{"answers":{"affected":"12 open source packages ship an affected version, including ch.qos.logback:logback-classic and ch.qos.logback:logback-core. It affects 1 product.","exploited":"There is no known exploitation of CVE-2023-6378 in the wild and no public exploit code.","fix":"Upgrade ch.qos.logback:logback-classic to a fixed version for your release line: 1.2.13, 1.3.12 or 1.4.12.","what":"CVE-2023-6378 is a high-severity unsafe deserialization vulnerability in QOS.CH Sarl logback, published on 29 Nov 2023. It can only be exploited from the same machine or local network, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2023-6378 and fix it if it is affected.\n\nWhat it is: CVE-2023-6378 is a high-severity unsafe deserialization vulnerability in QOS.CH Sarl logback, published on 29 Nov 2023. It can only be exploited from the same machine or local network, with no action from the victim.\nExploitation: There is no known exploitation of CVE-2023-6378 in the wild and no public exploit code.\n\nAffected packages and fixed versions:\n- ch.qos.logback:logback-classic (Maven): affected all versions; fixed in 1.2.13\n- ch.qos.logback:logback-classic (Maven): affected all versions; fixed in 1.2.13\n- ch.qos.logback:logback-classic (Maven): affected from 1.3.0; fixed in 1.3.12\n- ch.qos.logback:logback-classic (Maven): affected from 1.3.0; fixed in 1.3.12\n- ch.qos.logback:logback-classic (Maven): affected from 1.4.0; fixed in 1.4.12\n- ch.qos.logback:logback-classic (Maven): affected from 1.4.0; fixed in 1.4.12\n- ch.qos.logback:logback-core (Maven): affected all versions; fixed in 1.2.13\n- ch.qos.logback:logback-core (Maven): affected all versions; fixed in 1.2.13\n- ch.qos.logback:logback-core (Maven): affected from 1.3.0; fixed in 1.3.12\n- ch.qos.logback:logback-core (Maven): affected from 1.3.0; fixed in 1.3.12\n- ch.qos.logback:logback-core (Maven): affected from 1.4.0; fixed in 1.4.12\n- ch.qos.logback:logback-core (Maven): affected from 1.4.0; fixed in 1.4.12\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-2023-6378/ (Markdown: https://insights.sbomify.com/CVE-2023-6378/index.md)","id":"CVE-2023-6378","markdown":"https://insights.sbomify.com/CVE-2023-6378/index.md","name":"CVE-2023-6378","record":{"aliases":["CLEANSTART-2026-BZ13622","CLEANSTART-2026-IB17360","DEBIAN-CVE-2023-6378","ECHO-042f-77a6-c297","GHSA-vmq6-5m68-f53m","MINI-364p-p32q-2x4h","MINI-f6x7-xhv9-x89q","MINI-xwff-p4rp-mcgx","RHLW-2026-271a386ee9cf984f","ROOT-APP-MAVEN-CVE-2023-6378","UBUNTU-CVE-2023-6378"],"analysis":{"component_type":"library","fix_type":"upgrade","impacts":["denial_of_service"],"network_reachable":"adjacent_or_local","non_default_config":true,"product_category":"Java logging library","requires_auth":"none","summary":"An attacker can cause a Denial of Service in Logback by sending poisoned data to the receiver component, which requires the receiver to be enabled.","user_interaction":"not_required","vuln_class":"deserialization"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"NCSC.ch","cpe":[{"product":"logback","vendor":"qos"}],"cvss":{"score":7.1,"severity":"high","source":"cna","vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H","version":"3.1"},"cwes":[{"id":"CWE-502","name":"Deserialization of Untrusted Data"}],"description":"A serialization vulnerability in logback receiver component part of \nlogback version 1.4.11 allows an attacker to mount a Denial-Of-Service \nattack by sending poisoned data.","ecosystems":["Maven"],"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":"Logback \"receiver\" DOS vulnerability","id":"CVE-2023-6378","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":"Maven","product":null,"products":[],"type":"deserialization","year":"2023"},"n_packages":12,"n_references":1,"next":{"headline":"Cross-site Scripting in Alkacon Software OpenCms","id":"CVE-2023-6379"},"packages":[{"ecosystem":"Maven","fixed":["1.2.13"],"introduced":["0"],"last_affected":[],"package":"ch.qos.logback:logback-classic","purl":null,"source":"GHSA-vmq6-5m68-f53m"},{"ecosystem":"Maven","fixed":["1.2.13"],"introduced":["0"],"last_affected":[],"package":"ch.qos.logback:logback-classic","purl":"pkg:maven/ch.qos.logback/logback-classic","source":"GHSA-vmq6-5m68-f53m"},{"ecosystem":"Maven","fixed":["1.3.12"],"introduced":["1.3.0"],"last_affected":[],"package":"ch.qos.logback:logback-classic","purl":null,"source":"GHSA-vmq6-5m68-f53m"},{"ecosystem":"Maven","fixed":["1.3.12"],"introduced":["1.3.0"],"last_affected":[],"package":"ch.qos.logback:logback-classic","purl":"pkg:maven/ch.qos.logback/logback-classic","source":"GHSA-vmq6-5m68-f53m"},{"ecosystem":"Maven","fixed":["1.4.12"],"introduced":["1.4.0"],"last_affected":[],"package":"ch.qos.logback:logback-classic","purl":null,"source":"GHSA-vmq6-5m68-f53m"},{"ecosystem":"Maven","fixed":["1.4.12"],"introduced":["1.4.0"],"last_affected":[],"package":"ch.qos.logback:logback-classic","purl":"pkg:maven/ch.qos.logback/logback-classic","source":"GHSA-vmq6-5m68-f53m"},{"ecosystem":"Maven","fixed":["1.2.13"],"introduced":["0"],"last_affected":[],"package":"ch.qos.logback:logback-core","purl":null,"source":"GHSA-vmq6-5m68-f53m"},{"ecosystem":"Maven","fixed":["1.2.13"],"introduced":["0"],"last_affected":[],"package":"ch.qos.logback:logback-core","purl":"pkg:maven/ch.qos.logback/logback-core","source":"GHSA-vmq6-5m68-f53m"},{"ecosystem":"Maven","fixed":["1.3.12"],"introduced":["1.3.0"],"last_affected":[],"package":"ch.qos.logback:logback-core","purl":null,"source":"GHSA-vmq6-5m68-f53m"},{"ecosystem":"Maven","fixed":["1.3.12"],"introduced":["1.3.0"],"last_affected":[],"package":"ch.qos.logback:logback-core","purl":"pkg:maven/ch.qos.logback/logback-core","source":"GHSA-vmq6-5m68-f53m"},{"ecosystem":"Maven","fixed":["1.4.12"],"introduced":["1.4.0"],"last_affected":[],"package":"ch.qos.logback:logback-core","purl":null,"source":"GHSA-vmq6-5m68-f53m"},{"ecosystem":"Maven","fixed":["1.4.12"],"introduced":["1.4.0"],"last_affected":[],"package":"ch.qos.logback:logback-core","purl":"pkg:maven/ch.qos.logback/logback-core","source":"GHSA-vmq6-5m68-f53m"}],"prev":{"headline":"Xorg-x11-server: out-of-bounds memory reads/writes in xkb button actions","id":"CVE-2023-6377"},"products":["logback"],"published":"2023-11-29","related":[{"cvss_score":9.8,"headline":"QOS.ch Logback vulnerable to Deserialization of Untrusted Data","id":"CVE-2017-5929","kev_date_added":null,"published":"2017-03-13"},{"cvss_score":7.1,"headline":"Logback \"receiver\" DOS vulnerability CVE-2023-6378 incomplete fix","id":"CVE-2023-6481","kev_date_added":null,"published":"2023-12-04"}],"sources":[{"class":"attribution","licence":"CVE Terms of Use (MITRE)","name":"CVE List","prefix":"CVE"},{"class":"attribution","licence":"CC BY 4.0","name":"GitHub Advisory Database","prefix":"GHSA"},{"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":"no","exploitation":"none","technical_impact":"partial"},"state":"PUBLISHED","updated":"2024-11-29","vendors":["QOS.CH Sarl"]},"summary":"An attacker can cause a Denial of Service in Logback by sending poisoned data to the receiver component, which requires the receiver to be enabled.","url":"https://insights.sbomify.com/CVE-2023-6378/"}