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Sicherheit: Mangelnde Rechteprüfung in TCMU
Aktuelle Meldungen Distributionen
Name: Mangelnde Rechteprüfung in TCMU
ID: USN-4707-1
Distribution: Ubuntu
Plattformen: Ubuntu 20.04 LTS, Ubuntu 20.10
Datum: Do, 28. Januar 2021, 16:10
Referenzen: https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-3139
Applikationen: Open-iSCSI

Originalnachricht


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==========================================================================
Ubuntu Security Notice USN-4707-1
January 28, 2021

tcmu vulnerability
==========================================================================

A security issue affects these releases of Ubuntu and its derivatives:

- Ubuntu 20.10
- Ubuntu 20.04 LTS

Summary:

tcmu could be made to crash if it received specially crafted
input.

Software Description:
- tcmu: TCM-Userspace backend

Details:

It was discovered that TCMU lacked a check for transport-layer restrictions,
allowing remote attackers to read or write files via directory traversal in
an XCOPY request.

Update instructions:

The problem can be corrected by updating your system to the following
package versions:

Ubuntu 20.10:
libtcmu2 1.5.2-5ubuntu0.20.10.1
tcmu-runner 1.5.2-5ubuntu0.20.10.1

Ubuntu 20.04 LTS:
libtcmu2 1.5.2-5ubuntu0.20.04.1
tcmu-runner 1.5.2-5ubuntu0.20.04.1

In general, a standard system update will make all the necessary changes.

References:
https://usn.ubuntu.com/4707-1
CVE-2021-3139

Package Information:
https://launchpad.net/ubuntu/+source/tcmu/1.5.2-5ubuntu0.20.10.1
https://launchpad.net/ubuntu/+source/tcmu/1.5.2-5ubuntu0.20.04.1

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