{"answers":{"affected":"It affects 4 products.","exploited":"There is no known exploitation of CVE-2020-15953 in the wild and no public exploit code.","fix":"Upgrade to a fixed version.","what":"CVE-2020-15953 is a high-severity vulnerability in Debian Debian Linux, published on 27 Jul 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-2020-15953 and fix it if it is affected.\n\nWhat it is: CVE-2020-15953 is a high-severity vulnerability in Debian Debian Linux, published on 27 Jul 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-2020-15953 in the wild and no public exploit code.\n\nAffected product: Debian Debian Linux. 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-2020-15953/ (Markdown: https://insights.sbomify.com/CVE-2020-15953/index.md)","id":"CVE-2020-15953","markdown":"https://insights.sbomify.com/CVE-2020-15953/index.md","name":"CVE-2020-15953","record":{"aliases":["DEBIAN-CVE-2020-15953","DLA-2329-1","GHSA-f329-rp43-94r4","MGASA-2020-0366","UBUNTU-CVE-2020-15953","USN-4598-1","openSUSE-SU-2020:1454-1","openSUSE-SU-2020:1505-1"],"analysis":{"component_type":"library","fix_type":"upgrade","impacts":["security_bypass"],"network_reachable":"yes","non_default_config":false,"product_category":"LibEtPan email library","requires_auth":"none","summary":"A STARTTLS buffering flaw in LibEtPan allows attackers to inject responses into the TLS context, bypassing security checks.","user_interaction":"not_required","vuln_class":"other"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"mitre","cpe":[{"product":"debian_linux","vendor":"debian"},{"product":"fedora","vendor":"fedoraproject"},{"product":"libetpan","vendor":"libetpan_project"},{"product":"mailcore2","vendor":"libmailcore"}],"cvss":{"score":7.4,"severity":"high","source":"nvd","vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N","version":"3.1"},"cwes":[{"id":"CWE-74","name":"Improper Neutralization of Special Elements in Output Used by a Downstream Component"}],"description":"LibEtPan through 1.9.4, as used in MailCore 2 through 0.6.3 and other products, has a STARTTLS buffering issue that affects IMAP, SMTP, and POP3. When a server sends a \"begin TLS\" response, the client reads additional data (e.g., from a meddler-in-the-middle attacker) and evaluates it in a TLS context, aka \"response injection.\"","ecosystems":["SUSE:Package Hub 15 SP2","openSUSE:Leap 15.2"],"exploits":{"exploitdb":0,"first_seen":null,"github_poc":0,"max_poc_stars":null,"metasploit":0,"nuclei":0,"refs":[],"tier":"none_known"},"has_fix":true,"headline":"Other in n/a","id":"CVE-2020-15953","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":"debian:debian_linux","products":["debian:debian_linux","fedoraproject:fedora"],"type":"other","year":"2020"},"n_packages":2,"n_references":7,"next":{"headline":"Weak cryptography in n/a","id":"CVE-2020-15954"},"packages":[{"ecosystem":"SUSE:Package Hub 15 SP2","fixed":["1.9.4-bp152.4.3.1"],"introduced":["0"],"last_affected":[],"package":"libetpan","purl":"pkg:rpm/suse/libetpan\u0026distro=SUSE%20Package%20Hub%2015%20SP2","source":"openSUSE-SU-2020:1505-1"},{"ecosystem":"openSUSE:Leap 15.2","fixed":["1.9.4-lp152.3.3.1"],"introduced":["0"],"last_affected":[],"package":"libetpan","purl":"pkg:rpm/opensuse/libetpan\u0026distro=openSUSE%20Leap%2015.2","source":"openSUSE-SU-2020:1454-1"}],"prev":{"headline":"Cross-site scripting in n/a","id":"CVE-2020-15952"},"products":["n/a"],"published":"2020-07-27","related":[{"cvss_score":10,"headline":"ProFTPD Improper Access Control","id":"CVE-2015-3306","kev_date_added":"2026-10-08","published":"2015-05-18"},{"cvss_score":9.9,"headline":"RoundCube Webmail Deserialization of Untrusted Data","id":"CVE-2025-49113","kev_date_added":"2026-02-20","published":"2025-06-02"},{"cvss_score":9.8,"headline":"GNU InetUtils Argument Injection","id":"CVE-2026-24061","kev_date_added":"2026-01-26","published":"2026-01-21"},{"cvss_score":9.8,"headline":"Linux Kernel Improper Check for Unusual or Exceptional Conditions","id":"CVE-2025-39682","kev_date_added":"2026-09-18","published":"2025-09-05"},{"cvss_score":9.8,"headline":"Mozilla Firefox Use-After-Free","id":"CVE-2024-9680","kev_date_added":"2024-10-15","published":"2024-10-09"},{"cvss_score":9.8,"headline":"RARLAB UnRAR Directory Traversal","id":"CVE-2022-30333","kev_date_added":"2022-08-09","published":"2022-05-09"},{"cvss_score":9.8,"headline":"Roundcube Webmail SQL Injection","id":"CVE-2021-44026","kev_date_added":"2023-06-22","published":"2021-11-19"}],"sources":[{"class":"attribution","licence":"CVE Terms of Use (MITRE)","name":"CVE List","prefix":"CVE"},{"class":"attribution","licence":"CC BY 4.0","name":"SUSE","prefix":"openSUSE"},{"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":["n/a"]},"summary":"A STARTTLS buffering flaw in LibEtPan allows attackers to inject responses into the TLS context, bypassing security checks.","url":"https://insights.sbomify.com/CVE-2020-15953/"}