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    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 execution.

    Published:Feb 1, 2021
    Last Modified:Nov 21, 2024
    EPS:Feb 1, 2021
    EPSS Score:0.00633
    CVSS Score:9.8

    Affected Products

    Vendor
    Accel-ppp
    Product
    Accel-ppp

    Exploits

    No exploit reference

    Common Attack Pattern Enumeration and Classification (CAPEC)

    No CAPEC recorded yet

    Related CVEs

    CVE-2021-42870 (CVSS 7.5) — ACCEL-PPP 1.12.0 has an out-of-bounds read in post_msg when processing a call_clear_request.…
    CVE-2022-0982 (CVSS 9.8) — The telnet_input_char function in opt/src/accel-pppd/cli/telnet.c suffers from a memory corruption vulnerabili…
    CVE-2022-24705 (CVSS 9.8) — The rad_packet_recv function in radius/packet.c suffers from a memcpy buffer overflow, resulting in an overly-…
    CVE-2022-24704 (CVSS 9.8) — The rad_packet_recv function in opt/src/accel-pppd/radius/packet.c suffers from a buffer overflow vulnerabilit…
    CVE-2021-42054 (CVSS 7.5) — ACCEL-PPP 1.12.0 has an out-of-bounds read in triton_context_schedule if the client exits after authentication…
    CVE-2020-15173 (CVSS 8.2) — In ACCEL-PPP (an implementation of PPTP/PPPoE/L2TP/SSTP), there is a buffer overflow when receiving an l2tp co…

    Common Vulnerability Scoring System

    Attack Vector
    Network
    Adjacent
    Local
    Physical
    Privileges Required
    None
    Low
    High
    User Interaction
    None
    Required
    Scope
    Unchanged
    Changed
    Confidentiality
    None
    Low
    High
    Integrity
    None
    Low
    High
    Availability
    None
    Low
    High