CVE-2020-8597

CVE-2020-8597 ppp 2.4.2 至 2.4.8 版本中 pppd 的 eap.c 文件，在 eaprequest 和 eapresponse 函数中存在 rhostname 缓冲区溢出。 如果你能设法使 "EAP: unauthenticated peer name" 足够长（似乎我的客户端将其限制为 255），就可以触发缓冲区溢出。 你仍需绕过堆栈金丝雀（Stack Canaries），因此最常见的结果是崩溃。 root@kitploit: RELRO STACK CANARY NX PIE RPATH RUNPATH Symbols FORTIFY Fortified...

linux-kernel-codex-harness-v2

Kernel Codex Harness v2 한국어 | English Herramienta de Investigación · Importación Original: 3 de abril de 2026 · Revisión de Documentación v2: 11 de julio de 2026 Señal Externa: De la Asignación de Atención al Triage Consciente de Procedencia Usa observaciones reproducibles para guiar la atención...

kernel: ppp: require CAP_NET_ADMIN in target netns for unattached ioctls

A flaw was found in the Linux kernel's Point-to-Point Protocol PPP subsystem. A local unprivileged user can exploit this vulnerability by creating a new user namespace and bypassing authorization checks for unattached administrative input/output controls ioctls. This allows the user to perform...

Astra Linux – Vulnerability found in Linux 6.1, Linux 6.12

In the Linux kernel, the following vulnerability has been resolved: ppp: The requirement for CAPNETADMIN in the target netns is necessary for unattached IOCTls. The opening of /dev/ppp is currently allowed for file-fcred-userns, while unattached administrative IOCTls operate on...

CVE-2026-58096

LcpDecodeConfig did not validate the length of received endpoint discriminator options against the minimum required by RFC 1717. Undersized options would trigger an out-of-bounds write. A malicious PPP peer can exploit CVE-2026-58095 and CVE-2026-58096 to crash ppp8 or potentially execute arbitra...

CVE-2026-58095

mpEnddisc used incorrect length calculations when formatting endpoint discriminator addresses for display, allowing a received endpoint option to overflow a global result buffer. A malicious PPP peer can crash ppp8 or potentially execute arbitrary code as root...

CVE-2026-58097

mpSetEnddisc copied a user-supplied PSN endpoint value without length validation, allowing a buffer overflow via the ppp8 command interface. A local user with access to the ppp8 command interface can crash ppp8 or potentially execute arbitrary code as root...

CVE-2026-58097 ppp(8): missing length validation in mp_SetEnddisc()

mpSetEnddisc copied a user-supplied PSN endpoint value without length validation, allowing a buffer overflow via the ppp8 command interface. A local user with access to the ppp8 command interface can crash ppp8 or potentially execute arbitrary code as root...

EUVD-2026-66248

mpSetEnddisc copied a user-supplied PSN endpoint value without length validation, allowing a buffer overflow via the ppp8 command interface. A local user with access to the ppp8 command interface can crash ppp8 or potentially execute arbitrary code as root...

CVE-2026-58097

FreeBSD ppp(8) contains a buffer overflow in mp_SetEnddisc() , which copies a user-supplied PSN endpoint discriminator value without length validation. A local user in the "network" group (required to run the setuid-root ppp(8)) can exploit this via the command interface to crash ppp(8) or potent...

CVE-2026-58096 ppp(8): missing length validation in LcpDecodeConfig()

LcpDecodeConfig did not validate the length of received endpoint discriminator options against the minimum required by RFC 1717. Undersized options would trigger an out-of-bounds write. A malicious PPP peer can exploit CVE-2026-58095 and CVE-2026-58096 to crash ppp8 or potentially execute arbitra...

CVE-2026-58096 ppp(8): missing length validation in LcpDecodeConfig()

LcpDecodeConfig did not validate the length of received endpoint discriminator options against the minimum required by RFC 1717. Undersized options would trigger an out-of-bounds write. A malicious PPP peer can exploit CVE-2026-58095 and CVE-2026-58096 to crash ppp8 or potentially execute arbitra...

CVE-2026-58096

FreeBSD ppp(8) contains an out-of-bounds write in LcpDecodeConfig(), which failed to validate the length of received multilink endpoint discriminator options against the minimum required by RFC 1717 . A malicious PPP peer can trigger the bug with undersized options, potentially crashing ppp(8) or...

EUVD-2026-66247

LcpDecodeConfig did not validate the length of received endpoint discriminator options against the minimum required by RFC 1717. Undersized options would trigger an out-of-bounds write. A malicious PPP peer can exploit CVE-2026-58095 and CVE-2026-58096 to crash ppp8 or potentially execute arbitra...

CVE-2026-58095

FreeBSD's ppp(8) (a setuid-root PPP implementation) contained a buffer overflow in mp_Enddisc() , which used incorrect length calculations when formatting multilink endpoint discriminator addresses. A malicious PPP peer could send a crafted endpoint option to overflow a global result buffer , pot...

CVE-2026-58095 ppp(8): incorrect length calculation in mp_Enddisc()

mpEnddisc used incorrect length calculations when formatting endpoint discriminator addresses for display, allowing a received endpoint option to overflow a global result buffer. A malicious PPP peer can crash ppp8 or potentially execute arbitrary code as root...

CVE-2026-58095 ppp(8): incorrect length calculation in mp_Enddisc()

mpEnddisc used incorrect length calculations when formatting endpoint discriminator addresses for display, allowing a received endpoint option to overflow a global result buffer. A malicious PPP peer can crash ppp8 or potentially execute arbitrary code as root...

FreeBSD : FreeBSD -- Multiple vulnerabilities in ppp(8) (204af099-a0ff-11f1-ae1f-bc241121aa0a)

The version of FreeBSD installed on the remote host is prior to tested version. It is, therefore, affected by multiple vulnerabilities as referenced in the 204af099-a0ff-11f1-ae1f-bc241121aa0a advisory. ppp8 contained three memory safety errors in its handling of multilink endpoint discriminator...

Unity Linux 20.1050a Security Update: kernel (UTSA-2026-098940)

"The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-098940 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 / 20.1060e / 20.1070e Security Update: tcpdump (UTSA-2026-093168)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-093168 advisory. The ppp decapsulator in tcpdump 4.9.3 can be convinced to allocate a large amount of memory. Tenable has extracted the preceding description block directly from the...