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5.5
MEDIUM CVSS 3.0
CVE-2018-1091
Linux PowerPC CPU Pointer PoC Denial of Service
Description

In the flush_tmregs_to_thread function in arch/powerpc/kernel/ptrace.c in the Linux kernel before 4.13.5, a guest kernel crash can be triggered from unprivileged userspace during a core dump on a POWER host due to a missing processor feature check and an erroneous use of transactional memory (TM) instructions in the core dump path, leading to a denial of service.

INFO

Published Date :

March 27, 2018, 9:29 p.m.

Last Modified :

Nov. 21, 2024, 3:59 a.m.

Remotely Exploit :

No

Source :

[email protected]
Affected Products

The following products are affected by CVE-2018-1091 vulnerability. Even if cvefeed.io is aware of the exact versions of the products that are affected, the information is not represented in the table below.

ID Vendor Product Action
1 Linux linux_kernel
: Total Affected Vendor : 1 | Products : 1
CVSS Scores
The Common Vulnerability Scoring System is a standardized framework for assessing the severity of vulnerabilities in software and systems. We collect and displays CVSS scores from various sources for each CVE.
Score Version Severity Vector Exploitability Score Impact Score Source
CVSS 2.0 MEDIUM [email protected]
CVSS 3.0 MEDIUM [email protected]
Solution
A vulnerability in the Linux kernel can lead to a denial of service; updating the kernel is required to address this issue.
  • Update the Linux kernel packages.
  • Reboot the system.
References to Advisories, Solutions, and Tools

Here, you will find a curated list of external links that provide in-depth information, practical solutions, and valuable tools related to CVE-2018-1091.

URL Resource
http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=c1fa0768a8713b135848f78fd43ffc208d8ded70 Patch Vendor Advisory
http://openwall.com/lists/oss-security/2018/03/27/4 Mailing List Third Party Advisory
https://access.redhat.com/errata/RHSA-2018:1318
https://access.redhat.com/security/cve/cve-2018-1091 Third Party Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=1558149 Issue Tracking Third Party Advisory
https://github.com/torvalds/linux/commit/c1fa0768a8713b135848f78fd43ffc208d8ded70 Patch Third Party Advisory
https://marc.info/?l=linuxppc-embedded&m=150535531910494&w=2 Patch Third Party Advisory
https://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.13.5 Patch Vendor Advisory
http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=c1fa0768a8713b135848f78fd43ffc208d8ded70 Patch Vendor Advisory
http://openwall.com/lists/oss-security/2018/03/27/4 Mailing List Third Party Advisory
https://access.redhat.com/errata/RHSA-2018:1318
https://access.redhat.com/security/cve/cve-2018-1091 Third Party Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=1558149 Issue Tracking Third Party Advisory
https://github.com/torvalds/linux/commit/c1fa0768a8713b135848f78fd43ffc208d8ded70 Patch Third Party Advisory
https://marc.info/?l=linuxppc-embedded&m=150535531910494&w=2 Patch Third Party Advisory
https://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.13.5 Patch Vendor Advisory
CWE - Common Weakness Enumeration

While CVE identifies specific instances of vulnerabilities, CWE categorizes the common flaws or weaknesses that can lead to vulnerabilities. CVE-2018-1091 is associated with the following CWEs:

Common Attack Pattern Enumeration and Classification (CAPEC)

Common Attack Pattern Enumeration and Classification (CAPEC) stores attack patterns, which are descriptions of the common attributes and approaches employed by adversaries to exploit the CVE-2018-1091 weaknesses.

CAPEC-8: Buffer Overflow in an API Call Buffer Overflow in an API Call CAPEC-9: Buffer Overflow in Local Command-Line Utilities Buffer Overflow in Local Command-Line Utilities CAPEC-10: Buffer Overflow via Environment Variables Buffer Overflow via Environment Variables CAPEC-14: Client-side Injection-induced Buffer Overflow Client-side Injection-induced Buffer Overflow CAPEC-24: Filter Failure through Buffer Overflow Filter Failure through Buffer Overflow CAPEC-42: MIME Conversion MIME Conversion CAPEC-44: Overflow Binary Resource File Overflow Binary Resource File CAPEC-45: Buffer Overflow via Symbolic Links Buffer Overflow via Symbolic Links CAPEC-46: Overflow Variables and Tags Overflow Variables and Tags CAPEC-47: Buffer Overflow via Parameter Expansion Buffer Overflow via Parameter Expansion CAPEC-100: Overflow Buffers Overflow Buffers CAPEC-123: Buffer Manipulation Buffer Manipulation

We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).

Results are limited to the first 15 repositories due to potential performance issues.

The following list is the news that have been mention CVE-2018-1091 vulnerability anywhere in the article.

Results are limited to the first 20 news articles due to potential performance issues.

The following table lists the changes that have been made to the CVE-2018-1091 vulnerability over time.

Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.

  • CVE Modified by af854a3a-2127-422b-91ae-364da2661108

    Nov. 21, 2024

    Action Type Old Value New Value
    Added Reference http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=c1fa0768a8713b135848f78fd43ffc208d8ded70
    Added Reference http://openwall.com/lists/oss-security/2018/03/27/4
    Added Reference https://access.redhat.com/errata/RHSA-2018:1318
    Added Reference https://access.redhat.com/security/cve/cve-2018-1091
    Added Reference https://bugzilla.redhat.com/show_bug.cgi?id=1558149
    Added Reference https://github.com/torvalds/linux/commit/c1fa0768a8713b135848f78fd43ffc208d8ded70
    Added Reference https://marc.info/?l=linuxppc-embedded&m=150535531910494&w=2
    Added Reference https://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.13.5
  • CVE Modified by [email protected]

    May. 14, 2024

    Action Type Old Value New Value
  • CVE Modified by [email protected]

    Oct. 09, 2019

    Action Type Old Value New Value
    Added CWE Red Hat, Inc. CWE-391
  • CVE Modified by [email protected]

    May. 10, 2018

    Action Type Old Value New Value
    Added Reference https://access.redhat.com/errata/RHSA-2018:1318 [No Types Assigned]
  • Initial Analysis by [email protected]

    Apr. 24, 2018

    Action Type Old Value New Value
    Added CVSS V2 (AV:L/AC:L/Au:N/C:N/I:N/A:C)
    Added CVSS V3 AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
    Changed Reference Type http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=c1fa0768a8713b135848f78fd43ffc208d8ded70 No Types Assigned http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=c1fa0768a8713b135848f78fd43ffc208d8ded70 Patch, Vendor Advisory
    Changed Reference Type http://openwall.com/lists/oss-security/2018/03/27/4 No Types Assigned http://openwall.com/lists/oss-security/2018/03/27/4 Mailing List, Third Party Advisory
    Changed Reference Type https://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.13.5 No Types Assigned https://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.13.5 Patch, Vendor Advisory
    Changed Reference Type https://github.com/torvalds/linux/commit/c1fa0768a8713b135848f78fd43ffc208d8ded70 No Types Assigned https://github.com/torvalds/linux/commit/c1fa0768a8713b135848f78fd43ffc208d8ded70 Patch, Third Party Advisory
    Changed Reference Type https://access.redhat.com/security/cve/cve-2018-1091 No Types Assigned https://access.redhat.com/security/cve/cve-2018-1091 Third Party Advisory
    Changed Reference Type https://marc.info/?l=linuxppc-embedded&m=150535531910494&w=2 No Types Assigned https://marc.info/?l=linuxppc-embedded&m=150535531910494&w=2 Patch, Third Party Advisory
    Changed Reference Type https://bugzilla.redhat.com/show_bug.cgi?id=1558149 No Types Assigned https://bugzilla.redhat.com/show_bug.cgi?id=1558149 Issue Tracking, Third Party Advisory
    Added CWE CWE-119
    Added CPE Configuration OR *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions up to (including) 4.13.4
  • CVE Modified by [email protected]

    Mar. 28, 2018

    Action Type Old Value New Value
    Removed Reference https://marc.info/?l=linuxppc-embedded&m=150535531910494&w=2 [No Types Assigned]
    Added Reference https://marc.info/?l=linuxppc-embedded&m=150535531910494&w=2 [No Types Assigned]
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days. Following chart shows the EPSS score history of the vulnerability.
Vulnerability Scoring Details
Base CVSS Score: 5.5
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality Impact
Integrity Impact
Availability Impact
Base CVSS Score: 4.9
Access Vector
Access Complexity
Authentication
Confidentiality Impact
Integrity Impact
Availability Impact
Exploit Prediction

EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.

0.05 }} -0.03%

score

0.15782

percentile