Denial of service in nghttp2
| Risk | Low |
| Patch available | YES |
| Number of vulnerabilities | 1 |
| CVE-ID | CVE-2018-1000168 |
| CWE-ID | CWE-476 |
| Exploitation vector | Network |
| Public exploit | N/A |
| Vulnerable software Subscribe |
nghttp2 Universal components / Libraries / Libraries used by multiple products |
| Vendor | nghttp2 |
Security Bulletin
This security bulletin contains one low risk vulnerability.
1) NULL pointer dereference
EUVDB-ID: #VU11858
Risk: Low
CVSSv3.1: 4.6 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L/E:U/RL:O/RC:C]
CVE-ID: CVE-2018-1000168
CWE-ID:
CWE-476 - NULL Pointer Dereference
Exploit availability: No
DescriptionThe vulnerability allows a remote unauthenticated attacker to cause DoS condition on the target system.
The weakness exists due to improper bounds checking. If an alternative services (ALTSVC) frame is too large, the pointer field that points to the ALTSVC frame payload is left NULL. A remote attacker can submit a large ALTSVC frame, trigger a NULL pointer dereference and cause the service to crash.
MitigationUpdate to version 1.31.1.
Vulnerable software versionsnghttp2: 1.10.0 - 1.31.0
External linkshttp://nghttp2.org/blog/2018/04/12/nghttp2-v1-31-1/
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.
