Point-to-Point-Protocol-Daemon-RCE-Vulnerability-CVE-2020-8597-

Point-to-Point-Protocol-Daemon-RCE-취약점-CVE-2020-8597- 스리랑카 정보기술 연구소 과제 1 M. P. D. M. Dias IT19165530 MLBWDY2S113.1 지점간 프로토콜 데몬 RCE 취약점 CVE-2020-8597 시스템 및 네트워크 프로그래밍– IE2012 목차 1. 소개 2. 취약점 발견자 참조 3. 발견 방법 4. 발견 시기 5. 초래할 수 있는 피해 6. 공격 기술 7. 선택한 공격 방법 8. 익스플로잇 스크린샷 9. 결론 10. 참고문헌 소개 지점간 프로토콜PPP은...

CVE-2026-68121

Summary of CVE-2026-68121 (Linux kernel, PPPoE): A vulnerability arises when device header callbacks reallocate the skb head after PPPoE header is referenced, causing a stale pointer to the PPPoE header used by pppoe_sendmsg(). This can occur if a send is blocked in copy_from_user() while a non-E...

SUSE CVE-2026-63803

In the Linux kernel, the following vulnerability has been resolved: hdlcppp: sync per-proto timers before freeing hdlc state Each PPP control protocol LCP/IPCP/IPV6CP embedded in struct ppp registers a timer via timersetup. That struct ppp is the hdlc-state allocation, which detachhdlcprotocol...

CVE-2026-63803 hdlc_ppp: sync per-proto timers before freeing hdlc state

In the Linux kernel, the following vulnerability has been resolved: hdlcppp: sync per-proto timers before freeing hdlc state Each PPP control protocol LCP/IPCP/IPV6CP embedded in struct ppp registers a timer via timersetup. That struct ppp is the hdlc-state allocation, which detachhdlcprotocol...

OESA-2026-2992 kernel security update

The Linux Kernel, the operating system core itself. Security Fixes: In the Linux kernel, the following vulnerability has been resolved: ppp: require CAPNETADMIN in target netns for unattached ioctls /dev/ppp open is currently authorized against file-fcred-userns, while unattached administrative...

ppp: require CAP_NET_ADMIN in target netns for unattached ioctls

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CVE-2026-53075

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-2026-53075 ppp: require CAP_NET_ADMIN in target netns for unattached ioctls

In the Linux kernel, the following vulnerability has been resolved: ppp: require CAPNETADMIN in target netns for unattached ioctls /dev/ppp open is currently authorized against file-fcred-userns, while unattached administrative ioctls operate on current-nsproxy-netns. As a result, a local...

CVE-2026-46306

In the Linux kernel, the following vulnerability has been resolved: flowdissector: do not dissect PPPoE PFC frames RFC 2516 Section 7 states that Protocol Field Compression PFC is NOT RECOMMENDED for PPPoE. In practice, pppd does not support negotiating PFC for PPPoE sessions, and the flow...

CVE-2026-45842

A flaw was found in the Linux kernel's SLIP Serial Line Internet Protocol and PPP Point-to-Point Protocol components. An unprivileged local user can exploit this vulnerability by manipulating the PPPIOCSMAXCID ioctl to configure the SLIP Compressed Header SLHC state incorrectly. This...

CVE-2026-45842

CVE-2026-45842 concerns the Linux kernel slip module. When rslots are configured to 0 (no receive compression), the code may allocate a NULL rstate and set rslot_limit to 0. The receive path does not guard against this, causing slhc_uncompress() to dereference comp->rstate[x] if the VJ header ...

ROS-20260407-73-0024

A vulnerability in the Linux operating system kernel ppp driver is related to simultaneous execution using a shared resource with improper synchronization. Exploitation of the vulnerability allows an attacker to cause a denial of service...

(Pwn2Own) QNAP QHora-322 ip6_wanifset Improper Restriction of Communication Channel to Intended Endpoints Firewall Bypass Vulnerability

This vulnerability allows network-adjacent attackers to bypass firewall rules on affected installations of QNAP QHora-322 routers. Authentication is not required to exploit this vulnerability. The specific flaw exists within the implementation of firewall rules. The issue results from failing to...

OESA-2026-1231 kernel security update

The Linux Kernel, the operating system core itself. Security Fixes: In the Linux kernel, the following vulnerability has been resolved: scsi: libsas: Fix use-after-free bug in smpexecutetasksg When executing SMP task failed, the smpexecutetasksg calls deltimer to delete "slowtask-timer". However,...

Azure Linux 3.0 Security Update: ppp (CVE-2020-8597)

The version of ppp installed on the remote Azure Linux 3.0 host is prior to tested version. It is, therefore, affected by a vulnerability as referenced in the CVE-2020-8597 advisory. - eap.c in pppd in ppp 2.4.2 through 2.4.8 has an rhostname buffer overflow in the eaprequest and eapresponse...

EulerOS Virtualization 2.10.1 : ppp (EulerOS-SA-2026-1005)

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-2022-50655

In the Linux kernel, the following vulnerability has been resolved: ppp: associate skb with a device at tx Syzkaller triggered flow dissector warning with the following: r0 = openat$ppp0xffffffffffffff9c, &0x7f0000000000, 0xc0802, 0x0 ioctl$PPPIOCNEWUNITr0, 0xc004743e, &0x7f00000000c0...

CVE-2022-50655 ppp: associate skb with a device at tx

In the Linux kernel, the following vulnerability has been resolved: ppp: associate skb with a device at tx Syzkaller triggered flow dissector warning with the following: r0 = openat$ppp0xffffffffffffff9c, &0x7f0000000000, 0xc0802, 0x0 ioctl$PPPIOCNEWUNITr0, 0xc004743e, &0x7f00000000c0...

PT-2025-49669

Name of the Vulnerable Software and Affected Versions Linux kernel versions prior to 6.2.0-rc5-00205-gc96618275234 56 Description The Linux kernel contains a flaw in the l2tp implementation that can lead to a recursive deadlock within the l2tp tunnel register function. This occurs when a file...

kernel: net: ppp: Add bound checking for skb data on ppp_sync_txmung

An out-of-bounds read vulnerability exists in the pppsynctxmunge function in the Linux kernel's PPP subsystem. Insufficient bounds checking on incoming PPP packets may lead to a kernel crash if a packet with an empty or truncated payload is processed...