{ "dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": { "cveId": "CVE-2024-43858", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2024-08-17T09:11:59.279Z", "datePublished": "2024-08-17T09:24:27.976Z", "dateUpdated": "2026-08-05T11:36:50.250Z" }, "containers": { "cna": { "providerMetadata": { "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-08-05T11:36:50.250Z" }, "descriptions": [ { "lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\njfs: Fix array-index-out-of-bounds in diFree" } ], "metrics": [ { "cvssV3_1": { "version": "3.1", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H", "baseScore": 7.8, "baseSeverity": "HIGH" }, "scenarios": [ { "lang": "en", "value": "AV:L - The vulnerability is reached by mounting a crafted JFS image and then unlinking a file, all through local syscalls (mount/unlink) on a block or loop device. No network protocol processing is involved.\nAC:L - The out-of-bounds index is taken verbatim from the on-disk `iagp->agstart` field, so the attacker picks the exact OOB offset deterministically in the image; there is no race and no reliance on conditions outside attacker control.\nPR:L - A low-privileged local user can supply the malicious JFS image on common desktop/kiosk configurations where udisks2/polkit permits an active session user to mount removable or loop-backed media, and the subsequent unlink that triggers `diFree` requires only ordinary write access to a directory on that filesystem.\nUI:N - Once the image is attached, no victim action is needed — the attacker's own unlink drives `jfs_evict_inode` into `diFree`, and automounters attach the media without any human step.\nS:U - The corruption stays within kernel memory under the same security authority; no VM, IOMMU, or sandbox boundary is crossed.\nC:H - The unchecked index produces out-of-bounds reads of `im_agctl[agno].numfree`/`numinos` and of the `im_aglock[agno]` mutex at an attacker-chosen offset, and the resulting heap corruption is a general primitive that can be leveraged for kernel memory disclosure.\nI:H - `imap->im_agctl[agno].inofree = iagno` writes an attacker-influenced 32-bit value at an attacker-chosen offset far outside the `struct inomap` allocation, and `mutex_lock()` on `im_aglock[agno]` writes a kernel pointer OOB — a controlled slab-corruption write primitive suitable for control-flow hijacking.\nA:H - Out-of-bounds writes into adjacent slab objects and locking a bogus mutex reliably produce oopses, hangs, or panics, and an OOB-read `numinos` of zero yields an immediate divide-error in the `(numfree * 100) / numinos` computation." } ] } ], "affected": [ { "product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": [ "fs/jfs/jfs_imap.c" ], "versions": [ { "version": "1da177e4c3f41524e886b7f1b8a0c1fc7321cac2", "lessThan": "55b732c8b09b41148eaab2fa8e31b0af47671e00", "status": "affected", "versionType": "git" }, { "version": "1da177e4c3f41524e886b7f1b8a0c1fc7321cac2", "lessThan": "9b3a4345957f5372041bc4f59de322f62653e862", "status": "affected", "versionType": "git" }, { "version": "1da177e4c3f41524e886b7f1b8a0c1fc7321cac2", "lessThan": "538a27c8048f081a5ddd286f886eb986fbbc7f80", "status": "affected", "versionType": "git" }, { "version": "1da177e4c3f41524e886b7f1b8a0c1fc7321cac2", "lessThan": "63f7fdf733add82f126ea00e2e48f6eba15ac4b9", "status": "affected", "versionType": "git" }, { "version": "1da177e4c3f41524e886b7f1b8a0c1fc7321cac2", "lessThan": "8d8f9a477de0d7962342eedf2a599215b7c63d28", "status": "affected", "versionType": "git" }, { "version": "1da177e4c3f41524e886b7f1b8a0c1fc7321cac2", "lessThan": "ff14eadc278663cac69d57d3ca7fb2f394e1f8a7", "status": "affected", "versionType": "git" }, { "version": "1da177e4c3f41524e886b7f1b8a0c1fc7321cac2", "lessThan": "6aa6892a90a5a7fabffe5692ab9f06a7a46c6e42", "status": "affected", "versionType": "git" }, { "version": "1da177e4c3f41524e886b7f1b8a0c1fc7321cac2", "lessThan": "f73f969b2eb39ad8056f6c7f3a295fa2f85e313a", "status": "affected", "versionType": "git" } ] }, { "product": "Linux", "vendor": "Linux", "defaultStatus": "affected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": [ "fs/jfs/jfs_imap.c" ], "versions": [ { "version": "2.6.12", "status": "affected" }, { "version": "0", "lessThan": "2.6.12", "status": "unaffected", "versionType": "semver" }, { "version": "4.19.320", "lessThanOrEqual": "4.19.*", "status": "unaffected", "versionType": "semver" }, { "version": "5.4.282", "lessThanOrEqual": "5.4.*", "status": "unaffected", "versionType": "semver" }, { "version": "5.10.224", "lessThanOrEqual": "5.10.*", "status": "unaffected", "versionType": "semver" }, { "version": "5.15.165", "lessThanOrEqual": "5.15.*", "status": "unaffected", "versionType": "semver" }, { "version": "6.1.103", "lessThanOrEqual": "6.1.*", "status": "unaffected", "versionType": "semver" }, { "version": "6.6.44", "lessThanOrEqual": "6.6.*", "status": "unaffected", "versionType": "semver" }, { "version": "6.10.3", "lessThanOrEqual": "6.10.*", "status": "unaffected", "versionType": "semver" }, { "version": "6.11", "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": "2.6.12", "versionEndExcluding": "4.19.320" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "2.6.12", "versionEndExcluding": "5.4.282" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "2.6.12", "versionEndExcluding": "5.10.224" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "2.6.12", "versionEndExcluding": "5.15.165" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "2.6.12", "versionEndExcluding": "6.1.103" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "2.6.12", "versionEndExcluding": "6.6.44" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "2.6.12", "versionEndExcluding": "6.10.3" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "2.6.12", "versionEndExcluding": "6.11" } ] } ] } ], "references": [ { "url": "https://git.kernel.org/stable/c/55b732c8b09b41148eaab2fa8e31b0af47671e00" }, { "url": "https://git.kernel.org/stable/c/9b3a4345957f5372041bc4f59de322f62653e862" }, { "url": "https://git.kernel.org/stable/c/538a27c8048f081a5ddd286f886eb986fbbc7f80" }, { "url": "https://git.kernel.org/stable/c/63f7fdf733add82f126ea00e2e48f6eba15ac4b9" }, { "url": "https://git.kernel.org/stable/c/8d8f9a477de0d7962342eedf2a599215b7c63d28" }, { "url": "https://git.kernel.org/stable/c/ff14eadc278663cac69d57d3ca7fb2f394e1f8a7" }, { "url": "https://git.kernel.org/stable/c/6aa6892a90a5a7fabffe5692ab9f06a7a46c6e42" }, { "url": "https://git.kernel.org/stable/c/f73f969b2eb39ad8056f6c7f3a295fa2f85e313a" } ], "title": "jfs: Fix array-index-out-of-bounds in diFree", "x_generator": { "engine": "bippy-1.2.0" } }, "adp": [ { "metrics": [ { "other": { "type": "ssvc", "content": { "id": "CVE-2024-43858", "role": "CISA Coordinator", "options": [ { "Exploitation": "none" }, { "Automatable": "no" }, { "Technical Impact": "partial" } ], "version": "2.0.3", "timestamp": "2024-09-10T16:07:01.781226Z" } } } ], "title": "CISA ADP Vulnrichment", "providerMetadata": { "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2024-09-12T17:33:20.278Z" } }, { "title": "CVE Program Container", "references": [ { "url": "https://lists.debian.org/debian-lts-announce/2025/01/msg00001.html" }, { "url": "https://lists.debian.org/debian-lts-announce/2024/10/msg00003.html" } ], "providerMetadata": { "orgId": "af854a3a-2127-422b-91ae-364da2661108", "shortName": "CVE", "dateUpdated": "2025-11-03T22:05:59.215Z" } }, { "x_adpType": "supplier", "providerMetadata": { "orgId": "0b142b55-0307-4c5a-b3c9-f314f3fb7c5e", "shortName": "siemens-SADP", "dateUpdated": "2026-05-12T11:56:59.816Z" }, "affected": [ { "vendor": "Siemens", "product": "SIMATIC S7-1500 TM MFP - GNU/Linux subsystem", "versions": [ { "status": "affected", "version": "0", "lessThan": "*", "versionType": "custom" } ], "defaultStatus": "unknown" } ], "references": [ { "url": "https://cert-portal.siemens.com/productcert/html/ssa-265688.html" } ] } ] } }