CVE-2018-9515 — In sdcardfs_create and sdcardfs_mkdir of inode

In sdcardfs_create and sdcardfs_mkdir of inode.c, there is a possible memory corruption due to improper locking. This could lead to local escalation of privilege with no additional execution privileges needed. User interaction is not needed for exploitation. Product: Android Vers

01What is this vulnerability?

In sdcardfs_create and sdcardfs_mkdir of inode.c, there is a possible memory corruption due to improper locking. This could lead to local escalation of privilege with no additional execution privileges needed. User interaction is not needed for exploitation. Product: Android Versions: Android kernel Android ID: A-111641492 References: N/A

02Affected products

Vendor	Product	Versions
Google Inc.	Android	Android kernel

03Active exploitation status

Not currently listed on the CISA Known Exploited Vulnerabilities (KEV) catalog. EPSS is the best forward-looking signal — see the EPSS row above.

04Recommended remediation

• Patch to a fixed version listed in the vendor advisory (see references below).
• Mitigate with WAF rules, network egress filters, or feature flags where the patch is not yet available.
• Hunt historical logs for exploitation indicators — see Detection signatures below.

05Technical details

For the full vendor write-up, exploit chains, and reference implementations, see the references list in section 09.

06Detection signatures

Ask SARA in chat to draft a starting detection for this CVE in your stack of choice.

07Related CVEs

No directly-cited follow-up CVEs in the KB record for this advisory. The references list in section 09 carries the vendor cross-references.

08Timeline

• Published: 2018-10-02T19:00:00.000Z
• Last modified: 2024-09-16T21:07:52.862Z

09References

• www.exploit-db.com — https://www.exploit-db.com/exploits/45558/
• www.securityfocus.com — http://www.securityfocus.com/bid/105483
• source.android.com — https://source.android.com/security/bulletin/2018-10-01