CVE-2020-26088: Medium severity Linux Linux kernel vulnerability

Published Sep 24, 2020
·
Updated

A missing CAPNETRAW check in NFC socket creation in net/nfc/rawsock.c in the Linux kernel before 5.8.2 could be used by local attackers to create raw sockets, bypassing security mechanisms, aka CID-26896f01467a.

Affected Software

8 affected componentsFixes available
Linux Linux kernel<5.8.2
Debian Debian Linux=9.0
openSUSE Leap=15.1
openSUSE Leap=15.2
Canonical Ubuntu Linux=14.04
Canonical Ubuntu Linux=16.04
Canonical Ubuntu Linux=18.04
debian/linux
5.10.223-15.10.262-16.1.176-16.1.180-16.12.94-16.12.101-17.1.7-17.1.8-1

Remediation

Recommended actions to resolve this vulnerability, in priority order.

  1. Upgrade

    Upgrade debian/linux to a version that resolves this vulnerability.

    Fixed in 5.10.223-1Fixed in 5.10.262-1Fixed in 6.1.176-1Fixed in 6.1.180-1Fixed in 6.12.94-1Fixed in 6.12.101-1Fixed in 7.1.7-1Fixed in 7.1.8-1
  2. Upgrade

    Upgrade Linux kernel to a version that resolves this vulnerability.

    Fixed in 5.8.2Patch CID-26896f01467a

Event History

Sep 24, 2020
CVE Published
via MITRE·02:06 PM
Data Sourced
via MITRE·02:06 PM
Description
Data Sourced
via NVD·03:15 PM
RemedyDescriptionSeverityWeaknessAffected Software
Jan 11, 2024
Data Sourced
via Launchpad·11:47 PM
Description
Aug 12, 2026
Data Sourced
via Debian·04:23 PM
DescriptionAffected Software
Aug 14, 2026
Data Sourced
via Ubuntu·04:24 PM
RemedyDescriptionSeverityAffected Software
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Frequently Asked Questions

1

What is the severity of CVE-2020-26088?

The severity of CVE-2020-26088 is considered medium, as it allows local attackers to bypass security mechanisms.

2

How do I fix CVE-2020-26088?

To fix CVE-2020-26088, update the Linux kernel to version 5.8.2 or later.

3

Which systems are affected by CVE-2020-26088?

CVE-2020-26088 affects various Linux kernel versions prior to 5.8.2, including certain Debian and openSUSE versions.

4

Can CVE-2020-26088 be exploited remotely?

CVE-2020-26088 requires local access to the machine for exploitation, as it involves creating raw sockets.

5

What is the impact of CVE-2020-26088?

The impact of CVE-2020-26088 includes the potential for local users to create raw sockets and bypass security controls.

Contact

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