Astra Linux – Vulnerability found in Linux 5.10, Linux 6.1, and Linux 5.15

In the Linux kernel, the following vulnerability has been resolved: netfilter: In the xtables function, there is a issue where walkers that process option data may read the last byte of the option area, which is less than 1 byte long. When the last byte of an option is not a single-byte character...

SUSE CVE-2026-43452

In the Linux kernel, the following vulnerability has been resolved: netfilter: xtables: guard option walkers against 1-byte tail reads When the last byte of options is a non-single-byte option kind, walkers that advance with i += opi + 1 ? : 1 can read opi + 1 past the end of the option area. Add...

EUVD-2026-28758

In the Linux kernel, the following vulnerability has been resolved: netfilter: xtables: guard option walkers against 1-byte tail reads When the last byte of options is a non-single-byte option kind, walkers that advance with i += opi + 1 ? : 1 can read opi + 1 past the end of the option area. Add...

CVE-2026-43452

In the Linux kernel, the following vulnerability has been resolved: netfilter: xtables: guard option walkers against 1-byte tail reads When the last byte of options is a non-single-byte option kind, walkers that advance with i += opi + 1 ? : 1 can read opi + 1 past the end of the option area. Add...

UBUNTU-CVE-2026-43452

In the Linux kernel, the following vulnerability has been resolved: netfilter: xtables: guard option walkers against 1-byte tail reads When the last byte of options is a non-single-byte option kind, walkers that advance with i += opi + 1 ? : 1 can read opi + 1 past the end of the option area. Add...

CVE-2026-43452

In the Linux kernel, the following vulnerability has been resolved: netfilter: xtables: guard option walkers against 1-byte tail reads When the last byte of options is a non-single-byte option kind, walkers that advance with i += opi + 1 ? : 1 can read opi + 1 past the end of the option area. Add...

CVE-2026-43452

In the Linux kernel, the following vulnerability has been resolved: netfilter: xtables: guard option walkers against 1-byte tail reads When the last byte of options is a non-single-byte option kind, walkers that advance with i += opi + 1 ? : 1 can read opi + 1 past the end of the option area. Add...

CVE-2026-43452 netfilter: x_tables: guard option walkers against 1-byte tail reads

In the Linux kernel, the following vulnerability has been resolved: netfilter: xtables: guard option walkers against 1-byte tail reads When the last byte of options is a non-single-byte option kind, walkers that advance with i += opi + 1 ? : 1 can read opi + 1 past the end of the option area. Add...

CVE-2026-43452

In the Linux kernel, the following vulnerability has been resolved: netfilter: xtables: guard option walkers against 1-byte tail reads When the last byte of options is a non-single-byte option kind, walkers that advance with i += opi + 1 ? : 1 can read opi + 1 past the end of the option area. Add...

CVE-2026-43452

CVE-2026-43452 affects the Linux kernel netfilter x_tables option walkers (xt_tcpudp and xt_dccp). The vulnerability arises when processing packet options: walkers that increment with i += op[i + 1] ? : 1 can read op[i + 1] past the end of the option area, enabling an out-of-bounds read. Multiple...

CVE-2026-43452 netfilter: x_tables: guard option walkers against 1-byte tail reads

In the Linux kernel, the following vulnerability has been resolved: netfilter: xtables: guard option walkers against 1-byte tail reads When the last byte of options is a non-single-byte option kind, walkers that advance with i += opi + 1 ? : 1 can read opi + 1 past the end of the option area. Add...

PT-2026-39113

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description A flaw in the netfilter x tables component allows for 1-byte tail reads. This occurs when the last byte of options is a non-single-byte option kind, causing walkers that advance using i ...