Stack out-of-bounds read in ntpsec (Alpine package)
| Risk | Low |
| Patch available | YES |
| Number of vulnerabilities | 1 |
| CVE-ID | CVE-2019-6444 |
| CWE-ID | CWE-125 |
| 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) Stack out-of-bounds read
EUVDB-ID: #VU17183
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-2019-6444
CWE-ID:
CWE-125 - Out-of-bounds read
Exploit availability: Yes
DescriptionThe vulnerability allows a remote authenticated attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to attacker-controlled data is dereferenced by ntohl() in ntpd. A remote attacker can trigger stack-based buffer over-read in process_control() in ntp_control.c perform a denial of service 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=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.
