openEuler update for ntp

1) Out-of-bounds write

EUVDB-ID: #VU76002

Risk: Low

CVSSv3.1: 5.6 [CVSS:3.1/AV:P/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2023-26555

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

Exploit availability: No

Description

The vulnerability allows an attacker to compromise vulnerable system.

The vulnerability exists due to a boundary error within praecis_parse() function in ntpd/refclock_palisade.c. An attacker with physical proximity to device can trigger an out-of-bounds write error by manipulating the GPS receiver and execute arbitrary code on the target system.

Mitigation

Install updates from vendor's repository.

Vulnerable software versions

openEuler: 20.03 LTS SP1 - 22.03 LTS SP1

ntp-perl: before 4.2.8p14-8

ntp-help: before 4.2.8p14-8

ntp-debuginfo: before 4.2.8p14-8

ntp-debugsource: before 4.2.8p14-8

ntp: before 4.2.8p14-8

External links

http://www.openeuler.org/en/security/security-bulletins/detail/?id=openEuler-SA-2023-1292

Q & A

Can this vulnerability be exploited remotely?

No. The attacker should have physical access to the system in order to successfully exploit this vulnerability.

Is there known malware, which exploits this vulnerability?

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