IBM Support

High Impact / Highly Pervasive APARs IJ44513/IJ44047

Notification


Risk classification

HIPER (High Impact and/or Pervasive)

Risk categories

System Outage

Abstract

Possible system crashes processing network traffic
UPDATE: The table of ifixes has been updated to include the conflicting kernel and TCP/IP kernel extension security vulnerability fixes from: https://www.ibm.com/support/pages/node/6847947

Description

IBM has seen multiple issues processing normal network traffic on recent code levels (affected levels listed below). Several timing-related issues can occur, including but not limited to:

  • System crashes when routes expire due to dynamic routing
  • Memory leaks or crashes when the cached_routes feature is enabled on AIX. (# no -o cached_routes)
  • System crashes due to synchronization issues between threads referencing the route entry in TCP/IP code



 

Recommended Action

Affected AIX/VIOS Levels and Recommended Fixes

Minimum Affected Level Maximum Affected Level Fixing Level Interim Fix Interim Fix (includes sec. vuln. Fixes)*
AIX 7300-01-00
bos.net.tcp.client_core 7.3.1.0
bos.mp64 7.3.1.0
AIX 7300-01-01-2246
bos.net.tcp.client_core 7.3.1.1
bos.mp64 7.3.1.1
AIX 7300-01-02
APAR
 iFix iFix
AIX 7300-00-00
bos.net.tcp.client_core 7.3.0.0
bos.mp64 7.3.0.0
AIX 7300-00-03-2246
bos.net.tcp.client_core 7.3.0.3
bos.mp64 7.3.0.4
AIX 7300-00-04
 iFix iFix
AIX 7200-05-03-2135
bos.net.tcp.client_core 7.2.5.100
bos.mp64 7.2.5.100
AIX 7200-05-05-2246
bos.net.tcp.client_core 7.2.5.201
bos.mp64 7.2.5.201
AIX 7200-05-06
 iFix iFix
AIX 7100-05-09-2135
bos.net.tcp.client 7.1.5.38
bos.mp64 7.1.5.43
AIX 7100-05-11-2246
bos.net.tcp.client 7.1.5.42
bos.mp64 7.1.5.47
AIX 7100-05-12
 iFix iFix
VIOS 3.1.4.0
bos.net.tcp.client_core 7.2.5.200
bos.mp64 7.2.5.200
VIOS 3.1.4.10
bos.net.tcp.client_core 7.2.5.201
bos.mp64 7.2.5.201
VIOS 3.1.4.20
 iFix iFix
VIOS 3.1.3.0
bos.net.tcp.client_core 7.2.5.100
bos.mp64 7.2.5.100
VIOS 3.1.3.30
bos.net.tcp.client_core 7.2.5.105
bos.mp64 7.2.5.106
VIOS 3.1.3.40
 iFix iFix
VIOS 3.1.2.30
bos.net.tcp.client_core 7.2.5.5
bos.mp64 7.2.5.4
VIOS 3.1.2.50
bos.net.tcp.client_core 7.2.5.7
bos.mp64 7.2.5.6
VIOS 3.1.2.60
 iFix iFix

*The HIPER ifixes in this column include the conflicting kernel and TCP/IP kernel extension security vulnerability fixes from: https://www.ibm.com/support/pages/node/6847947

This table describes which active levels are affected and where to obtain fixes.
Before the APAR fix is available, an interim fix (iFix) is available for each affected level.
The available interim fixes might apply only to the latest Service Packs. If a custom interim fix is required, contact IBM Support. The interim fixes can be downloaded from the same location by using HTTPS or FTPS.

Date first published

17 February 2023

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Document Information

Modified date:
24 April 2023

UID

ibm16857545

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