CVE-2019-8956 Information

Description

In the Linux Kernel before versions 4.20.8 and 4.19.21 a use-after-free error in the \sctp_sendmsg()\ function (net/sctp/socket.c) when handling SCTP_SENDALL flag can be exploited to corrupt memory.

CVSS Vector

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

Reference

https://cdn.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.19.21 https://cdn.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.20.8 https://git.kernel.org/cgit/linux/kernel/git/stable/linux-stable.git/commit/?id=ba59fb0273076637f0add4311faa990a5eec27c0 https://secuniaresearch.flexerasoftware.com/secunia_research/2019-5/ https://support.f5.com/csp/article/K12671141 https://usn.ubuntu.com/3930-1/ https://usn.ubuntu.com/3930-2/

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