Vulnerability Name:

CCN-48420

Published:2009-01-30
Updated:2009-01-30
Summary:OpenBSD is vulnerable to a denial of service, caused by an error when processing malformed BGP UPDATE messages. By sending a specially-crafted BGP UPDATE message containing an invalid AS4_PATH, a remote attacker could exploit this vulnerability to cause a BGP session to stop responding, resulting in a denial of service.
CVSS v3 Severity:5.3 Medium (CCN CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L)
Exploitability Metrics:Attack Vector (AV): Network
Attack Complexity (AC): Low
Privileges Required (PR): None
User Interaction (UI): None
Scope:Scope (S): Unchanged
Impact Metrics:Confidentiality (C): None
Integrity (I): None
Availibility (A): Low
CVSS v2 Severity:5.0 Medium (CCN CVSS v2 Vector: AV:N/AC:L/Au:N/C:N/I:N/A:P)
3.7 Low (CCN Temporal CVSS v2 Vector: AV:N/AC:L/Au:N/C:N/I:N/A:P/E:U/RL:OF/RC:C)
Exploitability Metrics:Access Vector (AV): Network
Access Complexity (AC): Low
Athentication (Au): None
Impact Metrics:Confidentiality (C): None
Integrity (I): None
Availibility (A): Partial
Vulnerability Consequences:Denial of Service
References:Source: CCN
Type: SA33752
OpenBSD BGP UPDATE Message Denial of Service Vulnerability

Source: CCN
Type: OpenBSD CVS Repository
src/usr.sbin/bgpd/rde.c - view - 1.230.2.1

Source: CCN
Type: OpenBSD 4.3 errata
009: RELIABILITY FIX: January 30, 2009

Source: CCN
Type: OpenBSD 4.4 errata
009: RELIABILITY FIX: January 30, 2009

Source: CCN
Type: OSVDB ID: 52270
OpenBSD BGP UPDATE Message Malformed AS4_PATH Remote DoS

Source: CCN
Type: BID-33553
OpenBSD BGP UPDATE Message Remote Denial of Service Vulnerability

Source: XF
Type: UNKNOWN
openbsd-bgpupdate-dos(48420)

Vulnerable Configuration:Configuration CCN 1:
  • cpe:/o:openbsd:openbsd:4.3:*:*:*:*:*:*:*
  • OR cpe:/o:openbsd:openbsd:4.4:*:*:*:*:*:*:*

  • * Denotes that component is vulnerable
    BACK
    openbsd openbsd 4.3
    openbsd openbsd 4.4