CVE-2016-5828

Kernel: powerpc: tm: crash via exec system call on PPC

Severity Score

7.8

*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

The start_thread function in arch/powerpc/kernel/process.c in the Linux kernel through 4.6.3 on powerpc platforms mishandles transactional state, which allows local users to cause a denial of service (invalid process state or TM Bad Thing exception, and system crash) or possibly have unspecified other impact by starting and suspending a transaction before an exec system call.

La función start_thread en arch/powerpc/kernel/process.c en el kernel de Linux hasta la versión 4.6.3 en plataformas powerpc no maneja adecuadamente el estado transaccional, lo que permite a usuarios locales provocar una denegación de servicio (estado de proceso inválido o excepción TM Bad Thing y caída de sistema) o posiblemente tener otro impacto no especificado iniciando y suspendiendo una transacción antes de una llamada de sistema exec.

A vulnerability in the handling of Transactional Memory on powerpc systems was found. An unprivileged local user can crash the kernel by starting a transaction, suspending it, and then calling any of the exec() class system calls.

*Credits: N/A

CVSS Scores

Attack Vector

Local

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

Attack Vector

Local

Attack Complexity

High

Privileges Required

None

User Interaction

None

Scope

Changed

Confidentiality

None

Integrity

None

Availability

High

Attack Vector

Local

Attack Complexity

Low

Authentication

None

Confidentiality

Complete

Integrity

Complete

Availability

Complete

Attack Vector

Local

Attack Complexity

High

Authentication

None

Confidentiality

None

Integrity

None

Availability

Complete

* Common Vulnerability Scoring System

SSVC

Decision:-

Exploitation

Automatable

Tech. Impact

* Organization's Worst-case Scenario

Timeline

2016-06-23 CVE Reserved
2016-06-27 CVE Published
2023-03-08 EPSS Updated
2024-08-06 CVE Updated
---------- Exploited in Wild
---------- KEV Due Date
---------- First Exploit

CWE

CWE-20: Improper Input Validation

CAPEC

References (16)

URL	Tag	Source
http://www.openwall.com/lists/oss-security/2016/06/25/7	Mailing List
http://www.securityfocus.com/bid/91415	Third Party Advisory

URL	Date	SRC

URL	Date	SRC
https://patchwork.ozlabs.org/patch/636776	2023-01-17

URL	Date	SRC
http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00000.html	2023-01-17
http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00044.html	2023-01-17
http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00055.html	2023-01-17
http://rhn.redhat.com/errata/RHSA-2016-2574.html	2023-01-17
http://www.debian.org/security/2016/dsa-3616	2023-01-17
http://www.ubuntu.com/usn/USN-3070-1	2023-01-17
http://www.ubuntu.com/usn/USN-3070-2	2023-01-17
http://www.ubuntu.com/usn/USN-3070-3	2023-01-17
http://www.ubuntu.com/usn/USN-3070-4	2023-01-17
http://www.ubuntu.com/usn/USN-3071-1	2023-01-17
http://www.ubuntu.com/usn/USN-3071-2	2023-01-17
https://access.redhat.com/security/cve/CVE-2016-5828	2016-11-03
https://bugzilla.redhat.com/show_bug.cgi?id=1349917	2016-11-03

Affected Vendors, Products, and Versions

Vendor		Product				Version		Other		Status
Vendor	Product	Version	Other	Status	<-- -->	Vendor	Product	Version	Other	Status
Linux Search vendor "Linux"		Linux Kernel Search vendor "Linux" for product "Linux Kernel"				>= 3.9 < 3.10.103 Search vendor "Linux" for product "Linux Kernel" and version " >= 3.9 < 3.10.103"		-		Affected
Linux Search vendor "Linux"		Linux Kernel Search vendor "Linux" for product "Linux Kernel"				>= 3.11 < 3.14.74 Search vendor "Linux" for product "Linux Kernel" and version " >= 3.11 < 3.14.74"		-		Affected
Linux Search vendor "Linux"		Linux Kernel Search vendor "Linux" for product "Linux Kernel"				>= 3.15 < 3.16.37 Search vendor "Linux" for product "Linux Kernel" and version " >= 3.15 < 3.16.37"		-		Affected
Linux Search vendor "Linux"		Linux Kernel Search vendor "Linux" for product "Linux Kernel"				>= 3.17 < 3.18.37 Search vendor "Linux" for product "Linux Kernel" and version " >= 3.17 < 3.18.37"		-		Affected
Linux Search vendor "Linux"		Linux Kernel Search vendor "Linux" for product "Linux Kernel"				>= 3.19 < 4.1.28 Search vendor "Linux" for product "Linux Kernel" and version " >= 3.19 < 4.1.28"		-		Affected
Linux Search vendor "Linux"		Linux Kernel Search vendor "Linux" for product "Linux Kernel"				>= 4.2 < 4.4.16 Search vendor "Linux" for product "Linux Kernel" and version " >= 4.2 < 4.4.16"		-		Affected
Linux Search vendor "Linux"		Linux Kernel Search vendor "Linux" for product "Linux Kernel"				>= 4.6 < 4.6.5 Search vendor "Linux" for product "Linux Kernel" and version " >= 4.6 < 4.6.5"		-		Affected
Novell Search vendor "Novell"		Suse Linux Enterprise Real Time Extension Search vendor "Novell" for product "Suse Linux Enterprise Real Time Extension"				12 Search vendor "Novell" for product "Suse Linux Enterprise Real Time Extension" and version "12"		sp1		Affected
Debian Search vendor "Debian"		Debian Linux Search vendor "Debian" for product "Debian Linux"				8.0 Search vendor "Debian" for product "Debian Linux" and version "8.0"		-		Affected
Canonical Search vendor "Canonical"		Ubuntu Linux Search vendor "Canonical" for product "Ubuntu Linux"				12.04 Search vendor "Canonical" for product "Ubuntu Linux" and version "12.04"		-		Affected
Canonical Search vendor "Canonical"		Ubuntu Linux Search vendor "Canonical" for product "Ubuntu Linux"				14.04 Search vendor "Canonical" for product "Ubuntu Linux" and version "14.04"		esm		Affected
Canonical Search vendor "Canonical"		Ubuntu Linux Search vendor "Canonical" for product "Ubuntu Linux"				16.04 Search vendor "Canonical" for product "Ubuntu Linux" and version "16.04"		esm		Affected