SB2016041826 - Race condition in Google, Google Android

Description

This security bulletin contains information about 1 vulnerability.

1) Race condition (CVE-ID: CVE-2016-0848)

CWE-ID: CWE-362 - Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')

CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Amber

The vulnerability allows a remote non-authenticated attacker to execute arbitrary code.

Race condition in Download Manager in Android 4.x before 4.4.4, 5.0.x before 5.0.2, 5.1.x before 5.1.1, and 6.x before 2016-04-01 allows attackers to bypass private-storage file-access restrictions via a crafted application that changes a symlink target, as demonstrated by obtaining Signature or SignatureOrSystem access, aka internal bug 26211054.

Remediation

Install update from vendor's website.

References

• http://source.android.com/security/bulletin/2016-04-02.html
• https://android.googlesource.com/platform/packages/providers/DownloadProvider/+/bdc831357e7a116bc561d51bf2ddc85ff11c01a9