Security Bulletin
Summary
There is a vulnerability in Korn Shell (ksh) that affects AIX.
Vulnerability Details
CVEID: CVE-2021-29741
DESCRIPTION: IBM AIX 7.1, 7.2, and VIOS 3.1 could allow a local user to exploit a vulnerability in Korn Shell (ksh) to gain root privileges. IBM X-Force ID: 201478.
CVSS Base score: 8.4
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/201478 for the current score.
CVSS Vector: (CVSS:3.0/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H)
Affected Products and Versions
Affected Product(s) | Version(s) |
AIX | 7.1 |
AIX | 7.2 |
VIOS | 3.1 |
The vulnerabilities in the following filesets are being addressed:
Fileset | Lower Level | Upper Level |
bos.rte.shell | 7.1.5.30 | 7.1.5.36 |
bos.rte.shell | 7.2.3.0 | 7.2.3.20 |
bos.rte.shell | 7.2.4.0 | 7.2.4.3 |
bos.rte.shell | 7.2.5.0 | 7.2.5.2 |
Remediation/Fixes
AIX Level | APAR | SP |
7.1.5 | IJ31606 | SP09 |
7.2.3 | IJ32285 | N/A |
7.2.4 | IJ31614 | SP05 |
7.2.5 | IJ31545 | SP03 |
VIOS Level | APAR | SP |
3.1.0 | IJ32285 | N/A |
3.1.1 | IJ31614 | 3.1.1.50 |
3.1.2 | IJ30557 | 3.1.2.30 |
Subscribe to the APARs here:
https://www.ibm.com/support/pages/apar/IJ30557
https://www.ibm.com/support/pages/apar/IJ31545
https://www.ibm.com/support/pages/apar/IJ31606
https://www.ibm.com/support/pages/apar/IJ31614
https://www.ibm.com/support/pages/apar/IJ32285
AIX Level | Interim Fix |
7.1.5.6 | IJ31606s6a.210628.epkg.Z |
7.1.5.7 | IJ31606s7a.210628.epkg.Z |
7.1.5.8 | IJ31606s7a.210628.epkg.Z |
7.2.3.5 | IJ32285s4a.210628.epkg.Z |
7.2.3.6 | IJ32285s4a.210628.epkg.Z |
7.2.3.7 | IJ32285s4a.210628.epkg.Z |
7.2.4.2 | IJ31614s1a.210427.epkg.Z |
7.2.4.3 | IJ31614s1a.210427.epkg.Z |
7.2.4.4 | IJ31614s1a.210427.epkg.Z |
7.2.5.0 | IJ30557s2a.210427.epkg.Z |
7.2.5.1 | IJ30557s2a.210427.epkg.Z |
7.2.5.2 | IJ30557s2a.210427.epkg.Z |
VIOS Level | Interim Fix |
3.1.0.40 | IJ32285s4a.210628.epkg.Z |
3.1.0.50 | IJ32285s4a.210628.epkg.Z |
3.1.0.60 | IJ32285s4a.210628.epkg.Z |
3.1.1.20 | IJ31614s1a.210427.epkg.Z |
3.1.1.21 | IJ31614s1a.210427.epkg.Z |
3.1.1.25 | IJ31614s1a.210427.epkg.Z |
3.1.1.30 | IJ31614s1a.210427.epkg.Z |
3.1.1.40 | IJ31614s1a.210427.epkg.Z |
3.1.2.0 | IJ30557s2a.210427.epkg.Z |
3.1.2.10 | IJ30557s2a.210427.epkg.Z |
3.1.2.20 | IJ30557s2a.210427.epkg.Z |
3.1.2.21 | IJ30557s2a.210427.epkg.Z |
openssl dgst -sha256 | filename |
937c07cf9e42f7d0a5f2c4d3deee84da46bef49c174ffeb8d01f010d5aacd11e | IJ30557s2a.210427.epkg.Z |
764dfe4293c05298cc7325d57106850382a341127bbd9a0fefb469ff42706aa8 | IJ31606s6a.210628.epkg.Z |
de26cdab804af608be1392c53346037d7cd2de91cf67acab5d0e9d3ca988763a | IJ31606s7a.210628.epkg.Z |
2e9acbabe8632065096fe4e1ea6387af23cb495bff8e744c91205ba280bfa855 | IJ31614s1a.210427.epkg.Z |
6e7efc563989dc3a504ae9626b36053d2d58a6f3242660830c5019d67953dfa7 | IJ32285s4a.210628.epkg.Z |
Workarounds and Mitigations
None
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References
Acknowledgement
Change History
11 Aug 2021: Corrected the AIX 7.1 TL5 affected fileset levels
30 Jul 2021: Initial Publication
*The CVSS Environment Score is customer environment specific and will ultimately impact the Overall CVSS Score. Customers can evaluate the impact of this vulnerability in their environments by accessing the links in the Reference section of this Security Bulletin.
Disclaimer
Review the IBM security bulletin disclaimer and definitions regarding your responsibilities for assessing potential impact of security vulnerabilities to your environment.
Document Location
Worldwide
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Document Information
Modified date:
04 November 2021
UID
ibm16477018