Astra Linux – Vulnerability found in Linux 5.10, Linux 6.1

In the Linux kernel, the following vulnerabilities have been resolved: netfilter: nfconntracksip – Fixed the issue where Content-Length values exceeding UINTMAX were truncated before calculating the SIP message boundary. In siphelptcp, the Content-Length header is parsed using simplestrtoul. This...

Astra Linux – Vulnerability found in Linux 5.10, Linux 6.1

In the Linux kernel, the following vulnerability has been resolved: netfilter: nfconntracksip: fixed the issue of using an uninitialized rtpaddr in the processsdp function. The processsdp function declares a union named rtpaddr on the stack and passes it to the nfnatsip sdpsession hook after...

kernel: netfilter: nf_conntrack_sip: don't use simple_strtoul

A flaw was found in the Linux kernel's netfilter SIP Session Initiation Protocol connection tracking module. This vulnerability, caused by unsafe port parsing, allows a remote attacker to send specially crafted malformed packets. Such packets could lead to excessive resource consumption,...

kernel: netfilter: nf_conntrack_sip: don't use simple_strtoul

A flaw was found in the Linux kernel's netfilter SIP Session Initiation Protocol connection tracking module. This vulnerability, caused by unsafe port parsing, allows a remote attacker to send specially crafted malformed packets. Such packets could lead to excessive resource consumption,...

The vulnerability of the `sip_help_tcp()` function in the `net/netfilter/nf_conntrack_sip.c` module of the `netfilter` component of the Linux operating system allows a attacker to compromise the confidentiality, integrity, and accessibility of the protected information.

The vulnerability of the siphelptcp function in the net/netfilter/nfconntracksip.c module of the netfilter component of the Linux operating system is related to insufficient verification of data authenticity. Exploiting this vulnerability could allow a remote attacker to compromise the...

The vulnerability of the process_sdp() function in the net/netfilter/nf_conntrack_sip.c module of the netfilter component of the Linux operating system allows a attacker to compromise the confidentiality, integrity, and accessibility of the protected information.

The vulnerability of the processsdp function in the net/netfilter/nfconntracksip.c module of the netfilter component in the Linux operating system’s kernel is related to the access to an uninitialized pointer. Exploiting this vulnerability could allow an attacker to compromise the confidentiality...

CVE-2026-74569

A flaw was found in the Linux kernel's netfilter Session Initiation Protocol SIP connection tracking module nfconntracksip. A remote attacker could send specially crafted SIP messages that cause an integer overflow during Network Address Translation NAT rewrite delta calculations. This overflow...

Unity Linux 20.1050e Security Update: kernel (UTSA-2026-100091)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-100091 advisory. In the Linux kernel, the following vulnerability has been resolved: netfilter: nfconntracksip: don't use simplestrtoul Replace unsafe port parsing in epaddrlen,...

AZL-96003 CVE-2026-74569 affecting package kernel 6.6.150.1-1

In the Linux kernel, the following vulnerability has been resolved: netfilter: nfconntracksip: widen NAT rewrite delta to s32 in siphelptcp siphelptcp stores the size change of each NAT-rewritten SIP message in s16 diff and accumulates it in s16 tdiff, but a single message can grow by more than...

UBUNTU-CVE-2026-74569

In the Linux kernel, the following vulnerability has been resolved: netfilter: nfconntracksip: widen NAT rewrite delta to s32 in siphelptcp siphelptcp stores the size change of each NAT-rewritten SIP message in s16 diff and accumulates it in s16 tdiff, but a single message can grow by more than...

CVE-2026-74569

In the Linux kernel, the following vulnerability has been resolved: netfilter: nfconntracksip: widen NAT rewrite delta to s32 in siphelptcp siphelptcp stores the size change of each NAT-rewritten SIP message in s16 diff and accumulates it in s16 tdiff, but a single message can grow by more than...

CVE-2026-74569 netfilter: nf_conntrack_sip: widen NAT rewrite delta to s32 in sip_help_tcp()

In the Linux kernel, the following vulnerability has been resolved: netfilter: nfconntracksip: widen NAT rewrite delta to s32 in siphelptcp siphelptcp stores the size change of each NAT-rewritten SIP message in s16 diff and accumulates it in s16 tdiff, but a single message can grow by more than...

CVE-2026-74569

CVE-2026-74569 affects the Linux kernel netfilter nf_conntrack_sip path. The issue stems from NAT rewrite delta handling in sip_help_tcp(), where diff/tdiff was stored in 16-bit fields and could overflow within large SIP messages, causing a read past the skb tail. The fix widens diff, tdiff, and ...

CVE-2026-74569

In the Linux kernel, the following vulnerability has been resolved: netfilter: nfconntracksip: widen NAT rewrite delta to s32 in siphelptcp siphelptcp stores the size change of each NAT-rewritten SIP message in s16 diff and accumulates it in s16 tdiff, but a single message can grow by more than...

CVE-2026-74569 netfilter: nf_conntrack_sip: widen NAT rewrite delta to s32 in sip_help_tcp()

In the Linux kernel, the following vulnerability has been resolved: netfilter: nfconntracksip: widen NAT rewrite delta to s32 in siphelptcp siphelptcp stores the size change of each NAT-rewritten SIP message in s16 diff and accumulates it in s16 tdiff, but a single message can grow by more than...

EUVD-2026-59634

In the Linux kernel, the following vulnerability has been resolved: netfilter: nfconntracksip: widen NAT rewrite delta to s32 in siphelptcp siphelptcp stores the size change of each NAT-rewritten SIP message in s16 diff and accumulates it in s16 tdiff, but a single message can grow by more than...

CVE-2026-72253

In the Linux kernel, the following vulnerability has been resolved: netfilter: nfconntracksip: validate skbdst before accessing it tc ingress and openvswitch do not guarantee routing information to be available. These subsystems use the conntrack helper infrastructure, and the SIP helper relies o...

UBUNTU-CVE-2026-72253

In the Linux kernel, the following vulnerability has been resolved: netfilter: nfconntracksip: validate skbdst before accessing it tc ingress and openvswitch do not guarantee routing information to be available. These subsystems use the conntrack helper infrastructure, and the SIP helper relies o...

CVE-2026-72253

In the Linux kernel, the following vulnerability has been resolved: netfilter: nfconntracksip: validate skbdst before accessing it tc ingress and openvswitch do not guarantee routing information to be available. These subsystems use the conntrack helper infrastructure, and the SIP helper relies o...

CVE-2026-72253 netfilter: nf_conntrack_sip: validate skb_dst() before accessing it

In the Linux kernel, the following vulnerability has been resolved: netfilter: nfconntracksip: validate skbdst before accessing it tc ingress and openvswitch do not guarantee routing information to be available. These subsystems use the conntrack helper infrastructure, and the SIP helper relies o...