{"answers":{"affected":"It affects 3 products.","exploited":"There is no known exploitation of CVE-2016-5696 in the wild and no public exploit code.","fix":"Upgrade to a fixed version.","what":"CVE-2016-5696 is a medium-severity vulnerability in Google Android, published on 6 Aug 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-2016-5696 and fix it if it is affected.\n\nWhat it is: CVE-2016-5696 is a medium-severity vulnerability in Google Android, published on 6 Aug 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-2016-5696 in the wild and no public exploit code.\n\nAffected product: Google Android. 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-2016-5696/ (Markdown: https://insights.sbomify.com/CVE-2016-5696/index.md)","id":"CVE-2016-5696","markdown":"https://insights.sbomify.com/CVE-2016-5696/index.md","name":"CVE-2016-5696","record":{"aliases":["CVE-2016-5389","DEBIAN-CVE-2016-5696","GHSA-26qg-wc7f-8867","RHSA-2016:1631","RHSA-2016:1632","RHSA-2016:1633","RHSA-2016:1664","RHSA-2016:1815","RHSA-2016:1939","UBUNTU-CVE-2016-5696"],"analysis":{"component_type":"kernel","fix_type":"upgrade","impacts":["data_read","security_bypass"],"network_reachable":"yes","non_default_config":false,"product_category":"Linux kernel","requires_auth":"none","summary":"Remote attackers can hijack TCP sessions via blind in-window attacks due to improper challenge ACK rate limiting in the Linux kernel.","user_interaction":"not_required","vuln_class":"information_disclosure"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"mitre","cpe":[{"product":"android","vendor":"google"},{"product":"linux_kernel","vendor":"linux"},{"product":"vm_server","vendor":"oracle"}],"cvss":{"score":4.8,"severity":"medium","source":"nvd","vector":"CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:L","version":"3.0"},"cwes":[{"id":"CWE-200","name":"Exposure of Sensitive Information to an Unauthorized Actor"}],"description":"net/ipv4/tcp_input.c in the Linux kernel before 4.7 does not properly determine the rate of challenge ACK segments, which makes it easier for remote attackers to hijack TCP sessions via a blind in-window attack.","ecosystems":["Red Hat:enterprise_linux:6::client","Red Hat:enterprise_linux:6::computenode","Red Hat:enterprise_linux:6::server","Red Hat:enterprise_linux:6::workstation","Red Hat:enterprise_linux:7::client","Red Hat:enterprise_linux:7::computenode","Red Hat:enterprise_linux:7::server","Red Hat:enterprise_linux:7::workstation","Red Hat:enterprise_mrg:2:server:el6","Red Hat:rhel_eus:6.6::computenode","Red Hat:rhel_eus:6.6::server","Red Hat:rhel_eus:6.7::computenode","Red Hat:rhel_eus:6.7::server","Red Hat:rhel_extras_rt:7"],"exploits":{"exploitdb":0,"first_seen":"2016-08-20","github_poc":5,"max_poc_stars":102,"metasploit":0,"nuclei":0,"refs":[{"date":"2016-08-21T00:17:20Z","kind":"github_poc","ref":"https://github.com/violentshell/rover","stars":102,"title":"Proof of Concept code for CVE-2016-5696"},{"date":"2016-08-23T00:21:18Z","kind":"github_poc","ref":"https://github.com/jduck/challack","stars":76,"title":"Proof-of-concept exploit code for CVE-2016-5696"},{"date":"2016-08-20T23:28:41Z","kind":"github_poc","ref":"https://github.com/Gnoxter/mountain_goat","stars":40,"title":"A PoC demonstrating techniques exploiting CVE-2016-5696 Off-Path TCP Exploits: Global Rate Limit Considered Dangerous "},{"date":"2016-08-26T16:11:03Z","kind":"github_poc","ref":"https://github.com/bplinux/chackd","stars":2,"title":"Daemon to randomize tcp_challenge_ack_limit to prevent side channel attacks CVE-2016-5696"},{"date":"2016-12-07T18:40:47Z","kind":"github_poc","ref":"https://github.com/unkaktus/grill","stars":1,"title":"global rate-limiting in Linux (CVE-2016-5696) scanner"}],"tier":"poc_unverified"},"has_fix":true,"headline":"Information disclosure in n/a","id":"CVE-2016-5696","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":"google:android","products":["google:android","linux:linux_kernel"],"type":"information_disclosure","year":"2016"},"n_packages":257,"n_references":32,"next":{"headline":"Ruby-saml allows attackers to perform XML signature wrapping attacks","id":"CVE-2016-5697"},"packages":[{"ecosystem":"Red Hat:enterprise_linux:6::client","fixed":["0:2.6.32-642.4.2.el6"],"introduced":["0"],"last_affected":[],"package":"kernel","purl":"pkg:rpm/redhat/kernel","source":"RHSA-2016:1664"},{"ecosystem":"Red Hat:enterprise_linux:6::client","fixed":["0:2.6.32-642.4.2.el6"],"introduced":["0"],"last_affected":[],"package":"kernel-abi-whitelists","purl":"pkg:rpm/redhat/kernel-abi-whitelists","source":"RHSA-2016:1664"},{"ecosystem":"Red Hat:enterprise_linux:6::client","fixed":["0:2.6.32-642.4.2.el6"],"introduced":["0"],"last_affected":[],"package":"kernel-debug","purl":"pkg:rpm/redhat/kernel-debug","source":"RHSA-2016:1664"},{"ecosystem":"Red Hat:enterprise_linux:6::client","fixed":["0:2.6.32-642.4.2.el6"],"introduced":["0"],"last_affected":[],"package":"kernel-debug-debuginfo","purl":"pkg:rpm/redhat/kernel-debug-debuginfo","source":"RHSA-2016:1664"},{"ecosystem":"Red Hat:enterprise_linux:6::client","fixed":["0:2.6.32-642.4.2.el6"],"introduced":["0"],"last_affected":[],"package":"kernel-debug-devel","purl":"pkg:rpm/redhat/kernel-debug-devel","source":"RHSA-2016:1664"},{"ecosystem":"Red Hat:enterprise_linux:6::client","fixed":["0:2.6.32-642.4.2.el6"],"introduced":["0"],"last_affected":[],"package":"kernel-debuginfo","purl":"pkg:rpm/redhat/kernel-debuginfo","source":"RHSA-2016:1664"},{"ecosystem":"Red Hat:enterprise_linux:6::client","fixed":["0:2.6.32-642.4.2.el6"],"introduced":["0"],"last_affected":[],"package":"kernel-debuginfo-common-i686","purl":"pkg:rpm/redhat/kernel-debuginfo-common-i686","source":"RHSA-2016:1664"},{"ecosystem":"Red Hat:enterprise_linux:6::client","fixed":["0:2.6.32-642.4.2.el6"],"introduced":["0"],"last_affected":[],"package":"kernel-debuginfo-common-x86_64","purl":"pkg:rpm/redhat/kernel-debuginfo-common-x86_64","source":"RHSA-2016:1664"},{"ecosystem":"Red Hat:enterprise_linux:6::client","fixed":["0:2.6.32-642.4.2.el6"],"introduced":["0"],"last_affected":[],"package":"kernel-devel","purl":"pkg:rpm/redhat/kernel-devel","source":"RHSA-2016:1664"},{"ecosystem":"Red Hat:enterprise_linux:6::client","fixed":["0:2.6.32-642.4.2.el6"],"introduced":["0"],"last_affected":[],"package":"kernel-doc","purl":"pkg:rpm/redhat/kernel-doc","source":"RHSA-2016:1664"},{"ecosystem":"Red Hat:enterprise_linux:6::client","fixed":["0:2.6.32-642.4.2.el6"],"introduced":["0"],"last_affected":[],"package":"kernel-firmware","purl":"pkg:rpm/redhat/kernel-firmware","source":"RHSA-2016:1664"},{"ecosystem":"Red Hat:enterprise_linux:6::client","fixed":["0:2.6.32-642.4.2.el6"],"introduced":["0"],"last_affected":[],"package":"kernel-headers","purl":"pkg:rpm/redhat/kernel-headers","source":"RHSA-2016:1664"},{"ecosystem":"Red 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Hat:enterprise_linux:6::computenode","fixed":["0:2.6.32-642.4.2.el6"],"introduced":["0"],"last_affected":[],"package":"kernel","purl":"pkg:rpm/redhat/kernel","source":"RHSA-2016:1664"},{"ecosystem":"Red Hat:enterprise_linux:6::computenode","fixed":["0:2.6.32-642.4.2.el6"],"introduced":["0"],"last_affected":[],"package":"kernel-abi-whitelists","purl":"pkg:rpm/redhat/kernel-abi-whitelists","source":"RHSA-2016:1664"},{"ecosystem":"Red Hat:enterprise_linux:6::computenode","fixed":["0:2.6.32-642.4.2.el6"],"introduced":["0"],"last_affected":[],"package":"kernel-debug","purl":"pkg:rpm/redhat/kernel-debug","source":"RHSA-2016:1664"},{"ecosystem":"Red Hat:enterprise_linux:6::computenode","fixed":["0:2.6.32-642.4.2.el6"],"introduced":["0"],"last_affected":[],"package":"kernel-debug-debuginfo","purl":"pkg:rpm/redhat/kernel-debug-debuginfo","source":"RHSA-2016:1664"},{"ecosystem":"Red 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Hat:enterprise_linux:6::computenode","fixed":["0:2.6.32-642.4.2.el6"],"introduced":["0"],"last_affected":[],"package":"perf","purl":"pkg:rpm/redhat/perf","source":"RHSA-2016:1664"},{"ecosystem":"Red Hat:enterprise_linux:6::computenode","fixed":["0:2.6.32-642.4.2.el6"],"introduced":["0"],"last_affected":[],"package":"perf-debuginfo","purl":"pkg:rpm/redhat/perf-debuginfo","source":"RHSA-2016:1664"},{"ecosystem":"Red Hat:enterprise_linux:6::computenode","fixed":["0:2.6.32-642.4.2.el6"],"introduced":["0"],"last_affected":[],"package":"python-perf","purl":"pkg:rpm/redhat/python-perf","source":"RHSA-2016:1664"},{"ecosystem":"Red Hat:enterprise_linux:6::computenode","fixed":["0:2.6.32-642.4.2.el6"],"introduced":["0"],"last_affected":[],"package":"python-perf-debuginfo","purl":"pkg:rpm/redhat/python-perf-debuginfo","source":"RHSA-2016:1664"},{"ecosystem":"Red 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Hat:enterprise_linux:6::server","fixed":["0:2.6.32-642.4.2.el6"],"introduced":["0"],"last_affected":[],"package":"kernel-debug-debuginfo","purl":"pkg:rpm/redhat/kernel-debug-debuginfo","source":"RHSA-2016:1664"},{"ecosystem":"Red Hat:enterprise_linux:6::server","fixed":["0:2.6.32-642.4.2.el6"],"introduced":["0"],"last_affected":[],"package":"kernel-debug-devel","purl":"pkg:rpm/redhat/kernel-debug-devel","source":"RHSA-2016:1664"},{"ecosystem":"Red Hat:enterprise_linux:6::server","fixed":["0:2.6.32-642.4.2.el6"],"introduced":["0"],"last_affected":[],"package":"kernel-debuginfo","purl":"pkg:rpm/redhat/kernel-debuginfo","source":"RHSA-2016:1664"},{"ecosystem":"Red Hat:enterprise_linux:6::server","fixed":["0:2.6.32-642.4.2.el6"],"introduced":["0"],"last_affected":[],"package":"kernel-debuginfo-common-i686","purl":"pkg:rpm/redhat/kernel-debuginfo-common-i686","source":"RHSA-2016:1664"}],"prev":{"headline":"Other in n/a","id":"CVE-2016-5691"},"products":["n/a"],"published":"2016-08-06","related":[{"cvss_score":8.8,"headline":"Google Pixel Improper Authorization","id":"CVE-2026-58704","kev_date_added":"2026-09-16","published":"2026-09-15"},{"cvss_score":8.8,"headline":"Android Runtime Use-After-Free","id":"CVE-2025-48543","kev_date_added":"2025-09-04","published":"2025-09-04"},{"cvss_score":8.8,"headline":"Android Framework Privilege Escalation","id":"CVE-2023-35674","kev_date_added":"2023-09-13","published":"2023-09-11"},{"cvss_score":8.4,"headline":"Android Framework Integer Overflow","id":"CVE-2025-48595","kev_date_added":"2026-06-02","published":"2026-06-01"},{"cvss_score":8.1,"headline":"Android Pixel Privilege Escalation","id":"CVE-2024-32896","kev_date_added":"2024-06-13","published":"2024-06-13"},{"cvss_score":7.8,"headline":"Android Framework Privilege Escalation","id":"CVE-2025-48572","kev_date_added":"2025-12-02","published":"2025-12-08"},{"cvss_score":7.8,"headline":"Android Pixel Privilege Escalation","id":"CVE-2024-29748","kev_date_added":"2024-04-04","published":"2024-04-05"}],"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":"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)"},{"class":"open","licence":"CC0","name":"PoC-in-GitHub"}],"ssvc":{"automatable":null,"exploitation":null,"technical_impact":null},"state":"PUBLISHED","updated":"2024-08-06","vendors":["n/a"]},"summary":"Remote attackers can hijack TCP sessions via blind in-window attacks due to improper challenge ACK rate limiting in the Linux kernel.","url":"https://insights.sbomify.com/CVE-2016-5696/"}