{"dataType": "CVE_RECORD", "dataVersion": "5.1", "cveMetadata": {"cveId": "CVE-2023-52941", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2024-08-21T06:07:11.022Z", "datePublished": "2025-03-27T16:37:19.469Z", "dateUpdated": "2025-05-04T12:49:55.905Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2025-05-04T12:49:55.905Z"}, "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ncan: isotp: split tx timer into transmission and timeout\n\nThe timer for the transmission of isotp PDUs formerly had two functions:\n1. send two consecutive frames with a given time gap\n2. monitor the timeouts for flow control frames and the echo frames\n\nThis led to larger txstate checks and potentially to a problem discovered\nby syzbot which enabled the panic_on_warn feature while testing.\n\nThe former 'txtimer' function is split into 'txfrtimer' and 'txtimer'\nto handle the two above functionalities with separate timer callbacks.\n\nThe two simplified timers now run in one-shot mode and make the state\ntransitions (especially with isotp_rcv_echo) better understandable."}], "affected": [{"product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["net/can/isotp.c"], "versions": [{"version": "866337865f3747c68a3e7bb837611e39cec1ecd6", "lessThan": "cae4c9bc35f72af5d4a079bb9d9fd62c4088a411", "status": "affected", "versionType": "git"}, {"version": "866337865f3747c68a3e7bb837611e39cec1ecd6", "lessThan": "4f027cba8216f42a18b544842efab134f8b1f9f4", "status": "affected", "versionType": "git"}, {"version": "3cb476cf834edca47f4470c276feb0f519401fb7", "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/can/isotp.c"], "versions": [{"version": "6.1", "status": "affected"}, {"version": "0", "lessThan": "6.1", "status": "unaffected", "versionType": "semver"}, {"version": "6.1.11", "lessThanOrEqual": "6.1.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.2", "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": "6.1", "versionEndExcluding": "6.1.11"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.1", "versionEndExcluding": "6.2"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.0.9"}]}]}], "references": [{"url": "https://git.kernel.org/stable/c/cae4c9bc35f72af5d4a079bb9d9fd62c4088a411"}, {"url": "https://git.kernel.org/stable/c/4f027cba8216f42a18b544842efab134f8b1f9f4"}], "title": "can: isotp: split tx timer into transmission and timeout", "x_generator": {"engine": "bippy-1.2.0"}}}}

{}

{"cveTags": [], "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ncan: isotp: split tx timer into transmission and timeout\n\nThe timer for the transmission of isotp PDUs formerly had two functions:\n1. send two consecutive frames with a given time gap\n2. monitor the timeouts for flow control frames and the echo frames\n\nThis led to larger txstate checks and potentially to a problem discovered\nby syzbot which enabled the panic_on_warn feature while testing.\n\nThe former 'txtimer' function is split into 'txfrtimer' and 'txtimer'\nto handle the two above functionalities with separate timer callbacks.\n\nThe two simplified timers now run in one-shot mode and make the state\ntransitions (especially with isotp_rcv_echo) better understandable."}], "id": "CVE-2023-52941", "lastModified": "2025-03-28T18:11:49.747", "metrics": {}, "published": "2025-03-27T17:15:44.043", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/4f027cba8216f42a18b544842efab134f8b1f9f4"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/cae4c9bc35f72af5d4a079bb9d9fd62c4088a411"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Awaiting Analysis"}

{"bugzilla": {"description": "kernel: can: isotp: split tx timer into transmission and timeout", "id": "2355482", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2355482"}, "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": "draft"}, "details": ["In the Linux kernel, the following vulnerability has been resolved:\ncan: isotp: split tx timer into transmission and timeout\nThe timer for the transmission of isotp PDUs formerly had two functions:\n1. send two consecutive frames with a given time gap\n2. monitor the timeouts for flow control frames and the echo frames\nThis led to larger txstate checks and potentially to a problem discovered\nby syzbot which enabled the panic_on_warn feature while testing.\nThe former 'txtimer' function is split into 'txfrtimer' and 'txtimer'\nto handle the two above functionalities with separate timer callbacks.\nThe two simplified timers now run in one-shot mode and make the state\ntransitions (especially with isotp_rcv_echo) better understandable."], "name": "CVE-2023-52941", "package_state": [{"cpe": "cpe:/o:redhat:enterprise_linux:10", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 10"}, {"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": "Fix deferred", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 9"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Fix deferred", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 9"}], "public_date": "2025-03-27T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2023-52941\nhttps://nvd.nist.gov/vuln/detail/CVE-2023-52941\nhttps://lore.kernel.org/linux-cve-announce/2025032722-CVE-2023-52941-7c12@gregkh/T"], "threat_severity": "Low"}