Allocation of Resources Without Limits or Throttling in tcpdump (Alpine package)



Published: 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
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tcpdump (Alpine package)
Operating systems & Components / Operating system package or component

Vendor Alpine Linux Development Team

Security Advisory

This security advisory describes one medium risk vulnerability.

1) Allocation of Resources Without Limits or Throttling

Risk: Medium

CVSSv3: 6.5 [CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C] [PCI]

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 (Alpine package)

Alpine Linux 3.11
4.9.3-r2, 4.9.3-r1, 4.9.3-r0

Alpine Linux 3.10
4.9.3-r0

Alpine Linux 3.9
4.9.3-r0

Alpine Linux 3.8
4.9.3-r0


CPE External links

https://git.alpinelinux.org/aports/commit/?id=ee308ee825e06dfd4d8d11db01d7fd1f9f7e8692

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.