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    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 is highly recommended to apply the patch. The problem was patched with commit 2324bcd5ba12cf28f47357a8f03cd41b7c04c52b As a workaround changes of commit 2324bcd5ba12cf28f47357a8f03cd41b7c04c52b can be applied to older versions.

    Published:Sep 9, 2020
    Last Modified:Nov 21, 2024
    EPS:Sep 9, 2020
    EPSS Score:0.00459
    CVSS Score:8.2

    Affected Products

    Vendor
    Accel-ppp
    Product
    Accel-ppp

    Exploits

    No exploit reference

    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-2020-28194 (CVSS 9.8) — Variable underflow exists in accel-ppp radius/packet.c when receiving a RADIUS vendor-specific attribute with …

    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