Fedora 30 update for nsd
| Risk | High |
| Patch available | YES |
| Number of vulnerabilities | 1 |
| CVE-ID | CVE-2019-13207 |
| CWE-ID | CWE-121 |
| Exploitation vector | Network |
| Public exploit | Public exploit code for vulnerability #1 is available. |
| Vulnerable software |
Fedora Operating systems & Components / Operating system nsd Operating systems & Components / Operating system package or component |
| Vendor | Fedoraproject |
Security Bulletin
This security bulletin contains one high risk vulnerability.
1) Stack-based buffer overflow
EUVDB-ID: #VU20963
Risk: High
CVSSv4.0: 7.8 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:H/SC:N/SI:N/SA:N/E:P/U:Amber]
CVE-ID: CVE-2019-13207
CWE-ID:
CWE-121 - Stack-based buffer overflow
Exploit availability: No
DescriptionThe vulnerability allows a remote attacker to execute arbitrary code or cause a denial of service (DoS) condition on a targeted system.
The vulnerability exists due to a boundary error in the "dname_concatenate()" function in "dname.c" file. A remote unauthenticated attacker can send a specially crafted request, trigger stack-based buffer overflow and crash the target application or execute arbitrary code on the target system.
Install updates from vendor's repository.
Vulnerable software versionsFedora: 30
nsd: before 4.2.2-1.fc30
CPE2.3 External linkshttps://bodhi.fedoraproject.org/updates/FEDORA-2019-96fe76e02b
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. However, proof of concept for this vulnerability is available.
