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Amazon Linux AMI: CVE-2018-5381: Security patch for quagga (ALAS-2018-957)

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Amazon Linux AMI: CVE-2018-5381: Security patch for quagga (ALAS-2018-957)

Severity
5
CVSS
(AV:N/AC:L/Au:N/C:N/I:N/A:P)
Published
02/19/2018
Created
07/25/2018
Added
02/22/2018
Modified
03/02/2020

Description

The Quagga BGP daemon (bgpd) prior to version 1.2.3 has a bug in its parsing of "Capabilities" in BGP OPEN messages, in the bgp_packet.c:bgp_capability_msg_parse function. The parser can enter an infinite loop on invalid capabilities if a Multi-Protocol capability does not have a recognized AFI/SAFI, causing a denial of service.

Solution(s)

  • amazon-linux-upgrade-quagga

References

  • ALAS-2018-957
  • USN-3573-1
  • CVE-2018-5381

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