Arch Linux update for unbound
| Risk | Medium |
| Patch available | YES |
| Number of vulnerabilities | 1 |
| CVE-ID | CVE-2019-16866 |
| CWE-ID | CWE-119 |
| Exploitation vector | Network |
| Public exploit | N/A |
| Vulnerable software Subscribe |
Arch Linux Operating systems & Components / Operating system |
| Vendor | Arch Linux |
Security Bulletin
This security bulletin contains one medium risk vulnerability.
1) Buffer overflow
EUVDB-ID: #VU29237
Risk: Medium
CVSSv3.1: 6.4 [CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:H/E:U/RL:O/RC:C]
CVE-ID: CVE-2019-16866
CWE-ID:
CWE-119 - Memory corruption
Exploit availability: No
DescriptionThe vulnerability allows a remote attacker to perform a denial of service (DoS) attack
The vulnerability exists due to a boundary error when processing NOTIFY queries in Unbound. A remote attacker can send a specially crafted NOTIFY query, trigger uninitialized memory access and crash the service.
Successful exploitation of this vulnerability requires that the source IP address of the query matches an access-control rule.
MitigationUpdate the affected package unbound to version 1.9.4-1.
Vulnerable software versionsArch Linux: All versions
External linkshttp://security.archlinux.org/advisory/ASA-201910-6
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.
