Integer overflow in pdns (Alpine package)
| Risk | Medium |
| Patch available | YES |
| Number of vulnerabilities | 1 |
| CVE-ID | CVE-2016-2120 |
| CWE-ID | CWE-190 |
| Exploitation vector | Network |
| Public exploit | N/A |
| Vulnerable software Subscribe |
pdns (Alpine package) Operating systems & Components / Operating system package or component |
| Vendor | Alpine Linux Development Team |
Security Bulletin
This security bulletin contains one medium risk vulnerability.
1) Integer overflow
EUVDB-ID: #VU32138
Risk: Medium
CVSSv3.1: 5.7 [CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C]
CVE-ID: CVE-2016-2120
CWE-ID:
CWE-190 - Integer overflow
Exploit availability: No
DescriptionThe vulnerability allows a remote authenticated user to perform a denial of service (DoS) attack.
An issue has been found in PowerDNS Authoritative Server versions up to and including 3.4.10, 4.0.1 allowing an authorized user to crash the server by inserting a specially crafted record in a zone under their control then sending a DNS query for that record. The issue is due to an integer overflow when checking if the content of the record matches the expected size, allowing an attacker to cause a read past the buffer boundary.
MitigationInstall update from vendor's website.
Vulnerable software versionspdns (Alpine package): 3.4.0-r0 - 4.0.1-r1
External linkshttp://git.alpinelinux.org/aports/commit/?id=3a479b103eb9d61f344de80e8293bbc27403ce40
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.
