Bugzilla will be upgraded to version 5.0 on a still to be determined date in the near future. The original upgrade date has been delayed.
First Last Prev Next    This bug is not in your last search results.
Bug 1283253 - (CVE-2015-8215) CVE-2015-8215 kernel: MTU value is not validated in IPv6 stack causing packet loss
CVE-2015-8215 kernel: MTU value is not validated in IPv6 stack causing packet...
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=20150223,repor...
: Reopened, Security
Depends On: 1194011 1250773 1283254
Blocks: 1283258
  Show dependency tree / graph
 
Reported: 2015-11-18 09:24 EST by Adam Mariš
Modified: 2018-08-28 18:00 EDT (History)
31 users (show)

See Also:
Fixed In Version:
Doc Type: Bug Fix
Doc Text:
It was found that the Linux kernel's IPv6 network stack did not properly validate the value of the MTU variable when it was set. A remote attacker could potentially use this flaw to disrupt a target system's networking (packet loss) by setting an invalid MTU value, for example, via a NetworkManager daemon that is processing router advertisement packets running on the target system.
Story Points: ---
Clone Of:
Environment:
Last Closed: 2015-12-22 11:00:30 EST
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-2016:0855 normal SHIPPED_LIVE Moderate: kernel security, bug fix, and enhancement update 2016-05-10 18:43:57 EDT

  None (edit)
Description Adam Mariš 2015-11-18 09:24:16 EST 
A vulnerability in net/ipv6/addrconf.c in the IPv6 stack in the Linux kernel before 4.0, where the MTU value was not validated, was found. This allowed context-dependent attackers to cause a denial of service (packet loss) via a value that is either smaller than the minimum compliant value or larger than the MTU of an interface.

Upstream patch:

https://github.com/torvalds/linux/commit/77751427a1ff25b27d47a4c36b12c3c8667855ac
Comment 1 Adam Mariš 2015-11-18 09:24:53 EST 
Created kernel tracking bugs for this issue:

Affects: fedora-all [bug 1283254]
Comment 3 Vladis Dronov 2015-12-22 10:55:58 EST 
Statement:

This issue does not affect the Linux kernel packages as shipped with Red Hat Enterprise Linux 7 and MRG-2 as this flaw was fixed in the recent releases.

This issue affects the Linux kernel packages as shipped with Red Hat Enterprise
Linux 6. Future updates for the respective releases may address the issue.

This issue affects the Linux kernel packages as shipped with Red Hat Enterprise Linux 5. This has been rated as having Moderate security impact and is not currently planned to be addressed in future updates of Red Hat Enterprise Linux 5. For additional information, refer to the Red Hat Enterprise Linux Life Cycle: https://access.redhat.com/support/policy/updates/errata/.
Comment 4 errata-xmlrpc 2016-05-10 19:26:16 EDT 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 6

Via RHSA-2016:0855 https://rhn.redhat.com/errata/RHSA-2016-0855.html
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.