CVE-2018-1426
IBM GSKit (IBM DB2 for Linux, UNIX and Windows 9.7, 10.1, 10.5, and 11.1) duplicates the PRNG state across fork() system calls when multiple ICC instances are loaded which could result in duplicate Session IDs and a risk of duplicate key material.
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (2.41%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
Description
IBM GSKit (IBM DB2 for Linux, UNIX and Windows 9.7, 10.1, 10.5, and 11.1) duplicates the PRNG state across fork() system calls when multiple ICC instances are loaded which could result in duplicate Session IDs and a risk of duplicate key material. IBM X-Force ID: 139071.
- CVSS 3.0
- 9.1 CRITICALCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N
- EPSS
- 2.41% probability · 84th percentile
- Public exploits
- None in Exploit-DB
- CISA KEV
- Not listed
- Weakness
- CWE-335
- Affected
- ibm/db2
- Source
- psirt@us.ibm.com
EPSS 2.4% since 27 October 2026; no change recorded yet. Points are recorded when the score first appears and whenever it moves by a percentage point or more.
References
- http://www.ibm.com/support/docview.wss?uid=swg22013756Vendor Advisory
- http://www.securityfocus.com/bid/105580Third Party Advisory, VDB Entry
- http://www.securitytracker.com/id/1041012Third Party Advisory, VDB Entry
- https://exchange.xforce.ibmcloud.com/vulnerabilities/139071VDB Entry, Vendor Advisory
- http://www.ibm.com/support/docview.wss?uid=swg22013756Vendor Advisory
- http://www.securityfocus.com/bid/105580Third Party Advisory, VDB Entry
- http://www.securitytracker.com/id/1041012Third Party Advisory, VDB Entry
- https://exchange.xforce.ibmcloud.com/vulnerabilities/139071VDB Entry, Vendor Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.