Reachable Assertion in bind (Alpine package)
| Risk | Medium |
| Patch available | YES |
| Number of vulnerabilities | 1 |
| CVE-ID | CVE-2020-8618 |
| CWE-ID | CWE-617 |
| Exploitation vector | Network |
| Public exploit | N/A |
| Vulnerable software Subscribe |
bind (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) Reachable Assertion
EUVDB-ID: #VU29184
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-2020-8618
CWE-ID:
CWE-617 - Reachable Assertion
Exploit availability: No
DescriptionThe vulnerability allows a remote attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to a reachable assertion in rdataset.c when processing large responses during zone transfers. A remote attacker with ability to send zone data to a server via zone transfer can exploit this to intentionally trigger memory corruption and assertion failure with a specially constructed zone, denying service to clients.
MitigationInstall update from vendor's website.
Vulnerable software versionsbind (Alpine package): 9.11.1-r0 - 9.14.12-r0
External linkshttp://git.alpinelinux.org/aports/commit/?id=9fd4335a39b73f3ab692a227e470c31d0fc161b1
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.
