{"answers":{"affected":"It affects 5 products.","exploited":"There is no known exploitation of CVE-2016-0739 in the wild and no public exploit code.","fix":"Upgrade to a fixed version.","what":"CVE-2016-0739 is a medium-severity vulnerability in Canonical Ubuntu Linux, published on 13 Apr 2016. An attacker can exploit it over the internet without logging in, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2016-0739 and fix it if it is affected.\n\nWhat it is: CVE-2016-0739 is a medium-severity vulnerability in Canonical Ubuntu Linux, published on 13 Apr 2016. 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-2016-0739 in the wild and no public exploit code.\n\nAffected product: Canonical Ubuntu 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-2016-0739/ (Markdown: https://insights.sbomify.com/CVE-2016-0739/index.md)","id":"CVE-2016-0739","markdown":"https://insights.sbomify.com/CVE-2016-0739/index.md","name":"CVE-2016-0739","record":{"aliases":["DEBIAN-CVE-2016-0739","DLA-425-1","DSA-3488-1","GHSA-v7q8-7g48-2272","MGASA-2016-0082","RHSA-2016:0566","SUSE-SU-2016:0622-1","SUSE-SU-2016:0625-1","UBUNTU-CVE-2016-0739"],"analysis":{"component_type":"library","fix_type":"upgrade","impacts":["data_read","security_bypass"],"network_reachable":"yes","non_default_config":false,"product_category":"libssh library","requires_auth":"none","summary":"Man-in-the-middle attackers can decrypt or intercept SSH sessions due to improper truncation of ephemeral secrets in libssh key exchange methods.","user_interaction":"not_required","vuln_class":"weak_cryptography"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"redhat","cpe":[{"product":"ubuntu_linux","vendor":"canonical"},{"product":"debian_linux","vendor":"debian"},{"product":"fedora","vendor":"fedoraproject"},{"product":"libssh","vendor":"libssh"},{"product":"enterprise_linux","vendor":"redhat"}],"cvss":{"score":5.9,"severity":"medium","source":"nvd","vector":"CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N","version":"3.0"},"cwes":[{"id":"CWE-200","name":"Exposure of Sensitive Information to an Unauthorized Actor"}],"description":"libssh before 0.7.3 improperly truncates ephemeral secrets generated for the (1) diffie-hellman-group1 and (2) diffie-hellman-group14 key exchange methods to 128 bits, which makes it easier for man-in-the-middle attackers to decrypt or intercept SSH sessions via unspecified vectors, aka a \"bits/bytes confusion bug.\"","ecosystems":["Red Hat:rhel_extras_other:7","SUSE:Linux Enterprise Desktop 11 SP4","SUSE:Linux Enterprise Desktop 12","SUSE:Linux Enterprise Desktop 12 SP1","SUSE:Linux Enterprise Software Development Kit 11 SP4","SUSE:Linux Enterprise Software Development Kit 12","SUSE:Linux Enterprise Software Development Kit 12 SP1","SUSE:Linux Enterprise Workstation Extension 12","SUSE:Linux Enterprise Workstation Extension 12 SP1"],"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":"Weak cryptography in n/a","id":"CVE-2016-0739","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":"canonical:ubuntu_linux","products":["canonical:ubuntu_linux","debian:debian_linux","fedoraproject:fedora","redhat:enterprise_linux"],"type":"weak_cryptography","year":"2016"},"n_packages":11,"n_references":10,"next":{"headline":"Pillow Buffer overflow in ImagingLibTiffDecode","id":"CVE-2016-0740"},"packages":[{"ecosystem":"Red Hat:rhel_extras_other:7","fixed":["0:0.7.1-2.el7"],"introduced":["0"],"last_affected":[],"package":"libssh","purl":"pkg:rpm/redhat/libssh","source":"RHSA-2016:0566"},{"ecosystem":"Red Hat:rhel_extras_other:7","fixed":["0:0.7.1-2.el7"],"introduced":["0"],"last_affected":[],"package":"libssh-debuginfo","purl":"pkg:rpm/redhat/libssh-debuginfo","source":"RHSA-2016:0566"},{"ecosystem":"Red Hat:rhel_extras_other:7","fixed":["0:0.7.1-2.el7"],"introduced":["0"],"last_affected":[],"package":"libssh-devel","purl":"pkg:rpm/redhat/libssh-devel","source":"RHSA-2016:0566"},{"ecosystem":"SUSE:Linux Enterprise Desktop 11 SP4","fixed":["0.2-5.22.1"],"introduced":["0"],"last_affected":[],"package":"libssh","purl":"pkg:rpm/suse/libssh\u0026distro=SUSE%20Linux%20Enterprise%20Desktop%2011%20SP4","source":"SUSE-SU-2016:0622-1"},{"ecosystem":"SUSE:Linux Enterprise Desktop 12","fixed":["0.6.3-11.1"],"introduced":["0"],"last_affected":[],"package":"libssh","purl":"pkg:rpm/suse/libssh\u0026distro=SUSE%20Linux%20Enterprise%20Desktop%2012","source":"SUSE-SU-2016:0625-1"},{"ecosystem":"SUSE:Linux Enterprise Desktop 12 SP1","fixed":["0.6.3-11.1"],"introduced":["0"],"last_affected":[],"package":"libssh","purl":"pkg:rpm/suse/libssh\u0026distro=SUSE%20Linux%20Enterprise%20Desktop%2012%20SP1","source":"SUSE-SU-2016:0625-1"},{"ecosystem":"SUSE:Linux Enterprise Software Development Kit 11 SP4","fixed":["0.2-5.22.1"],"introduced":["0"],"last_affected":[],"package":"libssh","purl":"pkg:rpm/suse/libssh\u0026distro=SUSE%20Linux%20Enterprise%20Software%20Development%20Kit%2011%20SP4","source":"SUSE-SU-2016:0622-1"},{"ecosystem":"SUSE:Linux Enterprise Software Development Kit 12","fixed":["0.6.3-11.1"],"introduced":["0"],"last_affected":[],"package":"libssh","purl":"pkg:rpm/suse/libssh\u0026distro=SUSE%20Linux%20Enterprise%20Software%20Development%20Kit%2012","source":"SUSE-SU-2016:0625-1"},{"ecosystem":"SUSE:Linux Enterprise Software Development Kit 12 SP1","fixed":["0.6.3-11.1"],"introduced":["0"],"last_affected":[],"package":"libssh","purl":"pkg:rpm/suse/libssh\u0026distro=SUSE%20Linux%20Enterprise%20Software%20Development%20Kit%2012%20SP1","source":"SUSE-SU-2016:0625-1"},{"ecosystem":"SUSE:Linux Enterprise Workstation Extension 12","fixed":["0.6.3-11.1"],"introduced":["0"],"last_affected":[],"package":"libssh","purl":"pkg:rpm/suse/libssh\u0026distro=SUSE%20Linux%20Enterprise%20Workstation%20Extension%2012","source":"SUSE-SU-2016:0625-1"},{"ecosystem":"SUSE:Linux Enterprise Workstation Extension 12 SP1","fixed":["0.6.3-11.1"],"introduced":["0"],"last_affected":[],"package":"libssh","purl":"pkg:rpm/suse/libssh\u0026distro=SUSE%20Linux%20Enterprise%20Workstation%20Extension%2012%20SP1","source":"SUSE-SU-2016:0625-1"}],"prev":{"headline":"OpenStack Object Storage (Swift) allows remote attackers to cause a denial of service","id":"CVE-2016-0738"},"products":["n/a"],"published":"2016-04-13","related":[{"cvss_score":9.8,"headline":"SaltStack Salt Authentication Bypass","id":"CVE-2020-11651","kev_date_added":"2021-11-03","published":"2020-04-30"},{"cvss_score":9.8,"headline":"OpenSMTPD Remote Code Execution","id":"CVE-2020-7247","kev_date_added":"2022-03-25","published":"2020-01-29"},{"cvss_score":9.8,"headline":"Exim Out-of-bounds Write","id":"CVE-2019-16928","kev_date_added":"2022-03-03","published":"2019-09-27"},{"cvss_score":9.8,"headline":"Exim Buffer Overflow","id":"CVE-2018-6789","kev_date_added":"2021-11-03","published":"2018-02-08"},{"cvss_score":9.8,"headline":"Oracle Java SE and Java SE Embedded Remote Code Execution","id":"CVE-2015-2590","kev_date_added":"2022-03-03","published":"2015-07-16"},{"cvss_score":9.8,"headline":"Oracle JRE Remote Code Execution","id":"CVE-2013-0422","kev_date_added":"2022-05-25","published":"2013-01-10"},{"cvss_score":9.8,"headline":"Oracle Java SE Runtime Environment (JRE) Arbitrary Code Execution","id":"CVE-2011-3544","kev_date_added":"2022-03-03","published":"2011-10-19"}],"sources":[{"class":"attribution","licence":"CVE Terms of Use (MITRE)","name":"CVE List","prefix":"CVE"},{"class":"attribution","licence":"CC BY 4.0","name":"Red Hat","prefix":"RHSA"},{"class":"attribution","licence":"CC BY 4.0","name":"SUSE","prefix":"SUSE"},{"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":"2024-08-05","vendors":["n/a"]},"summary":"Man-in-the-middle attackers can decrypt or intercept SSH sessions due to improper truncation of ephemeral secrets in libssh key exchange methods.","url":"https://insights.sbomify.com/CVE-2016-0739/"}