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Vulnerability record · CVE-2015-5366 · published 31 August 2015

CVE-2015-5366: Linux kernel vulnerability

Linux · Linux Kernel

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.

5.0 CVSS 2.0 Medium EPSS 6.1% · top 6.8% CWE-399 · CWE-399
5.0CVSS 2.0 base score
6.1%EPSS exploitation probability, 30 days
NoNot in CISA KEV
2Affected product versions listed by NVD
74References
17 Jun 2026Last modified by NVD

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.

AV:N/AC:L/Au:N/C:N/I:N/A:P

Affected products

2 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

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

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Source: NIST National Vulnerability Database (record CVE-2015-5366), CISA KEV, FIRST EPSS (scores of 2026-09-27). This page is refreshed as NVD updates the record.