Vulnerability Name:

CVE-2020-0009 (CCN-174168)

Assigned:2019-10-17
Published:2020-01-07
Updated:2022-10-14
Summary:In calc_vm_may_flags of ashmem.c, there is a possible arbitrary write to shared memory due to a permissions bypass. This could lead to local escalation of privilege by corrupting memory shared between processes, with no additional execution privileges needed. User interaction is not needed for exploitation. Product: Android Versions: Android kernel Android ID: A-142938932
CVSS v3 Severity:5.5 Medium (CVSS v3.1 Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N)
5.0 Medium (Temporal CVSS v3.1 Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N/E:P/RL:O/RC:C)
Exploitability Metrics:Attack Vector (AV): Local
Attack Complexity (AC): Low
Privileges Required (PR): Low
User Interaction (UI): None
Scope:Scope (S): Unchanged
Impact Metrics:Confidentiality (C): None
Integrity (I): High
Availibility (A): None
8.4 High (CCN CVSS v3.1 Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H)
7.6 High (CCN Temporal CVSS v3.1 Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:N/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): None
Scope:Scope (S): Unchanged
Impact Metrics:Confidentiality (C): High
Integrity (I): High
Availibility (A): High
CVSS v2 Severity:2.1 Low (CVSS v2 Vector: AV:L/AC:L/Au:N/C:N/I:P/A:N)
Exploitability Metrics:Access Vector (AV): Local
Access Complexity (AC): Low
Authentication (Au): None
Impact Metrics:Confidentiality (C): None
Integrity (I): Partial
Availibility (A): None
7.2 High (CCN CVSS v2 Vector: AV:L/AC:L/Au:N/C:C/I:C/A:C)
Exploitability Metrics:Access Vector (AV): Local
Access Complexity (AC): Low
Athentication (Au): None
Impact Metrics:Confidentiality (C): Complete
Integrity (I): Complete
Availibility (A): Complete
Vulnerability Type:CWE-276
Vulnerability Consequences:Gain Privileges
References:Source: CCN
Type: Google Web site
Android

Source: MITRE
Type: CNA
CVE-2020-0009

Source: MISC
Type: Patch, Third Party Advisory, VDB Entry
http://packetstormsecurity.com/files/155903/Android-ashmem-Read-Only-Bypasses.html

Source: XF
Type: UNKNOWN
android-cve20200009-priv-esc(174168)

Source: MLIST
Type: Mailing List, Third Party Advisory
[debian-lts-announce] 20200609 [SECURITY] [DLA 2241-1] linux security update

Source: MLIST
Type: Mailing List, Third Party Advisory
[debian-lts-announce] 20200610 [SECURITY] [DLA 2241-2] linux security update

Source: CCN
Type: Packet Storm Security [01-10-2020]
Android ashmem Read-Only Bypasses

Source: CCN
Type: Android Open Source Project
Android Security Bulletin—January 2020

Source: CONFIRM
Type: Vendor Advisory
https://source.android.com/security/bulletin/2020-01-01

Source: EXPLOIT-DB
Type: EXPLOIT
Offensive Security Exploit Database [01-14-2020]

Vulnerable Configuration:Configuration 1:
  • cpe:/o:google:android:-:*:*:*:*:*:*:*

    • Configuration 2:
  • cpe:/o:debian:debian_linux:8.0:*:*:*:*:*:*:*

    • Configuration CCN 1:
  • cpe:/o:google:android:*:*:*:*:*:*:*:*

    • * Denotes that component is vulnerable
    BACK
    google android -
    debian debian linux 8.0
    google android *