CVE-2023-52633 - OpenCVE

In the Linux kernel, the following vulnerability has been resolved: um: time-travel: fix time corruption In 'basic' time-travel mode (without =inf-cpu or =ext), we still get timer interrupts. These can happen at arbitrary points in time, i.e. while in timer_read(), which pushes time forward just a little bit. Then, if we happen to get the interrupt after calculating the new time to push to, but before actually finishing that, the interrupt will set the time to a value that's incompatible with the forward, and we'll crash because time goes backwards when we do the forwarding. Fix this by reading the time_travel_time, calculating the adjustment, and doing the adjustment all with interrupts disabled.

No CVSS v4.0

Attack Vector Local

Attack Complexity Low

Privileges Required High

Scope Unchanged

Confidentiality Impact None

Integrity Impact None

Availability Impact High

User Interaction None

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

Exploitation none

Automatable no

Technical Impact partial

No data.

No data.

No data.

References

Link	Providers
https://git.kernel.org/stable/c/0c7478a2da3f5fe106b4658338873d50c86ac7ab
https://git.kernel.org/stable/c/4f7dad73df4cdb2b7042103d3922745d040ad025
https://git.kernel.org/stable/c/abe4eaa8618bb36c2b33e9cdde0499296a23448c
https://git.kernel.org/stable/c/b427f55e9d4185f6f17cc1e3296eb8d0c4425283
https://git.kernel.org/stable/c/de3e9d8e8d1ae0a4d301109d1ec140796901306c
https://lore.kernel.org/linux-cve-announce/2024040218-CVE-2023-52633-d020@gregkh/T
https://nvd.nist.gov/vuln/detail/CVE-2023-52633
https://www.cve.org/CVERecord?id=CVE-2023-52633

History

Wed, 11 Sep 2024 13:30:00 +0000

Type	Values Removed	Values Added
Metrics		ssvc `{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}`

MITRE

Status: PUBLISHED

Assigner: Linux

Published: 2024-04-02T06:49:11.596Z

Updated: 2024-11-04T14:50:07.336Z

Reserved: 2024-03-06T09:52:12.092Z

Link: CVE-2023-52633

Vulnrichment

Updated: 2024-08-02T23:03:21.364Z

NVD

Status : Awaiting Analysis

Published: 2024-04-02T07:15:41.097

Modified: 2024-04-02T12:50:42.233

Link: CVE-2023-52633

Redhat

Severity : Low

Publid Date: 2024-04-02T00:00:00Z

Links: CVE-2023-52633 - Bugzilla

{"dataType": "CVE_RECORD", "dataVersion": "5.1", "cveMetadata": {"cveId": "CVE-2023-52633", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2024-03-06T09:52:12.092Z", "datePublished": "2024-04-02T06:49:11.596Z", "dateUpdated": "2024-11-04T14:50:07.336Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2024-11-04T14:50:07.336Z"}, "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\num: time-travel: fix time corruption\n\nIn 'basic' time-travel mode (without =inf-cpu or =ext), we\nstill get timer interrupts. These can happen at arbitrary\npoints in time, i.e. while in timer_read(), which pushes\ntime forward just a little bit. Then, if we happen to get\nthe interrupt after calculating the new time to push to,\nbut before actually finishing that, the interrupt will set\nthe time to a value that's incompatible with the forward,\nand we'll crash because time goes backwards when we do the\nforwarding.\n\nFix this by reading the time_travel_time, calculating the\nadjustment, and doing the adjustment all with interrupts\ndisabled."}], "affected": [{"product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["arch/um/kernel/time.c"], "versions": [{"version": "1da177e4c3f4", "lessThan": "0c7478a2da3f", "status": "affected", "versionType": "git"}, {"version": "1da177e4c3f4", "lessThan": "4f7dad73df4c", "status": "affected", "versionType": "git"}, {"version": "1da177e4c3f4", "lessThan": "de3e9d8e8d1a", "status": "affected", "versionType": "git"}, {"version": "1da177e4c3f4", "lessThan": "b427f55e9d41", "status": "affected", "versionType": "git"}, {"version": "1da177e4c3f4", "lessThan": "abe4eaa8618b", "status": "affected", "versionType": "git"}]}, {"product": "Linux", "vendor": "Linux", "defaultStatus": "affected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["arch/um/kernel/time.c"], "versions": [{"version": "5.15.149", "lessThanOrEqual": "5.15.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.1.77", "lessThanOrEqual": "6.1.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.6.16", "lessThanOrEqual": "6.6.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.7.4", "lessThanOrEqual": "6.7.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.8", "lessThanOrEqual": "*", "status": "unaffected", "versionType": "original_commit_for_fix"}]}], "references": [{"url": "https://git.kernel.org/stable/c/0c7478a2da3f5fe106b4658338873d50c86ac7ab"}, {"url": "https://git.kernel.org/stable/c/4f7dad73df4cdb2b7042103d3922745d040ad025"}, {"url": "https://git.kernel.org/stable/c/de3e9d8e8d1ae0a4d301109d1ec140796901306c"}, {"url": "https://git.kernel.org/stable/c/b427f55e9d4185f6f17cc1e3296eb8d0c4425283"}, {"url": "https://git.kernel.org/stable/c/abe4eaa8618bb36c2b33e9cdde0499296a23448c"}], "title": "um: time-travel: fix time corruption", "x_generator": {"engine": "bippy-9e1c9544281a"}}, "adp": [{"providerMetadata": {"orgId": "af854a3a-2127-422b-91ae-364da2661108", "shortName": "CVE", "dateUpdated": "2024-08-02T23:03:21.364Z"}, "title": "CVE Program Container", "references": [{"url": "https://git.kernel.org/stable/c/0c7478a2da3f5fe106b4658338873d50c86ac7ab", "tags": ["x_transferred"]}, {"url": "https://git.kernel.org/stable/c/4f7dad73df4cdb2b7042103d3922745d040ad025", "tags": ["x_transferred"]}, {"url": "https://git.kernel.org/stable/c/de3e9d8e8d1ae0a4d301109d1ec140796901306c", "tags": ["x_transferred"]}, {"url": "https://git.kernel.org/stable/c/b427f55e9d4185f6f17cc1e3296eb8d0c4425283", "tags": ["x_transferred"]}, {"url": "https://git.kernel.org/stable/c/abe4eaa8618bb36c2b33e9cdde0499296a23448c", "tags": ["x_transferred"]}]}, {"metrics": [{"other": {"type": "ssvc", "content": {"id": "CVE-2023-52633", "role": "CISA Coordinator", "options": [{"Exploitation": "none"}, {"Automatable": "no"}, {"Technical Impact": "partial"}], "version": "2.0.3", "timestamp": "2024-09-10T15:53:36.022908Z"}}}], "title": "CISA ADP Vulnrichment", "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2024-09-11T17:33:38.365Z"}}]}}

{"dataType": "CVE_RECORD", "containers": {"adp": [{"title": "CVE Program Container", "references": [{"url": "https://git.kernel.org/stable/c/0c7478a2da3f5fe106b4658338873d50c86ac7ab", "tags": ["x_transferred"]}, {"url": "https://git.kernel.org/stable/c/4f7dad73df4cdb2b7042103d3922745d040ad025", "tags": ["x_transferred"]}, {"url": "https://git.kernel.org/stable/c/de3e9d8e8d1ae0a4d301109d1ec140796901306c", "tags": ["x_transferred"]}, {"url": "https://git.kernel.org/stable/c/b427f55e9d4185f6f17cc1e3296eb8d0c4425283", "tags": ["x_transferred"]}, {"url": "https://git.kernel.org/stable/c/abe4eaa8618bb36c2b33e9cdde0499296a23448c", "tags": ["x_transferred"]}], "providerMetadata": {"orgId": "af854a3a-2127-422b-91ae-364da2661108", "shortName": "CVE", "dateUpdated": "2024-08-02T23:03:21.364Z"}}, {"title": "CISA ADP Vulnrichment", "metrics": [{"other": {"type": "ssvc", "content": {"id": "CVE-2023-52633", "role": "CISA Coordinator", "options": [{"Exploitation": "none"}, {"Automatable": "no"}, {"Technical Impact": "partial"}], "version": "2.0.3", "timestamp": "2024-09-10T15:53:36.022908Z"}}}], "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2024-09-11T12:42:17.799Z"}}], "cna": {"title": "um: time-travel: fix time corruption", "affected": [{"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "product": "Linux", "versions": [{"status": "affected", "version": "1da177e4c3f4", "lessThan": "0c7478a2da3f", "versionType": "git"}, {"status": "affected", "version": "1da177e4c3f4", "lessThan": "4f7dad73df4c", "versionType": "git"}, {"status": "affected", "version": "1da177e4c3f4", "lessThan": "de3e9d8e8d1a", "versionType": "git"}, {"status": "affected", "version": "1da177e4c3f4", "lessThan": "b427f55e9d41", "versionType": "git"}, {"status": "affected", "version": "1da177e4c3f4", "lessThan": "abe4eaa8618b", "versionType": "git"}], "programFiles": ["arch/um/kernel/time.c"], "defaultStatus": "unaffected"}, {"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "product": "Linux", "versions": [{"status": "unaffected", "version": "5.15.149", "versionType": "semver", "lessThanOrEqual": "5.15.*"}, {"status": "unaffected", "version": "6.1.77", "versionType": "semver", "lessThanOrEqual": "6.1.*"}, {"status": "unaffected", "version": "6.6.16", "versionType": "semver", "lessThanOrEqual": "6.6.*"}, {"status": "unaffected", "version": "6.7.4", "versionType": "semver", "lessThanOrEqual": "6.7.*"}, {"status": "unaffected", "version": "6.8", "versionType": "original_commit_for_fix", "lessThanOrEqual": "*"}], "programFiles": ["arch/um/kernel/time.c"], "defaultStatus": "affected"}], "references": [{"url": "https://git.kernel.org/stable/c/0c7478a2da3f5fe106b4658338873d50c86ac7ab"}, {"url": "https://git.kernel.org/stable/c/4f7dad73df4cdb2b7042103d3922745d040ad025"}, {"url": "https://git.kernel.org/stable/c/de3e9d8e8d1ae0a4d301109d1ec140796901306c"}, {"url": "https://git.kernel.org/stable/c/b427f55e9d4185f6f17cc1e3296eb8d0c4425283"}, {"url": "https://git.kernel.org/stable/c/abe4eaa8618bb36c2b33e9cdde0499296a23448c"}], "x_generator": {"engine": "bippy-9e1c9544281a"}, "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\num: time-travel: fix time corruption\n\nIn 'basic' time-travel mode (without =inf-cpu or =ext), we\nstill get timer interrupts. These can happen at arbitrary\npoints in time, i.e. while in timer_read(), which pushes\ntime forward just a little bit. Then, if we happen to get\nthe interrupt after calculating the new time to push to,\nbut before actually finishing that, the interrupt will set\nthe time to a value that's incompatible with the forward,\nand we'll crash because time goes backwards when we do the\nforwarding.\n\nFix this by reading the time_travel_time, calculating the\nadjustment, and doing the adjustment all with interrupts\ndisabled."}], "providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2024-11-04T14:50:07.336Z"}}}, "cveMetadata": {"cveId": "CVE-2023-52633", "state": "PUBLISHED", "dateUpdated": "2024-11-04T14:50:07.336Z", "dateReserved": "2024-03-06T09:52:12.092Z", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "datePublished": "2024-04-02T06:49:11.596Z", "assignerShortName": "Linux"}, "dataVersion": "5.1"}

{"cveTags": [], "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\num: time-travel: fix time corruption\n\nIn 'basic' time-travel mode (without =inf-cpu or =ext), we\nstill get timer interrupts. These can happen at arbitrary\npoints in time, i.e. while in timer_read(), which pushes\ntime forward just a little bit. Then, if we happen to get\nthe interrupt after calculating the new time to push to,\nbut before actually finishing that, the interrupt will set\nthe time to a value that's incompatible with the forward,\nand we'll crash because time goes backwards when we do the\nforwarding.\n\nFix this by reading the time_travel_time, calculating the\nadjustment, and doing the adjustment all with interrupts\ndisabled."}, {"lang": "es", "value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: um: viaje en el tiempo: corrige la corrupci\u00f3n del tiempo En el modo de viaje en el tiempo 'b\u00e1sico' (sin =inf-cpu o =ext), todav\u00eda obtenemos interrupciones del temporizador. Esto puede suceder en momentos arbitrarios en el tiempo, es decir, mientras est\u00e1 en timer_read(), lo que adelanta un poco el tiempo. Luego, si recibimos la interrupci\u00f3n despu\u00e9s de calcular el nuevo tiempo al que enviar, pero antes de finalizarlo, la interrupci\u00f3n establecer\u00e1 el tiempo en un valor que es incompatible con el avance, y fallaremos porque el tiempo retrocede cuando hacer el reenv\u00edo. Solucione este problema leyendo time_travel_time, calculando el ajuste y realizando el ajuste, todo con las interrupciones desactivadas."}], "id": "CVE-2023-52633", "lastModified": "2024-04-02T12:50:42.233", "metrics": {}, "published": "2024-04-02T07:15:41.097", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/0c7478a2da3f5fe106b4658338873d50c86ac7ab"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/4f7dad73df4cdb2b7042103d3922745d040ad025"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/abe4eaa8618bb36c2b33e9cdde0499296a23448c"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/b427f55e9d4185f6f17cc1e3296eb8d0c4425283"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/de3e9d8e8d1ae0a4d301109d1ec140796901306c"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Awaiting Analysis"}

{"bugzilla": {"description": "kernel: um: time-travel: fix time corruption", "id": "2272802", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2272802"}, "csaw": false, "cvss3": {"cvss3_base_score": "4.4", "cvss3_scoring_vector": "CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H", "status": "draft"}, "cwe": "CWE-20", "details": ["In the Linux kernel, the following vulnerability has been resolved:\num: time-travel: fix time corruption\nIn 'basic' time-travel mode (without =inf-cpu or =ext), we\nstill get timer interrupts. These can happen at arbitrary\npoints in time, i.e. while in timer_read(), which pushes\ntime forward just a little bit. Then, if we happen to get\nthe interrupt after calculating the new time to push to,\nbut before actually finishing that, the interrupt will set\nthe time to a value that's incompatible with the forward,\nand we'll crash because time goes backwards when we do the\nforwarding.\nFix this by reading the time_travel_time, calculating the\nadjustment, and doing the adjustment all with interrupts\ndisabled."], "name": "CVE-2023-52633", "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": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 9"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Not affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 9"}], "public_date": "2024-04-02T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2023-52633\nhttps://nvd.nist.gov/vuln/detail/CVE-2023-52633\nhttps://lore.kernel.org/linux-cve-announce/2024040218-CVE-2023-52633-d020@gregkh/T"], "threat_severity": "Low", "upstream_fix": "kernel 5.15.149, kernel 6.1.77, kernel 6.6.16, kernel 6.7.4, kernel 6.8"}