PT-2019-2115 · Google+1 · Android Kernel+1

Published 2019-02-28 · Updated 2022-04-22 · CVE-2019-1999

Positive Technologies (AI Summary)

CVSS v3.1

7.8

High

Base vector

AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Name of the Vulnerable Software and Affected Versions Android kernel

Description The issue is related to a double free vulnerability in the binder alloc free page function of binder alloc.c in the Android kernel. This could lead to a local escalation of privilege in the kernel without needing additional execution privileges. The vulnerability can be exploited without user interaction.

Recommendations For Android kernel, consider applying a patch to fix the improper locking issue in the binder alloc free page function as a permanent solution. As a temporary workaround, restricting access to the kernel's binder alloc module may help minimize the risk of exploitation. At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Exploit

Double Free

Weakness Enumeration

CWE-415

Related Identifiers

BDU:2019-01872

CVE-2019-1999

DSA-4495-1

USN-3979-1

Affected Products

Android Kernel

Ubuntu

References · 23

• 🔥 https://exploit-db.com/exploits/46357 · Exploit
• https://cve.org/CVERecord?id=CVE-2019-1999 · Security Note
• https://ubuntu.com/security/CVE-2019-1999 · Vendor Advisory
• https://security-tracker.debian.org/tracker/CVE-2019-1999 · Vendor Advisory
• https://source.android.com/security/bulletin/2019-02-01 · Vendor Advisory
• https://usn.ubuntu.com/3979-1 · Vendor Advisory
• https://ubuntu.com/security/notices/USN-3979-1 · Vendor Advisory
• https://osv.dev/vulnerability/DEBIAN-CVE-2019-1999 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2019-1999 · Security Note
• https://osv.dev/vulnerability/CVE-2019-1999 · Vendor Advisory
• https://bdu.fstec.ru/vul/2019-01872 · Security Note
• https://debian.org/security/2019/dsa-4495 · Vendor Advisory
• https://osv.dev/vulnerability/UBUNTU-CVE-2019-1999 · Vendor Advisory
• https://osv.dev/vulnerability/DSA-4495-1 · Vendor Advisory
• https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-1999 · Note