Bugzilla will be upgraded to version 5.0. The upgrade date is tentatively scheduled for 2 December 2018, pending final testing and feedback.
First Last Prev Next    This bug is not in your last search results.
Bug 1581637 - (CVE-2017-13305) CVE-2017-13305 kernel: Buffer over-read in keyring subsystem allows exposing potentially sensitive information to local attacker
CVE-2017-13305 kernel: Buffer over-read in keyring subsystem allows exposing ...
Status: NEW
Product: Security Response
Classification: Other
Component: vulnerability (Show other bugs)
unspecified
All Linux
medium Severity medium
: ---
: ---
Assigned To: Red Hat Product Security
impact=moderate,public=20170608,repor...
: Security
Depends On: 1582985
Blocks: 1581641
  Show dependency tree / graph
 
Reported: 2018-05-23 05:32 EDT by Adam Mariš
Modified: 2018-08-28 18:43 EDT (History)
42 users (show)

See Also:
Fixed In Version: kernel 4.12
Doc Type: If docs needed, set a value
Doc Text:
A flaw was found in the Linux kernel's implementation of valid_master_desc() in which a memory buffer would be compared to a userspace value with an incorrect size of comparison. By bruteforcing the comparison, an attacker could determine what was in memory after the description and possibly obtain sensitive information from kernel memory.
Story Points: ---
Clone Of:
Environment:
Last Closed:
Type: ---
Regression: ---
Mount Type: ---
Documentation: ---
CRM:
Verified Versions:
Category: ---
oVirt Team: ---
RHEL 7.3 requirements from Atomic Host:
Cloudforms Team: ---

Attachments (Terms of Use)
Add an attachment (proposed patch, testcase, etc.)


External Trackers
Tracker ID Priority Status Summary Last Updated
Red Hat Product Errata RHSA-2018:2165 None None None 2018-07-10 13:17 EDT

  None (edit)
Description Adam Mariš 2018-05-23 05:32:20 EDT 
A flaw was found in the Linux kernels implementation of valid_master_desc() in which a memory buffer would be compared to a userspace value with an incorrect size of comparison.  By bruteforcing the comparison an attacker could determine what was in memory after the description.

This could allow a local attacker to obtain possibly sensitive information from kernel memory.

Upstream patch:

https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=794b4bc292f5d31739d89c0202c54e7dc9bc3add
Comment 4 errata-xmlrpc 2018-07-10 13:16:51 EDT 
This issue has been addressed in the following products:

  Red Hat Enterprise MRG 2

Via RHSA-2018:2165 https://access.redhat.com/errata/RHSA-2018:2165
Note You need to log in before you can comment on or make changes to this bug.
First Last Prev Next    This bug is not in your last search results.