Memory leak in pdns-recursor (Alpine package)
| Risk | Medium |
| Patch available | YES |
| Number of vulnerabilities | 1 |
| CVE-ID | CVE-2017-15094 |
| CWE-ID | CWE-401 |
| Exploitation vector | Network |
| Public exploit | N/A |
| Vulnerable software Subscribe |
pdns-recursor (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) Memory leak
EUVDB-ID: #VU9441
Risk: Medium
CVSSv3.1: 5.1 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:L/E:U/RL:O/RC:C]
CVE-ID: CVE-2017-15094
CWE-ID:
CWE-401 - Missing release of memory after effective lifetime
Exploit availability: No
DescriptionThe vulnerability allows a remote attacker to cause DoS condition on the target system.
The vulnerability exists due to a flaw in the DNSSEC parsing code of PowerDNS Recursor during a code audit by Nixu. A remote attacker can supply specially crafted DNSSEC ECDSA keys, parse it when validation is enabled by setting dnssec to a value other than off or process-no-validate (default), trigger memory leak and cause the service to crash.
Install update from vendor's website.
Vulnerable software versionspdns-recursor (Alpine package): 4.0.4-r0 - 4.0.9-r0
External linkshttp://git.alpinelinux.org/aports/commit/?id=c9348fdd367c1a3bd5601701acba7353ae984c3a
http://git.alpinelinux.org/aports/commit/?id=f2ae078758a3a6a9ba1068bf9d79123f305d54f8
http://git.alpinelinux.org/aports/commit/?id=cc8761a9a2849c5e5a49af8667dbea9a2aeb990d
http://git.alpinelinux.org/aports/commit/?id=0821b9aa215845c51715531d9478f41a9322f98c
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.
