CVE-2025-40206 netfilter: nft_objref: validate objref and objrefmap expressions

In the Linux kernel, the following vulnerability has been resolved: netfilter: nftobjref: validate objref and objrefmap expressions Referencing a synproxy stateful object from OUTPUT hook causes kernel crash due to infinite recursive calls: BUG: TASK stack guard page was hit at 000000008bda5b8c...

CVE-2025-40206

In the Linux kernel, the following vulnerability has been resolved: netfilter: nftobjref: validate objref and objrefmap expressions Referencing a synproxy stateful object from OUTPUT hook causes kernel crash due to infinite recursive calls: BUG: TASK stack guard page was hit at 000000008bda5b8c...

CVE-2025-40206 netfilter: nft_objref: validate objref and objrefmap expressions

In the Linux kernel, the following vulnerability has been resolved: netfilter: nftobjref: validate objref and objrefmap expressions Referencing a synproxy stateful object from OUTPUT hook causes kernel crash due to infinite recursive calls: BUG: TASK stack guard page was hit at 000000008bda5b8c...

CVE-2025-40206: Undefined Security Weakness

In the Linux kernel, the following vulnerability has been resolved: netfilter: nftobjref: validate objref and objrefmap expressions Referencing a synproxy stateful object from OUTPUT hook causes kernel crash due to infinite recursive calls: BUG: TASK stack guard page was hit at 000000008bda5b8c...

Unity Linux 20.1070a Security Update: kernel (UTSA-2025-988991)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2025-988991 advisory. In the Linux kernel, the following vulnerability has been resolved: netfilter: synproxy: Fix out of bounds when parsing TCP options The TCP option parser in synproxy...

PT-2025-46763

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description The Linux kernel contains a flaw within the netfilter module related to the validation of objref and objrefmap expressions. Specifically, referencing a synproxy stateful object from the...

Unity Linux 20.1070e Security Update: kernel (UTSA-2025-987082)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2025-987082 advisory. In the Linux kernel, the following vulnerability has been resolved: netfilter: synproxy: Fix out of bounds when parsing TCP options The TCP option parser in synproxy...

The vulnerability of the `synproxy_parse_options()` function in the `net/netfilter/nf_synproxy_core.c` module of the `netfilter` component of the Linux operating system allows a hacker to trigger a service failure.

The vulnerability of the synproxyparseoptions function in the net/netfilter/nfsynproxycore.c module of the netfilter component of the Linux operating system is related to reading beyond the buffer boundaries. Exploiting this vulnerability could allow an attacker to cause a service failure...

CVE-2021-47245

A vulnerability was found in the Linux kernel's netfilter system, in the synproxy TCP option parser. This issue allows the parser to read one byte beyond its intended limit when processing TCP options, which could lead to unexpected behavior or crash. Mitigation Red Hat has investigated whether a...

SUSE CVE-2021-47245

In the Linux kernel, the following vulnerability has been resolved: netfilter: synproxy: Fix out of bounds when parsing TCP options The TCP option parser in synproxy synproxyparseoptions could read one byte out of bounds. When the length is 1, the execution flow gets into the loop, reads one byte...

DEBIAN-CVE-2021-47245

In the Linux kernel, the following vulnerability has been resolved: netfilter: synproxy: Fix out of bounds when parsing TCP options The TCP option parser in synproxy synproxyparseoptions could read one byte out of bounds. When the length is 1, the execution flow gets into the loop, reads one byte...

CVE-2021-47245

In the Linux kernel, the following vulnerability has been resolved: netfilter: synproxy: Fix out of bounds when parsing TCP options The TCP option parser in synproxy synproxyparseoptions could read one byte out of bounds. When the length is 1, the execution flow gets into the loop, reads one byte...

CVE-2021-47245

In the Linux kernel, the following vulnerability has been resolved: netfilter: synproxy: Fix out of bounds when parsing TCP options The TCP option parser in synproxy synproxyparseoptions could read one byte out of bounds. When the length is 1, the execution flow gets into the loop, reads one byte...

CVE-2021-47245

In the Linux kernel, the following vulnerability has been resolved: netfilter: synproxy: Fix out of bounds when parsing TCP options The TCP option parser in synproxy synproxyparseoptions could read one byte out of bounds. When the length is 1, the execution flow gets into the loop, reads one byte...

UBUNTU-CVE-2021-47245

In the Linux kernel, the following vulnerability has been resolved: netfilter: synproxy: Fix out of bounds when parsing TCP options The TCP option parser in synproxy synproxyparseoptions could read one byte out of bounds. When the length is 1, the execution flow gets into the loop, reads one byte...

CVE-2021-47245 netfilter: synproxy: Fix out of bounds when parsing TCP options

In the Linux kernel, the following vulnerability has been resolved: netfilter: synproxy: Fix out of bounds when parsing TCP options The TCP option parser in synproxy synproxyparseoptions could read one byte out of bounds. When the length is 1, the execution flow gets into the loop, reads one byte...

CVE-2021-47245

CVE-2021-47245 affects the Linux kernel netfilter synproxy TCP option parser. The vulnerability arises from an out-of-bounds read in synproxy_parse_options when parsing TCP options; if length equals 1, the loop reads an opcode byte and, if it is not TCPOPT_EOL or TCPOPT_NOP, reads one more byte, ...

CVE-2021-47245

In the Linux kernel, the following vulnerability has been resolved: netfilter: synproxy: Fix out of bounds when parsing TCP options The TCP option parser in synproxy synproxyparseoptions could read one byte out of bounds. When the length is 1, the execution flow gets into the loop, reads one byte...

CVE-2021-47245: Out-of-bounds Read

In the Linux kernel, the following vulnerability has been resolved: netfilter: synproxy: Fix out of bounds when parsing TCP options The TCP option parser in synproxy synproxyparseoptions could read one byte out of bounds. When the length is 1, the execution flow gets into the loop, reads one byte...

GSD-2021-1001061 netfilter: synproxy: Fix out of bounds when parsing TCP options

netfilter: synproxy: Fix out of bounds when parsing TCP options This is an automated ID intended to aid in discovery of potential security vulnerabilities. The actual impact and attack plausibility have not yet been proven. This ID is fixed in Linux Kernel version v5.12.13 by commit...