Buffer overflow in dhcp (Alpine package)



Published: 2019-02-09
Risk Low
Patch available YES
Number of vulnerabilities 1
CVE-ID CVE-2018-5732
CWE-ID CWE-120
Exploitation vector Network
Public exploit N/A
Vulnerable software
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dhcp (Alpine package)
Operating systems & Components / Operating system package or component

Vendor Alpine Linux Development Team

Security Bulletin

This security bulletin contains one low risk vulnerability.

1) Buffer overflow

EUVDB-ID: #VU10790

Risk: Low

CVSSv3.1: 6.5 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2018-5732

CWE-ID: CWE-120 - Buffer overflow

Exploit availability: No

Description

The vulnerability allows a remote attacker to cause DoS condition on the target system.

The weakness exists in the dhclient due to buffer overflow. A remote attacker can send specially crafted response, trigger memory corruption and cause the service to crash.

Mitigation

Install update from vendor's website.

Vulnerable software versions

dhcp (Alpine package): 4.2.0-r0 - 4.2.4_p2-r0

External links

http://git.alpinelinux.org/aports/commit/?id=9bab9a346bb17cd49c6b1e3c62b4bfbb86d31042


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.



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