IBM PowerPC Power9

CPE Details

IBM PowerPC Power9
ibm
powerpc_power9
-
2017-11-21
18h30 +00:00
2021-06-02
16h27 +00:00
CPE NVD
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CPE Name: cpe:2.3:h:ibm:powerpc_power9:-:*:*:*:*:*:*:*

Informations

Vendor

ibm

Product

powerpc_power9

Version

-

Related CVE

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CVE ID Published Description Score Severity
CVE-2017-1000255 2017-10-30 19h00 +00:00 On Linux running on PowerPC hardware (Power8 or later) a user process can craft a signal frame and then do a sigreturn so that the kernel will take an exception (interrupt), and use the r1 value *from the signal frame* as the kernel stack pointer. As part of the exception entry the content of the signal frame is written to the kernel stack, allowing an attacker to overwrite arbitrary locations with arbitrary values. The exception handling does produce an oops, and a panic if panic_on_oops=1, but only after kernel memory has been over written. This flaw was introduced in commit: "5d176f751ee3 (powerpc: tm: Enable transactional memory (TM) lazily for userspace)" which was merged upstream into v4.9-rc1. Please note that kernels built with CONFIG_PPC_TRANSACTIONAL_MEM=n are not vulnerable.
5.5
Medium
The information presented on CVE Find originates from several carefully selected reference sources. CVE data is provided by MITRE Corporation and the National Vulnerability Database (NVD). The Known Exploited Vulnerabilities (KEV) catalog is sourced from the Cybersecurity and Infrastructure Security Agency (CISA), while EPSS scores come from FIRST.org. Additionally, data regarding software weaknesses (CWE) and common attack patterns (CAPEC) is maintained by MITRE Corporation, and information on hardware and software configurations (CPE) is provided by the NVD.