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Oracle Linux: CVE-2018-16300: ELSA-2020-4760: tcpdump security, bug fix, and enhancement update (MODERATE) (Multiple Advisories)

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Oracle Linux: CVE-2018-16300: ELSA-2020-4760: tcpdump security, bug fix, and enhancement update (MODERATE) (Multiple Advisories)

Severity
8
CVSS
(AV:N/AC:L/Au:N/C:N/I:N/A:C)
Published
10/02/2019
Created
11/14/2020
Added
11/12/2020
Modified
11/29/2024

Description

The BGP parser in tcpdump before 4.9.3 allows stack consumption in print-bgp.c:bgp_attr_print() because of unlimited recursion. An uncontrolled resource consumption flaw was discovered in the way tcpdump prints BGP packets. The BGP protocol allows ATTR_SET to be nested as many times as the message can accommodate, however when a specially crafted packet is crafted and parsed by tcpdump, this may lead to stack exhaustion due to uncontrolled recursion. System availability is the highest threat from this vulnerability.

Solution(s)

  • oracle-linux-upgrade-tcpdump

References

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