Bug 1805822 (CVE-2019-2215) - CVE-2019-2215 kernel: Use-after-free in binder.c
Summary: CVE-2019-2215 kernel: Use-after-free in binder.c
Keywords:
Status: CLOSED NOTABUG
Alias: CVE-2019-2215
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
medium
medium
Target Milestone: ---
Assignee: Red Hat Product Security
QA Contact:
URL:
Whiteboard:
Depends On:
Blocks: 1805823
TreeView+ depends on / blocked
 
Reported: 2020-02-21 15:38 UTC by Pedro Sampaio
Modified: 2021-09-13 09:17 UTC (History)
52 users (show)

Fixed In Version:
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Doc Text:
A flaw was found in the Linux kernel’s Android compatibility functionality. A local attacker can abuse a use-after-free flaw in the Android binder code to corrupt memory or possibly escalate privileges.
Clone Of:
Environment:
Last Closed: 2020-02-24 14:20:51 UTC
Embargoed:

Attachments (Terms of Use)

Description Pedro Sampaio 2020-02-21 15:38:34 UTC 
A use-after-free in binder.c allows an elevation of privilege from an application to the Linux Kernel. No user interaction is required to exploit this vulnerability, however exploitation does require either the installation of a malicious local application or a separate vulnerability in a network facing application.Product: AndroidAndroid ID: A-141720095

Upstream patch:

https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/drivers/android/binder.c?h=linux-4.14.y&id=7a3cee43e935b9d526ad07f20bf005ba7e74d05b

References:

https://seclists.org/fulldisclosure/2019/Oct/38
https://github.com/marcinguy/CVE-2019-2215/
https://bugs.chromium.org/p/project-zero/issues/detail?id=1942
Comment 3 Wade Mealing 2020-02-24 07:28:21 UTC 
Mitigation:

There is no mitigation required for this flaw as it does not affect shipping Red Hat Enterprise Linux kernels.
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