NULL pointer dereference in ntpsec (Alpine package)
| Risk | Low |
| Patch available | YES |
| Number of vulnerabilities | 1 |
| CVE-ID | CVE-2019-6445 |
| CWE-ID | CWE-476 |
| Exploitation vector | Network |
| Public exploit | Public exploit code for vulnerability #1 is available. |
| Vulnerable software Subscribe |
ntpsec (Alpine package) Operating systems & Components / Operating system package or component |
| Vendor | Alpine Linux Development Team |
Security Bulletin
This security bulletin contains one low risk vulnerability.
1) NULL pointer dereference
EUVDB-ID: #VU17184
Risk: Low
CVSSv3.1: 5.9 [CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H/E:P/RL:O/RC:C]
CVE-ID: CVE-2019-6445
CWE-ID:
CWE-476 - NULL Pointer Dereference
Exploit availability: Yes
DescriptionThe vulnerability allows a remote authenticated attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to a NULL pointer dereference error. A remote authenticated attacker can trigger NULL pointer dereference and ntpd crash in ntp_control.c, related to ctl_getitem. A remote attacker can perform a denial of service (DoS) attack.
MitigationInstall update from vendor's website.
Vulnerable software versionsntpsec (Alpine package): 1.1.1-r0 - 1.1.1-r2
External linkshttp://git.alpinelinux.org/aports/commit/?id=7de1824a4c87d4bc784f18f0dd977a556e8aa641
http://git.alpinelinux.org/aports/commit/?id=8b9f93d5463c700e366a766c9d46cc26d6a14d0c
http://git.alpinelinux.org/aports/commit/?id=6e65ec77c34fcea98b3b7fbef8cb62d3b6dae0d3
Q & A
Can this vulnerability be exploited remotely?
Yes. This vulnerability can be exploited by a remote authenticated user via the Internet.
Is there known malware, which exploits this vulnerability?
No. We are not aware of malware exploiting this vulnerability. However, proof of concept for this vulnerability is available.
