CVE-2019-15239

In the Linux kernel, a certain net/ipv4/tcp_output.c change, which was properly incorporated into 4.16.12, was incorrectly backported to the earlier longterm kernels, introducing a new vulnerability that was potentially more severe than the issue that was intended to be fixed by backporting. Specifically, by adding to a write queue between disconnection and re-connection, a local attacker can trigger multiple use-after-free conditions. This can result in a kernel crash, or potentially in privilege escalation. NOTE: this affects (for example) Linux distributions that use 4.9.x longterm kernels before 4.9.190 or 4.14.x longterm kernels before 4.14.139.
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Configurations

Configuration 1 (hide)

cpe:2.3:o:linux:linux_kernel:4.16.12:*:*:*:*:*:*:*

Configuration 2 (hide)

OR cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:*
cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*

Information

Published : 2019-08-20 01:15

Updated : 2020-08-18 08:05


NVD link : CVE-2019-15239

Mitre link : CVE-2019-15239


JSON object : View

CWE
CWE-416

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Products Affected

debian

  • debian_linux

linux

  • linux_kernel