Ppp Security Vulnerabilities

CVE-2022-4603

A vulnerability classified as problematic has been found in ppp. Affected is the function dumpppp of the file pppdump/pppdump.c of the component pppdump. The manipulation of the argument spkt.buf/rpkt.buf leads to improper validation of array index. The real existence of this vulnerability is...

CVE-2008-5367

ip-up in ppp-udeb 2.4.4rel on Debian GNU/Linux allows local users to overwrite arbitrary files via a symlink attack on the /tmp/resolv.conf.tmp temporary...

CVE-2021-42870

ACCEL-PPP 1.12.0 has an out-of-bounds read in post_msg when processing a...

CVE-2022-0982

The telnet_input_char function in opt/src/accel-pppd/cli/telnet.c suffers from a memory corruption vulnerability, whereby user input cmdline_len is copied into a fixed buffer b->buf without any bound checks. If the server connects with a malicious client, crafted client requests can remotely...

CVE-2022-24705

The rad_packet_recv function in radius/packet.c suffers from a memcpy buffer overflow, resulting in an overly-large recvfrom into a fixed buffer that causes a buffer overflow and overwrites arbitrary memory. If the server connects with a malicious client, crafted client requests can remotely...

CVE-2022-24704

The rad_packet_recv function in opt/src/accel-pppd/radius/packet.c suffers from a buffer overflow vulnerability, whereby user input len is copied into a fixed buffer &attr->val.integer without any bound checks. If the client connects to the server and sends a large radius packet, a buffer overfl...

CVE-2021-42054

ACCEL-PPP 1.12.0 has an out-of-bounds read in triton_context_schedule if the client exits after...

CVE-2020-28194

Variable underflow exists in accel-ppp radius/packet.c when receiving a RADIUS vendor-specific attribute with length field is less than 2. It has an impact only when the attacker controls the RADIUS server, which can lead to arbitrary code...

CVE-2020-7466

The PPP implementation of MPD before 5.9 allows a remote attacker who can send specifically crafted PPP authentication message to cause the daemon to read beyond allocated memory buffer, which would result in a denial of service...

CVE-2020-7465

The L2TP implementation of MPD before 5.9 allows a remote attacker who can send specifically crafted L2TP control packet with AVP Q.931 Cause Code to execute arbitrary code or cause a denial of service (memory...

CVE-2020-15173

In ACCEL-PPP (an implementation of PPTP/PPPoE/L2TP/SSTP), there is a buffer overflow when receiving an l2tp control packet ith an AVP which type is a string and no hidden flags, length set to less than 6. If your application is used in open networks or there are untrusted nodes in the network it...

CVE-2020-15704

The modprobe child process in the ./debian/patches/load_ppp_generic_if_needed patch file incorrectly handled module loading. A local non-root attacker could exploit the MODPROBE_OPTIONS environment variable to read arbitrary root files. Fixed in 2.4.5-5ubuntu1.4, 2.4.5-5.1ubuntu2.3+esm2,...

CVE-2008-5366

The postinst script in ppp 2.4.4rel on Debian GNU/Linux allows local users to overwrite arbitrary files via a symlink attack on the (1) /tmp/probe-finished or (2) /tmp/ppp-errors temporary...

CVE-2004-1002

Integer underflow in pppd in cbcp.c for ppp 2.4.1 allows remote attackers to cause a denial of service (daemon crash) via a CBCP packet with an invalid length value that causes pppd to access an incorrect memory...

CVE-1999-1203

Multilink PPP for ISDN dialup users in Ascend before 4.6 allows remote attackers to cause a denial of service via a spoofed endpoint...