CVE-2023-52927

In the Linux kernel, the following vulnerability has been resolved: netfilter: allow exp not to be removed in nf_ct_find_expectation Currently nf_conntrack_in() calling nf_ct_find_expectation() will remove the exp from the hash table. However, in some scenario, we expect the exp not to be removed when the created ct will not be confirmed, like in OVS and TC conntrack in the following patches. This patch allows exp not to be removed by setting IPS_CONFIRMED in the status of the tmpl.
Configurations

Configuration 1 (hide)

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

History

17 Jul 2025, 16:18

Type Values Removed Values Added
First Time Linux
Linux linux Kernel
References () https://git.kernel.org/stable/c/3fa58a6fbd1e9e5682d09cdafb08fba004cb12ec - () https://git.kernel.org/stable/c/3fa58a6fbd1e9e5682d09cdafb08fba004cb12ec - Broken Link
References () https://git.kernel.org/stable/c/4914109a8e1e494c6aa9852f9e84ec77a5fc643f - () https://git.kernel.org/stable/c/4914109a8e1e494c6aa9852f9e84ec77a5fc643f - Broken Link
CVSS v2 : unknown
v3 : unknown
v2 : unknown
v3 : 5.5
Summary
  • (es) En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: netfilter: permite que exp no se elimine en nf_ct_find_expectation. Actualmente, nf_conntrack_in(), que llama a nf_ct_find_expectation(), elimina la exp de la tabla hash. Sin embargo, en algunos casos, esperamos que la exp no se elimine cuando el ct creado no se confirme, como en OVS y TC conntrack en los parches posteriores. Este parche permite que exp no se elimine estableciendo IPS_CONFIRMED en el estado del tmpl.
CPE cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
CWE NVD-CWE-noinfo

14 Mar 2025, 15:15

Type Values Removed Values Added
New CVE

Information

Published : 2025-03-14 15:15

Updated : 2025-07-17 16:18


NVD link : CVE-2023-52927

Mitre link : CVE-2023-52927

CVE.ORG link : CVE-2023-52927


JSON object : View

Products Affected

linux

  • linux_kernel