CVE-2021-20400: Weak Encryption
First published: Fri Nov 26 2021(Updated: )
IBM QRadar SIEM 7.3 and 7.4 uses weaker than expected cryptographic algorithms that could allow an attacker to decrypt highly sensitive information. IBM X-Force ID: 196074.
Credit: psirt@us.ibm.com
| Affected Software | Affected Version | How to fix |
|---|---|---|
| IBM QRadar Security Information and Event Manager | >=7.3.0<7.3.3 | |
| IBM QRadar Security Information and Event Manager | >=7.4.0<7.4.3 | |
| IBM QRadar Security Information and Event Manager | =7.3.3 | |
| IBM QRadar Security Information and Event Manager | =7.3.3-fix_pack_1 | |
| IBM QRadar Security Information and Event Manager | =7.3.3-fix_pack_2 | |
| IBM QRadar Security Information and Event Manager | =7.3.3-fix_pack_3 | |
| IBM QRadar Security Information and Event Manager | =7.3.3-fix_pack_4 | |
| IBM QRadar Security Information and Event Manager | =7.3.3-fix_pack_5 | |
| IBM QRadar Security Information and Event Manager | =7.3.3-fix_pack_6 | |
| IBM QRadar Security Information and Event Manager | =7.3.3-fix_pack_7 | |
| IBM QRadar Security Information and Event Manager | =7.3.3-fix_pack_8 | |
| IBM QRadar Security Information and Event Manager | =7.3.3-fix_pack_9 | |
| IBM QRadar Security Information and Event Manager | =7.4.3 | |
| IBM QRadar Security Information and Event Manager | =7.4.3-fix_pack_1 | |
| IBM QRadar Security Information and Event Manager | =7.4.3-fix_pack_2 | |
| IBM QRadar Security Information and Event Manager | =7.4.3-fix_pack_3 | |
| Linux Linux kernel |
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Reference Links
Frequently Asked Questions
What is the vulnerability ID for this vulnerability?
The vulnerability ID for this vulnerability is CVE-2021-20400.
What is the severity of CVE-2021-20400?
The severity of CVE-2021-20400 is high.
Which version of IBM QRadar is affected by CVE-2021-20400?
IBM QRadar SIEM versions 7.3.0 to 7.3.3 and versions 7.4.0 to 7.4.3 are affected by CVE-2021-20400.
How can an attacker exploit CVE-2021-20400?
An attacker can exploit CVE-2021-20400 by using weaker than expected cryptographic algorithms to decrypt highly sensitive information.
Is there a fix for CVE-2021-20400?
Yes, IBM has released fixes for CVE-2021-20400. Please refer to the IBM support page for more information on specific versions and fix packs.
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- vendor/linux
- canonical/linux linux kernel