Input validation error in systemd - CVE-2017-1000082

Vulnerability identifier: #VU29540

CSH Severity: Low

CVSS v4: 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]

CVE-ID: CVE-2017-1000082

CWE-ID: CWE-20

Exploitation vector: Local access

Exploit availability: No public exploit available

The vulnerability allows a local user to escalate privileges on the system.

The vulnerability exists due to systemd fails to safely parse usernames starting with a numeric digit (e.g. "0day"), running the service in question with root privileges rather than the user intended.

systemd
systemd-udev
systemd-tests
systemd-pam
systemd-libs
systemd-journal-remote
systemd-devel
systemd-container
systemd-help
systemd-debuginfo
systemd-debugsource
systemd-udev-compat
Anolis OS
openEuler

Install updates from vendor's website.

systemd - update to 234
systemd-udev - update to 239-31.0.1
systemd-tests - update to 239-31.0.1
systemd-pam - update to 239-31.0.1
systemd-libs - update to 239-31.0.1
systemd-journal-remote - update to 239-31.0.1
systemd-devel - update to 239-31.0.1
systemd-container - update to 239-31.0.1
systemd - update to 239-31.0.1
systemd-help - update to 243-50
systemd - update to 243-50
systemd-udev - update to 243-50
systemd-debuginfo - update to 243-50
systemd-debugsource - update to 243-50
systemd-udev-compat - update to 243-50
systemd-libs - update to 243-50
systemd-journal-remote - update to 243-50
systemd-devel - update to 243-50
systemd-container - update to 243-50

• http://www.openwall.com/lists/oss-security/2017/07/02/1
• http://www.securityfocus.com/bid/99507
• http://www.securitytracker.com/id/1038839
• https://github.com/systemd/systemd/issues/6237

• Privilege escalation in systemd
• openEuler update for systemd
• Anolis OS update for systemd