Security readout for executives and security teams
Plain-English summary
This CVE affects a Xiaomi Redmi 6 Pro custom Linux kernel LED driver. A malicious or crafted app can trigger integer overflow behavior that may cause denial of service. The public data does not provide CVSS scoring, broad product mapping, active exploitation, or a confirmed patch.
Executive priority
Treat this as a targeted mobile-device stability risk, not a confirmed enterprise-wide emergency. Prioritize if the organization manages Xiaomi Redmi 6 Pro devices with custom kernels, especially in operational or high-availability contexts.
Technical view
The issue is in drivers/leds/leds-aw2023.c for custom Xiaomi Redmi 6pro daisy-o-oss kernels. Left-shift operations may use a right-hand operand equal to or larger than the integer width, creating integer overflows. The stated impact is application-triggered denial of service.
Likely exposure
Exposure appears limited to Xiaomi Redmi 6 Pro devices or derivatives running affected daisy-o-oss custom kernels with the aw2023 LED driver. Standard enterprise Linux systems are not indicated by the provided sources.
Exploitation context
The CVE states exploitation requires a crafted application and results in denial of service. There is no KEV listing and no provided source confirms active exploitation in the wild.
Researcher notes
Public evidence is sparse: the CVE description identifies the vulnerable file, bug class, trigger type, and DoS impact, but not CVSS metrics, exact version ranges, exploit prevalence, or patch details. Avoid expanding scope beyond the named custom kernel context.
Mitigation direction
- Check MiCode and device maintainer guidance for a corrected kernel source or firmware build.
- Update affected custom kernels when a trusted patched build is available.
- Limit installation of untrusted applications on affected devices.
- Remove affected devices from sensitive operational roles until vendor guidance is clear.
Validation and detection
- Inventory Xiaomi Redmi 6 Pro devices running custom daisy-o-oss kernels.
- Confirm whether builds include drivers/leds/leds-aw2023.c.
- Review source history or maintainer notes for an overflow-related LED driver fix.
- Check device crash or reboot reports for unexplained denial-of-service symptoms.
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-2018-20788 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://github.com/MiCode/Xiaomi_Kernel_OpenSource/issues/973CVE 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.