Bug 1656986 (CVE-2018-19854) - CVE-2018-19854 kernel: Information Disclosure in crypto_report_one in crypto/crypto_user.c
Summary: CVE-2018-19854 kernel: Information Disclosure in crypto_report_one in crypto/...
Keywords:
Status: CLOSED ERRATA
Alias: CVE-2018-19854
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
medium
medium
Target Milestone: ---
Assignee: Red Hat Product Security
QA Contact:
URL:
Whiteboard:
Depends On: 1657879 1657880 1657881 1657882
Blocks: 1656989
TreeView+ depends on / blocked
 
Reported: 2018-12-06 19:34 UTC by Laura Pardo
Modified: 2023-05-12 21:14 UTC (History)
44 users (show)

Fixed In Version: kernel 4.19.3
Doc Type: If docs needed, set a value
Doc Text:
An issue was discovered in the Linux kernel in the crypto_report_one() and related functions in the crypto/crypto_user.c (the crypto user configuration API) which do not fully initialize structures that are copied to userspace, potentially leaking sensitive kernel memory content to a userspace.
Clone Of:
Environment:
Last Closed: 2019-11-06 00:51:28 UTC
Embargoed:

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Links
System ID Private Priority Status Summary Last Updated
Red Hat Product Errata RHSA-2019:3309 0 None None None 2019-11-05 20:34:52 UTC
Red Hat Product Errata RHSA-2019:3517 0 None None None 2019-11-05 21:05:31 UTC

Description Laura Pardo 2018-12-06 19:34:18 UTC 
An issue was discovered in the Linux kernel in the crypto_report_one() and related functions in the crypto/crypto_user.c (the crypto user configuration API) which do not fully initialize structures that are copied to userspace, potentially leaking sensitive kernel memory content to a userspace.

References:

https://kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.19.3

An upstream patch:

https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=f43f39958beb206b53292801e216d9b8a660f087
Comment 3 Vladis Dronov 2018-12-10 16:24:03 UTC 
Created kernel tracking bugs for this issue:

Affects: fedora-all [bug 1657882]
Comment 5 errata-xmlrpc 2019-11-05 20:34:50 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 8

Via RHSA-2019:3309 https://access.redhat.com/errata/RHSA-2019:3309
Comment 6 errata-xmlrpc 2019-11-05 21:05:29 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 8

Via RHSA-2019:3517 https://access.redhat.com/errata/RHSA-2019:3517
Comment 7 Product Security DevOps Team 2019-11-06 00:51:28 UTC 
This bug is now closed. Further updates for individual products will be reflected on the CVE page(s):

https://access.redhat.com/security/cve/cve-2018-19854
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