Allocation of Resources Without Limits or Throttling in Tcpdump



Published: 2020-11-04 | Updated: 2020-11-21
Risk Medium
Patch available YES
Number of vulnerabilities 1
CVE-ID CVE-2020-8037
CWE-ID CWE-770
Exploitation vector Network
Public exploit N/A
Vulnerable software
Subscribe 		Tcpdump
Server applications / DLP, anti-spam, sniffers

Vendor Tcpdump.org

Security Bulletin

This security bulletin contains one medium risk vulnerability.

1) Allocation of Resources Without Limits or Throttling

EUVDB-ID: #VU48587

Risk: Medium

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-2020-8037

CWE-ID: CWE-770 - Allocation of Resources Without Limits or Throttling

Exploit availability: No

Description

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

The ppp decapsulator in tcpdump 4.9.3 can be convinced to allocate a large amount of memory.

Mitigation

Install update from vendor's website.

Vulnerable software versions

Tcpdump: 4.9.3

External links

http://github.com/the-tcpdump-group/tcpdump/commit/32027e199368dad9508965aae8cd8de5b6ab5231
http://lists.debian.org/debian-lts-announce/2020/11/msg00018.html


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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