FreeBSD -- Multiple vulnerabilities in ppp(8)

Problem Description: ppp8 contained three memory safety errors in its handling of multilink endpoint discriminator options. mpEnddisc used incorrect length calculations when formatting endpoint discriminator addresses for display, allowing a received endpoint option to overflow a global result...

Unity Linux 20.1050e Security Update: kernel (UTSA-2026-102097)

"The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-102097 advisory. In the Linux kernel, the following vulnerability has been resolved: slip: reject VJ receive packets on instances with no rstate array slhcinit accepts rslots == 0 a...

Unity Linux 20.1050e Security Update: kernel (UTSA-2026-099928)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-099928 advisory. In the Linux kernel, the following vulnerability has been resolved: ppp: require CAPNETADMIN in target netns for unattached ioctls /dev/ppp open is currently...

OSV-2026-1161 Heap-buffer-overflow in ppp_tx_frame

OSS-Fuzz report: https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=546440470 Crash type: Heap-buffer-overflow WRITE Crash state: ppptxframe ppprx mgtcpiprx...

PT-2026-89121

OSS-Fuzz report: https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=546440470 Crash type: Heap-buffer-overflow WRITE Crash state: ppp tx frame ppp rx mg tcpip rx...

mongoose:fuzz: Heap-buffer-overflow in ppp_tx_frame

Project: https://github.com/cesanta/mongoose.git Detailed Report: https://oss-fuzz.com/testcase?key=6335440391831552 Project: mongoose Fuzzing Engine: libFuzzer Fuzz Target: fuzz Job Type: libfuzzerasanmongoose Platform Id: linux Crash Type: Heap-buffer-overflow WRITE Crash Address: 0x799c131e146...

CVE-2026-63626

Built-in TCP/IP PPP IPV6CP option parsing bounds check...

SUSE CVE-2026-68398

In the Linux kernel, the following vulnerability has been resolved: ppp: defer channel free to an RCU grace period to fix pppol2tp RX UAF pppol2tprecv runs in the L2TP UDP-encap softirq RX path: l2tpudpencaprecv - l2tprecvcommon - pppol2tprecv - pppinput&po-chan It runs under rcureadlock holding...

CVE-2026-52054

findopt zero-length PPP option -- infinite loop...

CVE-2026-68398

A flaw was found in the Linux kernel's Point-to-Point Protocol PPP over L2TP Layer 2 Tunneling Protocol implementation. An unprivileged user can exploit a Use-After-Free UAF vulnerability, where the system attempts to use memory after it has been freed. This can lead to memory corruption,...

CVE-2026-68398

In the Linux kernel, the following vulnerability has been resolved: ppp: defer channel free to an RCU grace period to fix pppol2tp RX UAF pppol2tprecv runs in the L2TP UDP-encap softirq RX path: l2tpudpencaprecv - l2tprecvcommon - pppol2tprecv - pppinput&po-chan It runs under rcureadlock holding...

CVE-2026-68398

In the Linux kernel, the following vulnerability has been resolved: ppp: defer channel free to an RCU grace period to fix pppol2tp RX UAF pppol2tprecv runs in the L2TP UDP-encap softirq RX path: l2tpudpencaprecv - l2tprecvcommon - pppol2tprecv - pppinput&po-chan It runs under rcureadlock holding...

CVE-2026-68398 ppp: defer channel free to an RCU grace period to fix pppol2tp RX UAF

In the Linux kernel, the following vulnerability has been resolved: ppp: defer channel free to an RCU grace period to fix pppol2tp RX UAF pppol2tprecv runs in the L2TP UDP-encap softirq RX path: l2tpudpencaprecv - l2tprecvcommon - pppol2tprecv - pppinput&po-chan It runs under rcureadlock holding...

CVE-2026-68398 ppp: defer channel free to an RCU grace period to fix pppol2tp RX UAF

In the Linux kernel, the following vulnerability has been resolved: ppp: defer channel free to an RCU grace period to fix pppol2tp RX UAF pppol2tprecv runs in the L2TP UDP-encap softirq RX path: l2tpudpencaprecv - l2tprecvcommon - pppol2tprecv - pppinput&po-chan It runs under rcureadlock holding...

EUVD-2026-55502

In the Linux kernel, the following vulnerability has been resolved: pppoe: reload header pointer after devhardheader pppoesendmsg saves a pointer to the PPPoE header before calling devhardheader. Device header callbacks are allowed to reallocate the skb head, invalidating pointers into it. This c...

Linux Distros Unpatched Vulnerability : CVE-2026-68398

"The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - ppp: defer channel free to an RCU grace period to fix pppol2tp RX UAF pppol2tprecv runs in the L2TP UDP-encap softirq RX path: l2tpudpencaprecv - l2tprecvcommo...

CVE-2026-19036

A security flaw has been discovered in Shibby Tomato 1.28.0000. This affects the function sub40F88C of the file /tmp/ppp/wanoptions. The manipulation of the argument pppcustom results in os command injection. The attack may be launched remotely. The exploit has been released to the public and may...

CVE-2026-19036

Shibby Tomato CVE-2026-19036 affects the wanoptions component: the function sub_40F88C in /tmp/ppp/wanoptions is vulnerable when processing the ppp_custom argument, enabling OS command injection. The issue can be triggered remotely, and public exploits exist. The affected product/version is Shibb...

CVE-2026-19036 Shibby Tomato wanoptions sub_40F88C os command injection

A security flaw has been discovered in Shibby Tomato 1.28.0000. This affects the function sub40F88C of the file /tmp/ppp/wanoptions. The manipulation of the argument pppcustom results in os command injection. The attack may be launched remotely. The exploit has been released to the public and may...

PT-2026-68480

Name of the Vulnerable Software and Affected Versions Shibby Tomato version 1.28.0000 Description A remote OS command injection flaw exists in the sub 40F88C function within the /tmp/ppp/wanoptions file. This issue occurs when the ppp custom argument is manipulated, allowing an attacker to execut...