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Bug 1221541 - (CVE-2015-3167) CVE-2015-3167 postgresql: pgcrypto has multiple error messages for decryption with an incorrect key.
CVE-2015-3167 postgresql: pgcrypto has multiple error messages for decryption...
Status: CLOSED ERRATA
Product: Security Response
Classification: Other
Component: vulnerability (Show other bugs)
unspecified
All Linux
low Severity low
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Assigned To: Red Hat Product Security
impact=low,public=20150522,reported=2...
: Security
Depends On: 1224319 1224320 1225794 1225795 1225797 1225798 1225799 1232680 1232685
Blocks: 1221543
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Reported: 2015-05-14 06:21 EDT by Martin Prpič
Modified: 2016-01-22 07:58 EST (History)
30 users (show)

See Also:
Fixed In Version: postgresql 9.4.2, postgresql 9.3.7, postgresql 9.2.11, postgresql 9.1.16, postgresql 9.0.20
Doc Type: Bug Fix
Doc Text:
It was discovered that the pgcrypto module could return different error messages when decrypting certain data with an incorrect key. This could potentially help an authenticated user to launch a possible cryptographic attack, although no suitable attack is currently known.
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Environment:
Last Closed: 2015-07-10 00:31:49 EDT
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RHEL 7.3 requirements from Atomic Host:
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External Trackers
Tracker ID Priority Status Summary Last Updated
Red Hat Product Errata RHSA-2015:1194 normal SHIPPED_LIVE Moderate: postgresql security update 2015-06-29 16:43:24 EDT
Red Hat Product Errata RHSA-2015:1195 normal SHIPPED_LIVE Moderate: postgresql92-postgresql security update 2015-06-29 16:09:47 EDT
Red Hat Product Errata RHSA-2015:1196 normal SHIPPED_LIVE Moderate: rh-postgresql94-postgresql security update 2015-06-29 16:09:05 EDT

  None (edit)
Description Martin Prpič 2015-05-14 06:21:49 EDT 
The PostgreSQL project reports the following issue:

pgcrypto functions usually reported "Wrong key or corrupt data" upon decrypting with an incorrect key, but several other messages were possible when the errant decryption output resembled an OpenPGP packet header. Error message variance in other systems has enabled cryptologic attacks; see RFC 4880 section "14. Security Considerations". Whether these pgcrypto behaviors are likewise exploitable is unknown.

This flaw is fixed in upstream versions 9.4.2, 9.3.7, 9.2.11, 9.1.16, and 9.0.20 of PostgreSQL.

Acknowledgements:

Red Hat would like to thank the PostgreSQL project for reporting this issue. Upstream acknowledges Noah Misch as the original reporter.
Comment 3 Stefan Cornelius 2015-05-22 10:29:07 EDT 
Public via:
http://www.postgresql.org/about/news/1587/
Comment 10 errata-xmlrpc 2015-06-29 12:09:34 EDT 
This issue has been addressed in the following products:

  Red Hat Software Collections for Red Hat Enterprise Linux 7
  Red Hat Software Collections for Red Hat Enterprise Linux 7.1 EUS
  Red Hat Software Collections for Red Hat Enterprise Linux 6.6 EUS
  Red Hat Software Collections for Red Hat Enterprise Linux 6.5 EUS
  Red Hat Software Collections for Red Hat Enterprise Linux 6

Via RHSA-2015:1196 https://rhn.redhat.com/errata/RHSA-2015-1196.html
Comment 11 errata-xmlrpc 2015-06-29 12:10:49 EDT 
This issue has been addressed in the following products:

  Red Hat Software Collections for Red Hat Enterprise Linux 7
  Red Hat Software Collections for Red Hat Enterprise Linux 7.1 EUS
  Red Hat Software Collections for Red Hat Enterprise Linux 6.6 EUS
  Red Hat Software Collections for Red Hat Enterprise Linux 6.5 EUS
  Red Hat Software Collections for Red Hat Enterprise Linux 6

Via RHSA-2015:1195 https://rhn.redhat.com/errata/RHSA-2015-1195.html
Comment 12 errata-xmlrpc 2015-06-29 12:45:28 EDT 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 6
  Red Hat Enterprise Linux 7

Via RHSA-2015:1194 https://rhn.redhat.com/errata/RHSA-2015-1194.html
Comment 13 Martin Prpič 2015-07-24 03:10:26 EDT 
Statement:

Red Hat Enterprise Linux 5 is now in Production 3 Phase of the support and maintenance life cycle. This flaw has been rated as having Low security impact and is not currently planned to be addressed in future updates. For additional information, refer to the Red Hat Enterprise Linux Life Cycle: https://access.redhat.com/support/policy/updates/errata/.
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