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...

AZL-103302 CVE-2026-75883 affecting package ppp 2.5.0-1

The code in pppd that formats a response to a PEAP Request packet in peapresponse copies an entire TLS record of up to 16384 bytes into the fixed global buffer outpacketbuf without checking the available space and without implementing outgoing PEAP fragmentation. Thus a pppd process connecting to...

EulerOS Virtualization 2.11.0 : ppp (EulerOS-SA-2026-3540)

According to the versions of the ppp package installed, the EulerOS Virtualization installation on the remote host is affected by the following vulnerabilities : The passprompt plugin in pppd in ppp before 2.5.2 mishandles privileges.CVE-2024-58250 Tenable has extracted the preceding description...

EulerOS Virtualization 2.11.1 : ppp (EulerOS-SA-2026-3453)

According to the versions of the ppp package installed, the EulerOS Virtualization installation on the remote host is affected by the following vulnerabilities : The passprompt plugin in pppd in ppp before 2.5.2 mishandles privileges.CVE-2024-58250 Tenable has extracted the preceding description...

DEBIAN-CVE-2026-90083

In the Linux kernel, the following vulnerability has been resolved: net/sched: actife: Only operate on Ethernet frames actife encapsulates/decapsulates the original Ethernet header and uses skb-dev-hardheaderlen as the length of that header. That is only correct for Ethernet devices: on a device...

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 5.15

In the Linux kernel, the following vulnerabilities have been resolved: ppp: Fixed race conditions in pppfillforwardpath. pppfillforwardpath has two race conditions: 1. The ppp-channels list can change between listempty and listfirstentry, as ppplock is not held. If the only channel is deleted in...

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

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...

Astra Linux – Vulnerability in Linux

A flaw was discovered in the HDLCPPP module of the Linux kernel in versions prior to 5.9-rc7. Memory corruption and a read overflow occur due to improper input validation in the pppcpparsecr function, which can cause the system to crash or lead to a denial of service. The greatest threat posed by...

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

In the Linux kernel, the following vulnerability has been resolved: ppp: Fixed the “KMSAN: uninit-value” warning with bpf. Syzbot detected a “KMSAN: uninit-value” warning 1. This issue arises because the ppp driver does not initialize a 2-byte header when using socket filter. The following code c...

Astra Linux – Vulnerabilities in Linux, Linux-5.10, Linux-5.15, Linux-6.1

In the Linux kernel, the following vulnerability has been resolved: ppp: Rejects packets that are claimed to be LCP packets but are actually malformed packets. Since pppasyncencode assumes that the packets are valid LCP packets with codes from 1 to 7 inclusive, add pppcheckpacket to ensure that t...

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...

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...

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...