CVE-2017-8824 Information

Description

The dccp_disconnect function in net/dccp/proto.c in the Linux kernel through 4.14.3 allows local users to gain privileges or cause a denial of service (use-after-free) via an AF_UNSPEC connect system call during the DCCP_LISTEN state.

CVSS Vector

CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Reference

http://lists.opensuse.org/opensuse-security-announce/2018-01/msg00007.html http://lists.openwall.net/netdev/2017/12/04/224 http://www.openwall.com/lists/oss-security/2017/12/05/1 http://www.securityfocus.com/bid/102056 https://access.redhat.com/errata/RHSA-2018:0399 https://access.redhat.com/errata/RHSA-2018:0676 https://access.redhat.com/errata/RHSA-2018:1062 https://access.redhat.com/errata/RHSA-2018:1130 https://access.redhat.com/errata/RHSA-2018:1170 https://access.redhat.com/errata/RHSA-2018:1216 https://access.redhat.com/errata/RHSA-2018:1319 https://access.redhat.com/errata/RHSA-2018:3822 https://help.ecostruxureit.com/display/public/UADCE725/Security+fixes+in+StruxureWare+Data+Center+Expert+v7.6.0 https://lists.debian.org/debian-lts-announce/2017/12/msg00004.html https://usn.ubuntu.com/3581-1/ https://usn.ubuntu.com/3581-2/ https://usn.ubuntu.com/3581-3/ https://usn.ubuntu.com/3582-1/ https://usn.ubuntu.com/3582-2/ https://usn.ubuntu.com/3583-1/ https://usn.ubuntu.com/3583-2/ https://www.debian.org/security/2017/dsa-4073 https://www.debian.org/security/2018/dsa-4082 https://www.exploit-db.com/exploits/43234/

Attack Complexity

LOW

Privileges Required

LOW

User Interaction Required

LOW

Scope

NONE

Confidentiality Impact

UNCHANGED

Integrity Impact

HIGH

Availability Impact

HIGH

Base Score

HIGH

Base Severity

7.8