPLOIT
Offensive Security Exploit Database [07-10-2019]

Source: CCN
Type: Microsoft Web site
Microsoft Windows

Vulnerable Configuration:Configuration CCN 1:
  • cpe:/a:microsoft:edge:*:*:*:*:*:*:*:*

    • * Denotes that component is vulnerable
    BACK
    microsoft edge *