Home/CVE/Android Kernel Out-of-Bounds Write Vulnerability
CVE

CVE-2020-0041

Android Kernel Out-of-Bounds Write Vulnerability

In binder_transaction of binder.c, there is a possible out of bounds write due to an incorrect bounds check. This could lead to local escalation of privilege with no additional execution privileges needed. User interaction is not needed for exploitation.Product: AndroidVersions: Android kernelAndroid ID: A-145988638References: Upstream kernel.

HIGH · CVSS 7.8 ⚠ CISA KEV EPSS 0.03246
Act now
  • Listed on CISA KEV (known exploited in the wild)
  • SSVC exploitation status: active
  • Public exploit or PoC is available
  • CVSS base score ≥ 7.0
Sigma rules0 YARA rules0
Look this up elsewhere - one-click external pivots
NVDCVE.orgCISAVulnersExploit-DBGitHub PoCVulnCheck KEVGreyNoise
▸ How to read a CVE - triage first, then detect and patch
This page is every public fact about CVE-2020-0041, cross-linked. Its job is to answer one question fast - does this need my attention now? - and then hand you the two things you do about it. Here is how an analyst reads it.
Triage: should I act now? Four signals, and they are not interchangeable:
CVSSseverity - how bad it is IF exploited, 0-10. A high CVSS alone is not urgency; a flaw can be a perfect 10 and never actually be attacked. EPSSprobability - a model’s estimate of the chance it is exploited in the next 30 days, 0-1. This is the “will it actually happen” signal. CISA KEVconfirmed - it is being exploited in the wild right now. The strongest signal on the page; KEV beats any score. Weaponisedavailability - public exploits / PoCs, and especially Metasploit modules rated Excellent / Great. Reliable, packaged exploit code means low-skill attackers can use it today.
How they combine: KEV, or a dependable Metasploit module, means patch now regardless of CVSS. High CVSS + low EPSS + no exploit is real but not an emergency - schedule it. Low CVSS but KEV-listed still gets patched now. The verdict above already weighed these for you; this is how it got there.
Then what - two workflows:
Detectwhen you cannot patch today, follow this CVE to the ATT&CK techniques it enables, then Build a SIEM detection (the green button) - author a rule, test it in Atomic, deploy it. That buys visibility while the patch waits. PatchAffected products / packages tell you if you are exposed; Fixed versions by distribution and Vendor advisories give the exact version that closes it.
Reading order for the panels below: verdict + badges, then Public exploits / Metasploit (is it weaponised), then ATT&CK techniques + Sigma / IDS rules (can I detect it), then Affected products / packages + Fixed versions (am I exposed, what patches it), then Threat actors / IOCs (who uses it), then Scoring & timeline / references (the evidence).
⬢

Required Remediation

Apply updates per vendor instructions.

◆

ATT&CK techniques

7

Techniques this CVE enables - linked via CWECAPECATT&CK. High◆ = named directly in ATT&CK or Nuclei templates.

T1027 · Obfuscated Files or Information T1036.001 · Invalid Code Signature T1539 · Steal Web Session Cookie T1553.002 · Code Signing T1562.003 · Impair Command History Logging T1574.006 · Dynamic Linker Hijacking T1574.007 · Path Interception by PATH Environment Variable
▤ Build a SIEM detection for these techniques
▤

CAPEC attack patterns

12

Attack patterns this CVE enables - the bridge from weakness to ATT&CK technique.

CAPEC-CAPEC-10 · Buffer Overflow via Environment Variables CAPEC-CAPEC-101 · Server Side Include (SSI) Injection CAPEC-CAPEC-104 · Cross Zone Scripting CAPEC-CAPEC-108 · Command Line Execution through SQL Injection CAPEC-CAPEC-109 · Object Relational Mapping Injection CAPEC-CAPEC-110 · SQL Injection through SOAP Parameter Tampering CAPEC-CAPEC-120 · Double Encoding CAPEC-CAPEC-13 · Subverting Environment Variable Values CAPEC-CAPEC-135 · Format String Injection CAPEC-CAPEC-136 · LDAP Injection CAPEC-CAPEC-14 · Client-side Injection-induced Buffer Overflow CAPEC-CAPEC-153 · Input Data Manipulation
⬡

Weakness Classification

CWE-20Improper Input Validation
CWE-20Improper Input Validation
▤

Affected Products & Versions

1
google androidall versions
▤

Affected Packages

40
Language-ecosystem packages (from OSV) tied to this CVE, with the version that fixes it - the dependency-level detail NVD doesn’t carry.
Ubuntu:16.04:LTS linux fixed in 4.2.0-16.19
Ubuntu:16.04:LTS linux-aws fixed in 4.4.0-1001.10
Ubuntu:16.04:LTS linux-aws-hwe fixed in 4.15.0-1030.31~16.04.1
Ubuntu:16.04:LTS linux-azure fixed in 4.11.0-1009.9
Ubuntu:16.04:LTS linux-gcp fixed in 4.10.0-1004.4
Ubuntu:16.04:LTS linux-hwe fixed in 4.8.0-36.36~16.04.1
Ubuntu:16.04:LTS linux-kvm fixed in 4.4.0-1004.9
Ubuntu:16.04:LTS linux-oracle fixed in 4.15.0-1007.9~16.04.1
Ubuntu:16.04:LTS linux-raspi2 fixed in 4.2.0-1013.19
Ubuntu:16.04:LTS linux-snapdragon fixed in 4.4.0-1012.12
Ubuntu:18.04:LTS linux fixed in 4.13.0-16.19
Ubuntu:18.04:LTS linux-aws fixed in 4.15.0-1001.1
Ubuntu:18.04:LTS linux-aws-5.0 fixed in 5.0.0-1021.24~18.04.1
Ubuntu:18.04:LTS linux-azure fixed in 4.15.0-1002.2
Ubuntu:18.04:LTS linux-azure-5.3 fixed in 5.3.0-1013.14~18.04.1
Ubuntu:18.04:LTS linux-gcp fixed in 4.15.0-1001.1
Ubuntu:18.04:LTS linux-gcp-5.3 fixed in 5.3.0-1012.13~18.04.1
Ubuntu:18.04:LTS linux-gke-4.15 fixed in 4.15.0-1030.32
Ubuntu:18.04:LTS linux-gke-5.0 fixed in 5.0.0-1011.11~18.04.1
Ubuntu:18.04:LTS linux-gke-5.3 fixed in 5.3.0-1012.13~18.04.1
Ubuntu:18.04:LTS linux-hwe fixed in 5.3.0-40.32~18.04.1
Ubuntu:18.04:LTS linux-kvm fixed in 4.15.0-1002.2
Ubuntu:18.04:LTS linux-oem fixed in 4.15.0-1002.3
Ubuntu:18.04:LTS linux-oem-osp1 fixed in 5.0.0-1010.11
Ubuntu:18.04:LTS linux-oracle fixed in 4.15.0-1007.9
Ubuntu:18.04:LTS linux-oracle-5.0 fixed in 5.0.0-1007.12~18.04.1
Ubuntu:18.04:LTS linux-oracle-5.3 fixed in 5.3.0-1011.12~18.04.1
Ubuntu:18.04:LTS linux-raspi2 fixed in 4.13.0-1005.5
Ubuntu:18.04:LTS linux-raspi2-5.3 fixed in 5.3.0-1018.20~18.04.1
Ubuntu:18.04:LTS linux-snapdragon fixed in 4.4.0-1077.82
Ubuntu:20.04:LTS linux fixed in 5.4.0-18.22
Ubuntu:20.04:LTS linux-aws fixed in 5.4.0-1005.5
Ubuntu:20.04:LTS linux-azure fixed in 5.4.0-1006.6
Ubuntu:20.04:LTS linux-gcp fixed in 5.4.0-1005.5
Ubuntu:20.04:LTS linux-kvm fixed in 5.4.0-1004.4
Ubuntu:20.04:LTS linux-oem-5.6 fixed in 5.6.0-1007.7
Ubuntu:20.04:LTS linux-oracle fixed in 5.4.0-1005.5
Ubuntu:20.04:LTS linux-raspi fixed in 5.4.0-1007.7
Ubuntu:20.04:LTS linux-raspi2 fixed in 5.4.0-1004.4
Ubuntu:20.04:LTS linux-riscv fixed in 5.4.0-24.28
⚠

Public Exploits & PoCs

15
These PoC and exploit links come from public sources and are not verified to be safe or functional. Review the code before running anything, and treat unverified entries as untrusted. Signed-in users rate each one out of 10 (does it actually work) and can flag malware.
pocbluefrostsecurity/CVE-2020-0041 (nomi-sec)
no ratings yet
pocj4nn/CVE-2020-0041 (nomi-sec)
no ratings yet
pocjcalabres/root-exploit-pixel3 (nomi-sec)
no ratings yet
pocvaginessa/CVE-2020-0041-Pixel-3a (nomi-sec)
no ratings yet
pockoharin/CVE-2020-0041 (nomi-sec)
no ratings yet
poc0x4ymn/PENTESTING_BIBLE (trickest)
no ratings yet
poc0x7n6/BIBLE (trickest)
no ratings yet
poc0xMarcio/cve (trickest)
no ratings yet
poc0xT11/CVE-POC (trickest)
no ratings yet
poc0xZipp0/BIBLE (trickest)
no ratings yet
pocARPSyndicate/cvemon (trickest)
no ratings yet
pocAshadowkhan/PENTESTINGBIBLE (trickest)
no ratings yet
pocBlackTom900131/awesome-game-security (trickest)
no ratings yet
pocCVEDB/PoC-List (trickest)
no ratings yet
pocCVEDB/awesome-cve-repo (trickest)
no ratings yet
▣

Scoring & Timeline

7.8
HIGH · CVSS v3.1 · [email protected]
View on NVD
Attack Vector
Network Adjacent Local Physical
Attack Complexity
Low High
Privileges Required
None Low High
User Interaction
None Required
Scope
Unchanged Changed
Confidentiality
None Low High
Integrity
None Low High
Availability
None Low High
Published to NVD10 Mar 2020 · 08:15 PM
CVSS VectorCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
SSVC triage · cisa-vulnrichment
Exploitation
active
Automatable
no
Technical impact
total
SSVC asks the questions that actually drive patch urgency: is it being exploited, can attacks be automated, and how total is the impact.
⚑

Vendor Advisories

2
cisaKEV-CVE-2020-0041
android-securityANDROID-2020-03-01High
🔗

References & Sources

2
Source URLs (vendor pages, mailing lists, write-ups). Exploit/PoC links are in their own section above to avoid duplication.
https://source.android.com/security/bulletin/2020-03-01Vendor Advisory
https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2020-0041Third Party AdvisoryUS Government Resource
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