CVE-2024-27404

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No local access is needed.\nAC:L - The remote peer controls both racing sides and their timing: it chooses when to emit the MP_JOIN SYN-ACK carrying `join_id` and when to send RM_ADDR/ADD_ADDR that schedules the PM worker, and it can repeat this across many subflows and connections until the window is hit.\nPR:N - An MPTCP-enabled listening service accepts connections from any unauthenticated remote peer, and subflow creation plus ADD_ADDR/RM_ADDR signalling occur as part of normal protocol operation with no credentials required.\nUI:N - The MPTCP option exchange and path-manager subflow handling happen automatically inside the kernel once a connection is accepted; no local user action is involved.\nS:U - The unsynchronized access and all resulting effects are confined to the kernel networking stack's own security authority, with no crossing of a VM, IOMMU, or sandbox boundary.\nC:N - `remote_id` is a u8 that is never used as an array index or pointer, and the only value exposed is the peer's own address ID via diag/netlink; no kernel memory contents are disclosed.\nI:L - Inconsistent reads let the path manager act on a wrong subflow identity \u2014 bypassing the `deny_id0` join restriction in `fill_remote_addresses_vec()` and underflowing the u8 `pm.add_addr_accepted`/`pm.local_addr_used` counters \u2014 which is limited, non-arbitrary modification of kernel connection state.\nA:H - A mismatched `remote_id` compare in `mptcp_pm_nl_rm_addr_or_subflow()` causes `mptcp_subflow_shutdown()` and `mptcp_close_ssk()` to tear down subflows the peer did not ask to remove \u2014 potentially the last remaining one, collapsing the MPTCP connection \u2014 and this is remotely and repeatably triggerable without authentication."}]}], "affected": [{"product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["net/mptcp/pm_netlink.c", "net/mptcp/subflow.c"], "versions": [{"version": "bedee0b561138346967cf1443f2afd1b48b3148f", "lessThan": "e64148635509bf13eea851986f5a0b150e5bd066", "status": "affected", "versionType": "git"}, {"version": "bedee0b561138346967cf1443f2afd1b48b3148f", "lessThan": "2dba5774e8ed326a78ad4339d921a4291281ea6e", "status": "affected", "versionType": "git"}, {"version": "bedee0b561138346967cf1443f2afd1b48b3148f", "lessThan": "987c3ed7297e5661bc7f448f06fc366e497ac9b2", "status": "affected", "versionType": "git"}, {"version": "bedee0b561138346967cf1443f2afd1b48b3148f", "lessThan": "967d3c27127e71a10ff5c083583a038606431b61", "status": "affected", "versionType": "git"}]}, {"product": "Linux", "vendor": "Linux", "defaultStatus": "affected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["net/mptcp/pm_netlink.c", "net/mptcp/subflow.c"], "versions": [{"version": "6.0", "status": "affected"}, {"version": "0", "lessThan": "6.0", "status": "unaffected", "versionType": "semver"}, {"version": "6.1.81", "lessThanOrEqual": "6.1.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.6.19", "lessThanOrEqual": "6.6.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.7.7", "lessThanOrEqual": "6.7.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.8", "lessThanOrEqual": "*", "status": "unaffected", "versionType": "original_commit_for_fix"}]}], "cpeApplicability": [{"nodes": [{"operator": "OR", "negate": false, "cpeMatch": [{"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.0", "versionEndExcluding": "6.1.81"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.0", "versionEndExcluding": "6.6.19"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.0", "versionEndExcluding": "6.7.7"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.0", "versionEndExcluding": "6.8"}]}]}], "references": [{"url": "https://git.kernel.org/stable/c/e64148635509bf13eea851986f5a0b150e5bd066"}, {"url": "https://git.kernel.org/stable/c/2dba5774e8ed326a78ad4339d921a4291281ea6e"}, {"url": "https://git.kernel.org/stable/c/987c3ed7297e5661bc7f448f06fc366e497ac9b2"}, {"url": "https://git.kernel.org/stable/c/967d3c27127e71a10ff5c083583a038606431b61"}], "title": "mptcp: fix data races on remote_id", "x_generator": {"engine": "bippy-1.2.0"}}, "adp": [{"metrics": [{"other": {"type": "ssvc", "content": {"timestamp": "2024-06-17T17:39:39.256806Z", "id": "CVE-2024-27404", "options": [{"Exploitation": "none"}, {"Automatable": "no"}, {"Technical Impact": "partial"}], "role": "CISA Coordinator", "version": "2.0.3"}}}], "title": "CISA ADP Vulnrichment", "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2024-06-17T17:43:55.610Z"}}, {"providerMetadata": {"orgId": "af854a3a-2127-422b-91ae-364da2661108", "shortName": "CVE", "dateUpdated": "2024-08-02T00:34:52.192Z"}, "title": "CVE Program Container", "references": [{"url": "https://git.kernel.org/stable/c/e64148635509bf13eea851986f5a0b150e5bd066", "tags": ["x_transferred"]}, {"url": "https://git.kernel.org/stable/c/2dba5774e8ed326a78ad4339d921a4291281ea6e", "tags": ["x_transferred"]}, {"url": "https://git.kernel.org/stable/c/987c3ed7297e5661bc7f448f06fc366e497ac9b2", "tags": ["x_transferred"]}, {"url": "https://git.kernel.org/stable/c/967d3c27127e71a10ff5c083583a038606431b61", "tags": ["x_transferred"]}]}]}}

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{"affected_release": [{"advisory": "RHSA-2024:9315", "cpe": "cpe:/a:redhat:enterprise_linux:9", "package": "kernel-0:5.14.0-503.11.1.el9_5", "product_name": "Red Hat Enterprise Linux 9", "release_date": "2024-11-12T00:00:00Z"}, {"advisory": "RHSA-2024:9315", "cpe": "cpe:/o:redhat:enterprise_linux:9", "package": "kernel-0:5.14.0-503.11.1.el9_5", "product_name": "Red Hat Enterprise Linux 9", "release_date": "2024-11-12T00:00:00Z"}], "bugzilla": {"description": "kernel: mptcp: fix data races on remote_id", "id": "2281125", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2281125"}, "csaw": false, "cvss3": {"cvss3_base_score": "5.5", "cvss3_scoring_vector": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H", "status": "verified"}, "details": ["In the Linux kernel, the following vulnerability has been resolved:\nmptcp: fix data races on remote_id\nSimilar to the previous patch, address the data race on\nremote_id, adding the suitable ONCE annotations.", "A race condition vulnerability was found in the Linux kernel remote_id function. Successful exploitation of the flaw can result in loss of system availability."], "mitigation": {"lang": "en:us", "value": "Mitigation for this issue is either not available or the currently available options don't meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base or stability."}, "name": "CVE-2024-27404", "package_state": [{"cpe": "cpe:/o:redhat:enterprise_linux:6", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 6"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Not affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Not affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 9"}], "public_date": "2024-05-17T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2024-27404\nhttps://nvd.nist.gov/vuln/detail/CVE-2024-27404\nhttps://lore.kernel.org/linux-cve-announce/2024051738-CVE-2024-27404-ab54@gregkh/T"], "threat_severity": "Moderate"}

{}