OpenSUSE Linux update for systemd



| Updated: 2023-03-28
Risk High
Patch available YES
Number of vulnerabilities 2
CVE-ID CVE-2018-15686
CVE-2018-15688
CWE-ID CWE-264
CWE-787
Exploitation vector Network
Public exploit N/A
Vulnerable software
 Opensuse
Operating systems & Components / Operating system

Vendor SUSE

Security Bulletin

This security bulletin contains information about 2 vulnerabilities.

1) Privilege escalation

EUVDB-ID: #VU15675

Risk: Low

CVSSv4.0: 8.1 [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/E:U/U:Clear]

CVE-ID: CVE-2018-15686

CWE-ID: CWE-264 - Permissions, Privileges, and Access Controls

Exploit availability: No

Description

The vulnerability allows a remote attacker to gain elevated privileges on the target system.

The weakness exists due to an error in unit_deserialize of systemd. A remote attacker can supply arbitrary state across systemd re-execution via NotifyAccess and gain root privileges.

Mitigation

Update the affected packages.

Vulnerable software versions

Opensuse: 15.0

CPE2.3 External links

https://lists.opensuse.org/opensuse-security-announce/2018-11/msg00007.html


Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.

2) Heap out-of-bounds write

EUVDB-ID: #VU15555

Risk: High

CVSSv4.0: 8.1 [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/E:U/U:Amber]

CVE-ID: CVE-2018-15688

CWE-ID: CWE-787 - Out-of-bounds write

Exploit availability: No

Description

The vulnerability allows a remote attacker to cause DoS condition or execute arbitrary code with elevated privileges.

The weakness exists within the written-from-scratch DHCPv6 client of the open-source Systemd management suite due to an out-of-bounds heap write in the DHCPv6 client when handling options sent by network adjacent DHCP servers. A remote attacker can supply maliciously crafted DHCPv6 packets, exploit the programming cockup, arbitrarily change parts of memory to crash or execute arbitrary code on the vulnerable Systemd-powered Linux machines.

Mitigation

Update the affected packages.

Vulnerable software versions

Opensuse: 15.0

CPE2.3 External links

https://lists.opensuse.org/opensuse-security-announce/2018-11/msg00007.html


Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.



###SIDEBAR###