CVE-2015-5366

Description

The (1) udp_recvmsg and (2) udpv6_recvmsg functions in the Linux kernel before 4.0.6 provide inappropriate -EAGAIN return values, which allows remote attackers to cause a denial of service (EPOLLET epoll application read outage) via an incorrect checksum in a UDP packet, a different vulnerability than CVE-2015-5364.

Category

5.0
CVSS
Severity: Medium
CVSS 2.0 •
EPSS 9.72% Top 10%
Vendor Advisory opensuse.org Vendor Advisory opensuse.org Vendor Advisory ubuntu.com Vendor Advisory opensuse.org Vendor Advisory ubuntu.com Vendor Advisory ubuntu.com Vendor Advisory opensuse.org Vendor Advisory redhat.com Vendor Advisory ubuntu.com Vendor Advisory redhat.com Vendor Advisory opensuse.org Vendor Advisory debian.org Vendor Advisory redhat.com Vendor Advisory opensuse.org Vendor Advisory ubuntu.com Vendor Advisory debian.org Vendor Advisory ubuntu.com Vendor Advisory redhat.com Vendor Advisory opensuse.org Vendor Advisory ubuntu.com Vendor Advisory opensuse.org Vendor Advisory redhat.com Vendor Advisory redhat.com Vendor Advisory redhat.com Vendor Advisory opensuse.org Vendor Advisory opensuse.org Vendor Advisory opensuse.org
Affected: n/a n/a
Published at:
Updated at:

References

Link Tags
http://lists.opensuse.org/opensuse-security-announce/2015-09/msg00011.html vendor advisory
http://lists.opensuse.org/opensuse-security-announce/2015-09/msg00009.html vendor advisory
http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=beb39db59d14990e401e235faf66a6b9b31240b0
http://www.ubuntu.com/usn/USN-2713-1 vendor advisory
http://lists.opensuse.org/opensuse-security-announce/2015-09/msg00008.html vendor advisory
http://www.ubuntu.com/usn/USN-2680-1 vendor advisory
http://www.ubuntu.com/usn/USN-2682-1 vendor advisory
http://www.oracle.com/technetwork/topics/security/linuxbulletinjan2016-2867209.html
http://lists.opensuse.org/opensuse-security-announce/2015-09/msg00021.html vendor advisory
http://rhn.redhat.com/errata/RHSA-2015-1778.html vendor advisory
http://www.ubuntu.com/usn/USN-2714-1 vendor advisory
http://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.0.6
http://rhn.redhat.com/errata/RHSA-2016-1096.html vendor advisory
http://lists.opensuse.org/opensuse-security-announce/2015-07/msg00049.html vendor advisory
http://www.debian.org/security/2015/dsa-3329 vendor advisory
http://www.openwall.com/lists/oss-security/2015/06/30/13 mailing list
https://bugzilla.redhat.com/show_bug.cgi?id=1239029
http://rhn.redhat.com/errata/RHSA-2015-1787.html vendor advisory
http://www.oracle.com/technetwork/topics/security/linuxbulletinoct2015-2719645.html
http://www.securitytracker.com/id/1032794 vdb entry
http://lists.opensuse.org/opensuse-security-announce/2015-08/msg00011.html vendor advisory
http://www.ubuntu.com/usn/USN-2684-1 vendor advisory
http://www.debian.org/security/2015/dsa-3313 vendor advisory
http://kb.juniper.net/InfoCenter/index?page=content&id=JSA10761
http://www.ubuntu.com/usn/USN-2681-1 vendor advisory
http://rhn.redhat.com/errata/RHSA-2016-0045.html vendor advisory
http://lists.opensuse.org/opensuse-security-announce/2015-09/msg00004.html vendor advisory
http://www.ubuntu.com/usn/USN-2683-1 vendor advisory
http://lists.opensuse.org/opensuse-security-announce/2015-09/msg00010.html vendor advisory
http://www.securityfocus.com/bid/75510 vdb entry
https://access.redhat.com/errata/RHSA-2016:1225 vendor advisory
http://rhn.redhat.com/errata/RHSA-2016-1100.html vendor advisory
http://rhn.redhat.com/errata/RHSA-2015-1623.html vendor advisory
http://lists.opensuse.org/opensuse-security-announce/2015-07/msg00023.html vendor advisory
http://lists.opensuse.org/opensuse-security-announce/2015-09/msg00007.html vendor advisory
http://lists.opensuse.org/opensuse-security-announce/2015-09/msg00018.html vendor advisory
https://github.com/torvalds/linux/commit/beb39db59d14990e401e235faf66a6b9b31240b0

Frequently Asked Questions

What is the severity of CVE-2015-5366?
CVE-2015-5366 has been scored as a medium severity vulnerability.
How to fix CVE-2015-5366?
To fix CVE-2015-5366, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2015-5366 being actively exploited in the wild?
It is possible that CVE-2015-5366 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~10% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
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