Unity Linux 20.1050e Security Update: kernel (UTSA-2026-099988)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-099988 advisory. In the Linux kernel, the following vulnerability has been resolved: netfilter: conntrack: tcp: do not force CLOSE on invalid-seq RST without direction check An...

AZL-96003 CVE-2026-74569 affecting package kernel for versions less than 6.6.152.1-1

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...

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...

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

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...

UBUNTU-CVE-2026-72251

In the Linux kernel, the following vulnerability has been resolved: netfilter: nfnatsip: reload possible stale data pointer quoting sashiko: ------------------------------------------------------------------------ .. noticed a potential memory bug and header corruption involving the SIP NAT helpe...

CVE-2026-72251

In the Linux kernel, the following vulnerability has been resolved: netfilter: nfnatsip: reload possible stale data pointer quoting sashiko: ------------------------------------------------------------------------ .. noticed a potential memory bug and header corruption involving the SIP NAT helpe...

CVE-2026-72251 netfilter: nf_nat_sip: reload possible stale data pointer

In the Linux kernel, the following vulnerability has been resolved: netfilter: nfnatsip: reload possible stale data pointer quoting sashiko: ------------------------------------------------------------------------ .. noticed a potential memory bug and header corruption involving the SIP NAT helpe...

CVE-2026-72251 netfilter: nf_nat_sip: reload possible stale data pointer

In the Linux kernel, the following vulnerability has been resolved: netfilter: nfnatsip: reload possible stale data pointer quoting sashiko: ------------------------------------------------------------------------ .. noticed a potential memory bug and header corruption involving the SIP NAT helpe...

CVE-2026-72251

CVE-2026-72251 concerns the Linux kernel netfilter nf_nat_sip path. The issue is a memory-pointer/buffer handling flaw: if skb_ensure_writable() reallocates a cloned/fragmented skb, nf_nat_sip() may not update the destination pointer (dptr ) to the new buffer, risking a stale data pointer and pot...

PT-2026-72607

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description An issue exists in the netfilter module where the nf nat component may use an invalid nat net pointer following a failed nf nat init call. This can lead to an invalid memory access withi...

PT-2026-72439

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description A memory bug and header corruption issue exists in the SIP NAT helper within the netfilter component. In the nf nat sip function, if a cloned or fragmented socket buffer SKB is reallocat...

PT-2026-73021

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description An issue exists in the netfilter module where the sip help tcp function uses signed 16-bit integers s16 for the diff and tdiff variables to track size changes in NAT-rewritten SIP...

CVE-2026-74569: Undefined Security Weakness

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...