Ubuntu Security Notice USN-5380-1 ≈ Packet Storm

Roger Wilco Alertes 20 avril 2022 Affichages : 372

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Ubuntu Security Notice USN-5380-1^[6]: Authored by Ubuntu ^[7] | Site security.ubuntu.com ^[8]; Ubuntu Security Notice 5380-1 - It was discovered that Bash did not properly drop privileges when the binary had the setuid bit enabled. An attacker could possibly use this issue to escalate privileges.; systems | linux ^[9], ubuntu ^[10]; advisories | CVE-2019-18276 ^[11]; MD5 | 398e01895cb77f01c7efc764c91ddba7; Download ^[12] | Favorite ^[13] | View ^[14]

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Ubuntu Security Notice USN-5380-1
April 20, 2022
bash vulnerability
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A security issue affects these releases of Ubuntu and its derivatives:
- Ubuntu 20.04 LTS
- Ubuntu 18.04 LTS
- Ubuntu 16.04 ESM
- Ubuntu 14.04 ESM
Summary:
Bash could be used to escalate privileges.
Software Description:
- bash: GNU Bourne Again SHell
Details:
It was discovered that Bash did not properly drop privileges
when the binary had the setuid bit enabled. An attacker could
possibly use this issue to escalate privileges.
Update instructions:
The problem can be corrected by updating your system to the following
package versions:
Ubuntu 20.04 LTS:
bash                            5.0-6ubuntu1.2
Ubuntu 18.04 LTS:
bash                            4.4.18-2ubuntu1.3
Ubuntu 16.04 ESM:
bash                            4.3-14ubuntu1.4+esm1
Ubuntu 14.04 ESM:
bash                            4.3-7ubuntu1.8+esm2
In general, a standard system update will make all the necessary changes.
References:
https://ubuntu.com/security/notices/USN-5380-1
CVE-2019-18276
Package Information:
https://launchpad.net/ubuntu/+source/bash/5.0-6ubuntu1.2
https://launchpad.net/ubuntu/+source/bash/4.4.18-2ubuntu1.3