Security readout for executives and security teams
Plain-English summary
This Android kernel issue can let a local attacker with Android System-level privileges read data outside expected memory bounds. It is an information-disclosure problem, not described as remote code execution. The available sources do not list CVSS, a CWE, or active exploitation, so urgency should be driven by device exposure and patch status.
Executive priority
Treat this as a patch hygiene and fleet visibility issue, not an emergency remote-exploitation event. Prioritize internet-facing business units only if they rely on unmanaged or unsupported Android devices.
Technical view
CVE-2021-0605 is a missing bounds check in pfkey_dump in af_key.c. The reported impact is an out-of-bounds kernel read leading to local information disclosure. Exploitation requires System execution privileges and no user interaction. The provided sources identify Android kernel as affected but do not provide CVSS details.
Likely exposure
Exposure is most relevant to Android and Pixel devices running affected Android kernel builds before the relevant June 2021 vendor security update. Systems without Android kernel components are not indicated as affected by the provided sources.
Exploitation context
The sources do not report active exploitation, and the CVE is not marked as KEV. The required System execution privileges limit opportunistic remote risk, but kernel information disclosure can matter in chained attacks or post-compromise scenarios.
Researcher notes
Evidence is sparse: no CVSS vector, CWE, proof of exploitation, or detailed patch metadata is included in the bundle. The key technical anchors are af_key.c, pfkey_dump, missing bounds check, local information disclosure, and required System privileges.
Mitigation direction
- Apply the relevant Android or Pixel June 2021 security update or later vendor patch level.
- Check device OEM bulletins for matching kernel fixes and rollout status.
- Prioritize unsupported or unpatched Android devices for replacement or isolation.
- Avoid assuming non-Pixel Android devices are patched without OEM confirmation.
Validation and detection
- Inventory Android devices and record OS, kernel, OEM, and security patch level.
- Confirm Pixel devices have the June 2021 security bulletin fixes or later.
- Review OEM advisories for CVE-2021-0605 or Android kernel security fixes.
- Track exceptions for devices that cannot receive vendor kernel updates.
Public sources used
Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.
Conservative CVE-to-ATT&CK context
These mappings and lookup hints may be relevant to the vulnerability behavior, CWE, affected product, or exposure path. Glexia-inferred context is not an official MITRE, ATT&CK, CWE, or CVE Program mapping.
ATT&CK lookup starting points
Use these exact CWE pages and searches to review the Glexia ATT&CK library from this CVE's weakness and description context.
CVE-2021-0605 mapping review
Open the CVE-to-ATT&CK bridge for reviewed, inferred, or future official mappings tied to this CVE.
Open ATT&CK lookup- Severity
- Unknown
- CVSS
- Not scored
- Known Exploited
- No
- Published
CNA and ADP enrichment extracted from CVE v5
These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.
CVSS and timeline data
No CVSS vectors or timeline events were available in the normalized CVE source material.
Source materials
- CVE List V5 sourceCVE List V5
- https://source.android.com/security/bulletin/pixel/2021-06-01CVE reference · x_refsource_MISC
Products and packages named in the record
CWE details
CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.