SB2021031554 - Ubuntu update for puppet
Published: March 15, 2021 Updated: October 31, 2026
Security Bulletin ID
SB2021031554
CSH Severity
High
Patch available
YES
Number of vulnerabilities
2
Exploitation vector
Remote access
Highest impact
Code execution
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 2 vulnerabilities.
1) Privilege escalation (CVE-ID: CVE-2017-10689)
CWE-ID: CWE-264 - Permissions, Privileges, and Access Controls
CVSSv4: 9.3 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H]
The vulnerability allows a local attacker to execute arbitrary code on the target system.
The weakness exists due to incorrectly handled permissions when unpacking certain tarballs. A local attacker can supply specially crafted, execute arbitrary code and compromise the vulnerable system.
2) Deserialization of untrusted data (CVE-ID: CVE-2017-2295)
CWE-ID: CWE-502 - Deserialization of Untrusted Data
CVSSv4: 9.3 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N]
The vulnerability allows a remote attacker to compromise vulnerable system.
The vulnerability exists due to the application performs YAML deserialization in an unsafe manner. A remote attacker can send to server specially crafted serialized data and execute arbitrary code on the target system.
Remediation
Install update from vendor's website.