Note: This is a public test instance of Red Hat Bugzilla. The data contained within is a snapshot of the live data so any changes you make will not be reflected in the production Bugzilla. Email is disabled so feel free to test any aspect of the site that you want. File any problems you find or give feedback at bugzilla.redhat.com.
Bug 1441093 (CVE-2017-7618) - CVE-2017-7618 kernel: Infinite recursion in ahash.c by triggering EBUSY on a full queue
Summary: CVE-2017-7618 kernel: Infinite recursion in ahash.c by triggering EBUSY on a ...
Keywords:
Status: CLOSED NOTABUG
Alias: CVE-2017-7618
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
low
low
Target Milestone: ---
Assignee: Red Hat Product Security
QA Contact:
URL:
Whiteboard:
Depends On: 1441095 1443983
Blocks:
TreeView+ depends on / blocked
 
Reported: 2017-04-11 08:23 UTC by Andrej Nemec
Modified: 2021-02-17 02:21 UTC (History)
34 users (show)

Fixed In Version:
Doc Type: Bug Fix
Doc Text:
A vulnerability was found in crypto/ahash.c in the Linux kernel which allows attackers to cause a denial of service (API operation calling its own callback, and infinite recursion) by triggering EBUSY on a full queue.
Clone Of:
Environment:
Last Closed: 2017-04-24 12:04:22 UTC
Embargoed:

Attachments (Terms of Use)

Description Andrej Nemec 2017-04-11 08:23:28 UTC 
crypto/ahash.c in the Linux kernel allows attackers to cause a denial of service (API operation calling its own callback, and infinite recursion) by triggering EBUSY on a full queue.

Initial discussion:

https://www.spinics.net/lists/linux-crypto/msg25101.html

http://marc.info/?t=149181406700001&r=1&w=2

http://marc.info/?t=149181666400002&r=1&w=2

Proposed patch:

http://marc.info/?l=linux-crypto-vger&m=149181655623850&w=2

Upstream patch:

https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=ef0579b64e93188710d48667cb5e014926af9f1b
Comment 1 Andrej Nemec 2017-04-11 08:26:31 UTC 
Created kernel tracking bugs for this issue:

Affects: fedora-all [bug 1441095]
Comment 4 Vladis Dronov 2017-04-24 12:04:22 UTC 
Statement:

This issue does not affect the Linux kernel packages as shipped with Red Hat Enterprise Linux 5, 6, 7 and MRG-2 as the code where the flaw was found is not present in these products.
Note You need to log in before you can comment on or make changes to this bug.