{"answers":{"affected":"It affects 1 product.","exploited":"There is no known exploitation of CVE-2020-15173 in the wild and no public exploit code.","fix":"No fix has been published for CVE-2020-15173 yet. Limit exposure of the affected software until one is available.","what":"CVE-2020-15173 is a high-severity memory corruption vulnerability in accel-ppp, published on 9 Sep 2020. An attacker can exploit it over the internet without logging in, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2020-15173 and fix it if it is affected.\n\nWhat it is: CVE-2020-15173 is a high-severity memory corruption vulnerability in accel-ppp, published on 9 Sep 2020. An attacker can exploit it over the internet without logging in, with no action from the victim.\nExploitation: There is no known exploitation of CVE-2020-15173 in the wild and no public exploit code.\n\nAffected product: accel-ppp. No package-level version data is available, so check the vendor advisory linked from the reference page.\n\nTask:\n1. Search the dependency manifests and lockfiles (for example package.json, package-lock.json, requirements.txt, poetry.lock, uv.lock, pom.xml, build.gradle, go.mod, Cargo.lock, Gemfile.lock) and any Dockerfiles for the affected packages, including transitive dependencies.\n2. If an affected version is in use, upgrade it to the fixed version for its release line with the project's package manager, so the lockfile is regenerated. Prefer the smallest upgrade that fixes it.\n3. If there is no fix, or the upgrade would break the build, do not guess: explain the risk and the safest workaround instead.\n4. Run the tests and summarise what changed and why.\n5. If nothing in the project is affected, say so and change nothing.\n\nReference: https://insights.sbomify.com/CVE-2020-15173/ (Markdown: https://insights.sbomify.com/CVE-2020-15173/index.md)","id":"CVE-2020-15173","markdown":"https://insights.sbomify.com/CVE-2020-15173/index.md","name":"CVE-2020-15173","record":{"aliases":["GHSA-rr68-fchr-69vf"],"analysis":{"component_type":"network_device","fix_type":"patch","impacts":["code_execution","denial_of_service"],"network_reachable":"yes","non_default_config":false,"product_category":"PPPoE/L2TP server","requires_auth":"none","summary":"A heap buffer overflow in ACCEL-PPP allows remote attackers to execute arbitrary code or cause denial of service via crafted L2TP control packets.","user_interaction":"not_required","vuln_class":"memory_corruption"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"GitHub_M","cpe":[{"product":"accel-ppp","vendor":"accel-ppp"}],"cvss":{"score":8.2,"severity":"high","source":"cna","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:H","version":"3.1"},"cwes":[{"id":"CWE-120","name":"Buffer Copy without Checking Size of Input"},{"id":"CWE-119","name":"Improper Restriction of Operations within the Bounds of a Memory Buffer"}],"description":"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.","ecosystems":[],"exploits":{"exploitdb":0,"first_seen":null,"github_poc":0,"max_poc_stars":null,"metasploit":0,"nuclei":0,"refs":[],"tier":"none_known"},"has_fix":false,"headline":"Heap buffer overflow in ACCEL-PPP","id":"CVE-2020-15173","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"memory_corruption","year":"2020"},"n_packages":0,"n_references":2,"next":{"headline":"Unpreventable top-level navigation in Electron","id":"CVE-2020-15174"},"packages":[],"prev":{"headline":"Remote Code Execution in Act module","id":"CVE-2020-15172"},"products":["accel-ppp"],"published":"2020-09-09","related":[{"cvss_score":9.8,"headline":"Buffer Overflow via crafted client request in Accel-PPP v1.12","id":"CVE-2022-0982","kev_date_added":null,"published":"2022-03-16"},{"cvss_score":9.8,"headline":"Buffer Overflow via Crafted IPv6 Addr Attribute Type Client Request in Accel-PPP v1.12","id":"CVE-2022-24704","kev_date_added":null,"published":"2022-02-14"},{"cvss_score":9.8,"headline":"Buffer Overflow via Crafted Ipv6 Prefix Attribute Type Client Request in accel-ppp v1.12","id":"CVE-2022-24705","kev_date_added":null,"published":"2022-02-14"},{"cvss_score":9.8,"headline":"Integer overflow in n/a","id":"CVE-2020-28194","kev_date_added":null,"published":"2021-02-01"},{"cvss_score":7.5,"headline":"Memory corruption in n/a","id":"CVE-2021-42870","kev_date_added":null,"published":"2022-05-16"},{"cvss_score":7.5,"headline":"Memory corruption in n/a","id":"CVE-2021-42054","kev_date_added":null,"published":"2021-10-07"}],"sources":[{"class":"attribution","licence":"CVE Terms of Use (MITRE)","name":"CVE List","prefix":"CVE"},{"class":"attribution","licence":"US public information, NVD API terms","name":"NVD"},{"class":"attribution","licence":"CWE Terms of Use","name":"CWE (MITRE)"},{"class":"attribution","licence":"FIRST CVSS licence","name":"CVSS (FIRST)"}],"ssvc":{"automatable":null,"exploitation":null,"technical_impact":null},"state":"PUBLISHED","updated":"2024-08-04","vendors":["accel-ppp"]},"summary":"A heap buffer overflow in ACCEL-PPP allows remote attackers to execute arbitrary code or cause denial of service via crafted L2TP control packets.","url":"https://insights.sbomify.com/CVE-2020-15173/"}