cve-2024-53057
Vulnerability from cvelistv5
Published
2024-11-19 17:19
Modified
2025-05-04 09:51
Severity ?
7.8 (High) - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Summary
In the Linux kernel, the following vulnerability has been resolved: net/sched: stop qdisc_tree_reduce_backlog on TC_H_ROOT In qdisc_tree_reduce_backlog, Qdiscs with major handle ffff: are assumed to be either root or ingress. This assumption is bogus since it's valid to create egress qdiscs with major handle ffff: Budimir Markovic found that for qdiscs like DRR that maintain an active class list, it will cause a UAF with a dangling class pointer. In 066a3b5b2346, the concern was to avoid iterating over the ingress qdisc since its parent is itself. The proper fix is to stop when parent TC_H_ROOT is reached because the only way to retrieve ingress is when a hierarchy which does not contain a ffff: major handle call into qdisc_lookup with TC_H_MAJ(TC_H_ROOT). In the scenario where major ffff: is an egress qdisc in any of the tree levels, the updates will also propagate to TC_H_ROOT, which then the iteration must stop. net/sched/sch_api.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
References
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/05df1b1dff8f197f1c275b57ccb2ca33021df552Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/2e95c4384438adeaa772caa560244b1a2efef816Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/580b3189c1972aff0f993837567d36392e9d981bPatch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/597cf9748c3477bf61bc35f0634129f56764ad24Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/9995909615c3431a5304c1210face5f268d24dbaPatch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/ce691c814bc7a3c30c220ffb5b7422715458fd9bPatch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/dbe778b08b5101df9e89bc06e0a3a7ecd2f4ef20Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/e7f9a6f97eb067599a74f3bcb6761976b0ed303ePatch
Impacted products
Vendor Product Version
Linux Linux Version: 066a3b5b2346febf9a655b444567b7138e3bb939
Version: 066a3b5b2346febf9a655b444567b7138e3bb939
Version: 066a3b5b2346febf9a655b444567b7138e3bb939
Version: 066a3b5b2346febf9a655b444567b7138e3bb939
Version: 066a3b5b2346febf9a655b444567b7138e3bb939
Version: 066a3b5b2346febf9a655b444567b7138e3bb939
Version: 066a3b5b2346febf9a655b444567b7138e3bb939
Version: 066a3b5b2346febf9a655b444567b7138e3bb939
 Create a notification for this product.
   Linux Linux Version: 2.6.25
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      dateReserved: "2024-11-19T17:17:24.974Z",
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The proper fix is to stop when parent\\nTC_H_ROOT is reached because the only way to retrieve ingress is when a\\nhierarchy which does not contain a ffff: major handle call into\\nqdisc_lookup with TC_H_MAJ(TC_H_ROOT).\\n\\nIn the scenario where major ffff: is an egress qdisc in any of the tree\\nlevels, the updates will also propagate to TC_H_ROOT, which then the\\niteration must stop.\\n\\n\\n net/sched/sch_api.c | 2 +-\\n 1 file changed, 1 insertion(+), 1 deletion(-)\"},{\"lang\":\"es\",\"value\":\"En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: net/sched: stop qdisc_tree_reduce_backlog en TC_H_ROOT En qdisc_tree_reduce_backlog, se supone que las Qdisc con el identificador principal ffff: son raíz o de entrada. Esta suposición es falsa ya que es válido crear qdiscs de salida con el identificador principal ffff: Budimir Markovic descubrió que para las qdisc como DRR que mantienen una lista de clases activa, provocará un UAF con un puntero de clase colgante. En 066a3b5b2346, la preocupación era evitar iterar sobre la qdisc de entrada ya que su padre es ella misma. La solución adecuada es detener cuando se alcanza el padre TC_H_ROOT porque la única forma de recuperar la entrada es cuando una jerarquía que no contiene un identificador principal ffff: llama a qdisc_lookup con TC_H_MAJ(TC_H_ROOT). En el escenario donde el ffff principal es una qdisc de salida en cualquiera de los niveles del árbol, las actualizaciones también se propagarán a TC_H_ROOT, donde luego la iteración debe detenerse. net/sched/sch_api.c | 2 +- 1 archivo modificado, 1 inserción(+), 1 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      vulnrichment: {
         containers: "{\"adp\": [{\"title\": \"CISA ADP Vulnrichment\", \"metrics\": [{\"cvssV3_1\": {\"scope\": \"UNCHANGED\", \"version\": \"3.1\", \"baseScore\": 7.8, \"attackVector\": \"LOCAL\", \"baseSeverity\": \"HIGH\", \"vectorString\": \"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H\", \"integrityImpact\": \"HIGH\", \"userInteraction\": \"NONE\", \"attackComplexity\": \"LOW\", \"availabilityImpact\": \"HIGH\", \"privilegesRequired\": \"LOW\", \"confidentialityImpact\": \"HIGH\"}}, {\"other\": {\"type\": \"ssvc\", \"content\": {\"id\": \"CVE-2024-53057\", \"role\": \"CISA Coordinator\", \"options\": [{\"Exploitation\": \"none\"}, {\"Automatable\": \"no\"}, {\"Technical Impact\": \"total\"}], \"version\": \"2.0.3\", \"timestamp\": \"2024-12-11T14:25:23.594430Z\"}}}], \"problemTypes\": [{\"descriptions\": [{\"lang\": \"en\", \"type\": \"CWE\", \"cweId\": \"CWE-416\", \"description\": \"CWE-416 Use After Free\"}]}], \"providerMetadata\": {\"orgId\": 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\"unaffected\", \"version\": \"6.12\", \"versionType\": \"original_commit_for_fix\", \"lessThanOrEqual\": \"*\"}], \"programFiles\": [\"net/sched/sch_api.c\"], \"defaultStatus\": \"affected\"}], \"references\": [{\"url\": \"https://git.kernel.org/stable/c/e7f9a6f97eb067599a74f3bcb6761976b0ed303e\"}, {\"url\": \"https://git.kernel.org/stable/c/dbe778b08b5101df9e89bc06e0a3a7ecd2f4ef20\"}, {\"url\": \"https://git.kernel.org/stable/c/ce691c814bc7a3c30c220ffb5b7422715458fd9b\"}, {\"url\": \"https://git.kernel.org/stable/c/05df1b1dff8f197f1c275b57ccb2ca33021df552\"}, {\"url\": \"https://git.kernel.org/stable/c/580b3189c1972aff0f993837567d36392e9d981b\"}, {\"url\": \"https://git.kernel.org/stable/c/597cf9748c3477bf61bc35f0634129f56764ad24\"}, {\"url\": \"https://git.kernel.org/stable/c/9995909615c3431a5304c1210face5f268d24dba\"}, {\"url\": \"https://git.kernel.org/stable/c/2e95c4384438adeaa772caa560244b1a2efef816\"}], \"x_generator\": {\"engine\": \"bippy-1.2.0\"}, \"descriptions\": 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This assumption is bogus since it's valid\\nto create egress qdiscs with major handle ffff:\\nBudimir Markovic found that for qdiscs like DRR that maintain an active\\nclass list, it will cause a UAF with a dangling class pointer.\\n\\nIn 066a3b5b2346, the concern was to avoid iterating over the ingress\\nqdisc since its parent is itself. The proper fix is to stop when parent\\nTC_H_ROOT is reached because the only way to retrieve ingress is when a\\nhierarchy which does not contain a ffff: major handle call into\\nqdisc_lookup with TC_H_MAJ(TC_H_ROOT).\\n\\nIn the scenario where major ffff: is an egress qdisc in any of the tree\\nlevels, the updates will also propagate to TC_H_ROOT, which then the\\niteration must stop.\\n\\n\\n net/sched/sch_api.c | 2 +-\\n 1 file changed, 1 insertion(+), 1 deletion(-)\"}], \"cpeApplicability\": [{\"nodes\": [{\"negate\": false, \"cpeMatch\": [{\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"4.19.323\", \"versionStartIncluding\": \"2.6.25\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"5.4.285\", \"versionStartIncluding\": \"2.6.25\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"5.10.229\", \"versionStartIncluding\": \"2.6.25\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"5.15.171\", \"versionStartIncluding\": \"2.6.25\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"6.1.116\", \"versionStartIncluding\": \"2.6.25\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"6.6.60\", \"versionStartIncluding\": \"2.6.25\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"6.11.7\", \"versionStartIncluding\": \"2.6.25\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"6.12\", \"versionStartIncluding\": \"2.6.25\"}], \"operator\": \"OR\"}]}], \"providerMetadata\": {\"orgId\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\", \"shortName\": \"Linux\", \"dateUpdated\": \"2025-05-04T09:51:52.422Z\"}}}",
         cveMetadata: "{\"cveId\": \"CVE-2024-53057\", \"state\": \"PUBLISHED\", \"dateUpdated\": \"2025-05-04T09:51:52.422Z\", \"dateReserved\": \"2024-11-19T17:17:24.974Z\", \"assignerOrgId\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\", \"datePublished\": \"2024-11-19T17:19:40.284Z\", \"assignerShortName\": \"Linux\"}",
         dataType: "CVE_RECORD",
         dataVersion: "5.1",
      },
   },
}


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