Infinite loop in tcpdump (Alpine package)



Risk Medium
Patch available YES
Number of vulnerabilities 1
CVE-ID CVE-2018-16300
CWE-ID CWE-835
Exploitation vector Network
Public exploit N/A
Vulnerable software
tcpdump (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) Infinite loop

EUVDB-ID: #VU22019

Risk: Medium

CVSSv4.0: 4.6 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Green]

CVE-ID: CVE-2018-16300

CWE-ID: CWE-835 - Loop with Unreachable Exit Condition ('Infinite Loop')

Exploit availability: No

Description

The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.

The vulnerability exists due to infinite loop in print-bgp.c:bgp_attr_print() function in the BPG parser. A remote attacker can pass specially crafted data to the affected application, consume all available system resources and cause denial of service conditions.

Mitigation

Install update from vendor's website.

Vulnerable software versions

tcpdump (Alpine package): 4.9.2-r4

CPE2.3 External links

http://git.alpinelinux.org/aports/commit/?id=dd5d221102dfcc65b44c43c915d134e830e8d599
http://git.alpinelinux.org/aports/commit/?id=552c3620773db0fb6a4d1e714eaa49b6a16de052
http://git.alpinelinux.org/aports/commit/?id=e3e3e3952958b31bf6f3e01e6c73b30e3e126745


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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