Headline
Ubuntu Security Notice USN-5966-3
Ubuntu Security Notice 5966-3 - USN-5966-1 fixed vulnerabilities in amanda. Unfortunately that update caused a regression and was reverted in USN-5966-2. This update provides security fixes for Ubuntu 22.10, Ubuntu 22.04 LTS, Ubuntu 20.04 LTS and Ubuntu 18.04 LTS.
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Ubuntu Security Notice USN-5966-3
April 03, 2023
amanda regression
A security issue affects these releases of Ubuntu and its derivatives:
- Ubuntu 22.10
- Ubuntu 22.04 LTS
- Ubuntu 20.04 LTS
- Ubuntu 18.04 LTS
Summary:
Several security issues were fixed in amanda.
Software Description:
- amanda: Advanced Maryland Automatic Network Disk Archiver (Client)
Details:
USN-5966-1 fixed vulnerabilities in amanda. Unfortunately that update
caused a regression and was reverted in USN-5966-2. This update provides
security fixes for Ubuntu 22.10, Ubuntu 22.04 LTS, Ubuntu 20.04
LTS and Ubuntu 18.04 LTS.
We apologize for the inconvenience.
Original advisory details:
Maher Azzouzi discovered an information disclosure vulnerability in the
calcsize binary within amanda. calcsize is a suid binary owned by root that
could possibly be used by a malicious local attacker to expose sensitive
file system information. (CVE-2022-37703)
Maher Azzouzi discovered a privilege escalation vulnerability in the
rundump binary within amanda. rundump is a suid binary owned by root that
did not perform adequate sanitization of environment variables or
commandline options and could possibly be used by a malicious local
attacker to escalate privileges. (CVE-2022-37704)
Maher Azzouzi discovered a privilege escalation vulnerability in the runtar
binary within amanda. runtar is a suid binary owned by root that did not
perform adequate sanitization of commandline options and could possibly be
used by a malicious local attacker to escalate privileges. (CVE-2022-37705)
Update instructions:
The problem can be corrected by updating your system to the following
package versions:
Ubuntu 22.10:
amanda-client 1:3.5.1-9ubuntu0.3
Ubuntu 22.04 LTS:
amanda-client 1:3.5.1-8ubuntu1.3
Ubuntu 20.04 LTS:
amanda-client 1:3.5.1-2ubuntu0.3
Ubuntu 18.04 LTS:
amanda-client 1:3.5.1-1ubuntu0.3
In general, a standard system update will make all the necessary changes.
References:
https://ubuntu.com/security/notices/USN-5966-3
https://ubuntu.com/security/notices/USN-5966-1
https://launchpad.net/bugs/2012536
CVE-2022-37703, CVE-2022-37704, CVE-2022-37705
Package Information:
https://launchpad.net/ubuntu/+source/amanda/1:3.5.1-9ubuntu0.3
https://launchpad.net/ubuntu/+source/amanda/1:3.5.1-8ubuntu1.3
https://launchpad.net/ubuntu/+source/amanda/1:3.5.1-2ubuntu0.3
https://launchpad.net/ubuntu/+source/amanda/1:3.5.1-1ubuntu0.3
Related news
Ubuntu Security Notice 5966-2 - USN-5966-1 fixed vulnerabilities in amanda. Unfortunately it introduced a regression in GNUTAR-based backups. This update reverts all of the changes in amanda until a better fix is provided. Maher Azzouzi discovered an information disclosure vulnerability in the calcsize binary within amanda. calcsize is a suid binary owned by root that could possibly be used by a malicious local attacker to expose sensitive file system information.
Ubuntu Security Notice 5966-2 - USN-5966-1 fixed vulnerabilities in amanda. Unfortunately it introduced a regression in GNUTAR-based backups. This update reverts all of the changes in amanda until a better fix is provided. Maher Azzouzi discovered an information disclosure vulnerability in the calcsize binary within amanda. calcsize is a suid binary owned by root that could possibly be used by a malicious local attacker to expose sensitive file system information.
Ubuntu Security Notice 5966-2 - USN-5966-1 fixed vulnerabilities in amanda. Unfortunately it introduced a regression in GNUTAR-based backups. This update reverts all of the changes in amanda until a better fix is provided. Maher Azzouzi discovered an information disclosure vulnerability in the calcsize binary within amanda. calcsize is a suid binary owned by root that could possibly be used by a malicious local attacker to expose sensitive file system information.
Ubuntu Security Notice 5966-1 - Maher Azzouzi discovered an information disclosure vulnerability in the calcsize binary within amanda. calcsize is a suid binary owned by root that could possibly be used by a malicious local attacker to expose sensitive file system information. Maher Azzouzi discovered a privilege escalation vulnerability in the rundump binary within amanda. rundump is a suid binary owned by root that did not perform adequate sanitization of environment variables or commandline options and could possibly be used by a malicious local attacker to escalate privileges.
Ubuntu Security Notice 5966-1 - Maher Azzouzi discovered an information disclosure vulnerability in the calcsize binary within amanda. calcsize is a suid binary owned by root that could possibly be used by a malicious local attacker to expose sensitive file system information. Maher Azzouzi discovered a privilege escalation vulnerability in the rundump binary within amanda. rundump is a suid binary owned by root that did not perform adequate sanitization of environment variables or commandline options and could possibly be used by a malicious local attacker to escalate privileges.
Ubuntu Security Notice 5966-1 - Maher Azzouzi discovered an information disclosure vulnerability in the calcsize binary within amanda. calcsize is a suid binary owned by root that could possibly be used by a malicious local attacker to expose sensitive file system information. Maher Azzouzi discovered a privilege escalation vulnerability in the rundump binary within amanda. rundump is a suid binary owned by root that did not perform adequate sanitization of environment variables or commandline options and could possibly be used by a malicious local attacker to escalate privileges.
In Amanda 3.5.1, an information leak vulnerability was found in the calcsize SUID binary. An attacker can abuse this vulnerability to know if a directory exists or not anywhere in the fs. The binary will use `opendir()` as root directly without checking the path, letting the attacker provide an arbitrary path.