CVE-2024-56598

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Added a check with appopriate return\nof error code in that case."}], "metrics": [{"cvssV3_1": {"version": "3.1", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:H", "baseScore": 7.1, "baseSeverity": "HIGH"}, "scenarios": [{"lang": "en", "value": "AV:L - The malicious data is on-disk JFS directory-btree metadata consumed locally via `mount(2)` followed by `getdents(2)` on the crafted directory; no network- or peer-supplied data reaches `dtReadFirst()`. The image is delivered as removable media, a loop-mountable file, or a container/appliance disk blob.\nAC:L - The attacker sets `stbl[0]` to any negative value directly in the on-disk image, so the out-of-bounds index and its exact -32..-4096 byte offset are fully attacker-chosen and fire deterministically on the first `readdir()` of the crafted directory. There is no race, timing window, or memory-layout condition outside the attacker's influence.\nPR:N - The attacker needs no account or privilege on the target system \u2014 they only author the crafted JFS image, and the privileged mount is performed by the victim or by automounting tooling. This matches the established scoring for crafted-filesystem-image CVEs in this subsystem.\nUI:R - JFS is `FS_REQUIRES_DEV` without `FS_USERNS_MOUNT`, so the attacker cannot mount the image themselves; a victim (root, udisks/automounter, or image-processing automation) must mount it and then list the directory, though a single `ls` is enough once mounted.\nS:U - The out-of-bounds read and any resulting fault stay inside the kernel of the same host; no hypervisor, IOMMU, or sandbox boundary is crossed.\nC:H - The attacker selects any 8-byte window across a 4 KB region preceding the dtree page \u2014 for the root case that is inside `struct jfs_inode_info` and neighbouring slab objects, exposing kernel pointers such as `ipimap` and `anon_inode_list` \u2014 so the read is far from \"strictly bounded to a few bytes.\" The leaked bytes become `bn`/`psize` and select which attacker-authored disk block is fetched and listed, giving an observable oracle that exfiltrates the disclosed kernel memory through `readdir()` output.\nI:N - `xd` is only dereferenced for reading in `dtReadFirst()`; the out-of-bounds access performs no kernel memory write and yields no corruption or control-flow primitive. The only writes it can steer (`add_missing_indices()`) land on blocks of the attacker's own crafted block device, not on victim-owned kernel or system state.\nA:H - This is the syzbot-reported UBSAN array-index-out-of-bounds; on `CONFIG_UBSAN_BOUNDS` + `CONFIG_UBSAN_TRAP` builds (Android GKI and hardened kernels) the check traps into a kernel panic, and on KASAN/`panic_on_warn` configurations the slab-out-of-bounds report is fatal. The garbage `bn`/`psize` additionally drives `jfs_error()` paths that panic under `errors=panic`, and the trigger is repeatable on every `readdir()` of the crafted directory."}]}], "affected": [{"product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["fs/jfs/jfs_dtree.c"], "versions": [{"version": "1da177e4c3f41524e886b7f1b8a0c1fc7321cac2", "lessThan": "25f1e673ef61d6bf9a6022e27936785896d74948", "status": "affected", "versionType": "git"}, {"version": "1da177e4c3f41524e886b7f1b8a0c1fc7321cac2", "lessThan": "8c97a4d5463a1c972ef576ac499ea9b05f956097", "status": "affected", "versionType": "git"}, {"version": "1da177e4c3f41524e886b7f1b8a0c1fc7321cac2", "lessThan": "823d573f5450ca6be80b36f54d1902ac7cd23fb9", "status": "affected", "versionType": "git"}, {"version": "1da177e4c3f41524e886b7f1b8a0c1fc7321cac2", "lessThan": "2eea5fda5556ef03defebf07b0a12fcd2c5210f4", "status": "affected", 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Added a check with appopriate return\nof error code in that case."}, {"lang": "es", "value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: jfs: arreglo de array-index-out-of-bounds en dtReadFirst El valor de stbl a veces puede estar fuera de los l\u00edmites debido a un sistema de archivos defectuoso. Se agreg\u00f3 una verificaci\u00f3n con el retorno apropiado del c\u00f3digo de error en ese caso."}], "id": "CVE-2024-56598", "lastModified": "2026-08-04T11:22:12.793", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "LOCAL", "availabilityImpact": "HIGH", "baseScore": 7.1, "baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "integrityImpact": "NONE", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "REQUIRED", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:H", "version": "3.1"}, "exploitabilityScore": 1.8, "impactScore": 5.2, "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "type": "Secondary"}, {"cvssData": {"attackComplexity": "LOW", "attackVector": "LOCAL", "availabilityImpact": "HIGH", "baseScore": 7.8, "baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H", "version": "3.1"}, "exploitabilityScore": 1.8, "impactScore": 5.9, "source": "nvd@nist.gov", "type": "Primary"}, {"cvssData": {"attackComplexity": "LOW", "attackVector": "LOCAL", "availabilityImpact": "HIGH", "baseScore": 7.8, "baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H", "version": "3.1"}, "exploitabilityScore": 1.8, "impactScore": 5.9, "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "type": "Secondary"}], "ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2024-56598", "options": [{"exploitation": "none"}, {"automatable": "no"}, {"technicalImpact": "total"}], "role": "CISA Coordinator", "timestamp": "2025-10-01T20:01:28.259842Z", "version": "2.0.3"}}]}, "published": "2024-12-27T15:15:19.200", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/22dcbf7661c6ffc3247978c254dc40b833a0d429"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/25f1e673ef61d6bf9a6022e27936785896d74948"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/2eea5fda5556ef03defebf07b0a12fcd2c5210f4"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/823d573f5450ca6be80b36f54d1902ac7cd23fb9"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/8c97a4d5463a1c972ef576ac499ea9b05f956097"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/ca84a2c9be482836b86d780244f0357e5a778c46"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/fd993b2180b4c373af8b99aa28d4dcda5c2a8f10"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "url": "https://lists.debian.org/debian-lts-announce/2025/03/msg00001.html"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "url": "https://lists.debian.org/debian-lts-announce/2025/03/msg00002.html"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Modified", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-129"}], "source": "nvd@nist.gov", "type": "Primary"}, {"description": [{"lang": "en", "value": "CWE-129"}], "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "type": "Secondary"}]}

{"bugzilla": {"description": "kernel: jfs: array-index-out-of-bounds fix in dtReadFirst", "id": "2334435", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2334435"}, "csaw": false, "cvss3": {"cvss3_base_score": "7.1", "cvss3_scoring_vector": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H", "status": "draft"}, "cwe": "CWE-129", "details": ["In the Linux kernel, the following vulnerability has been resolved:\njfs: array-index-out-of-bounds fix in dtReadFirst\nThe value of stbl can be sometimes out of bounds due\nto a bad filesystem. Added a check with appopriate return\nof error code in that case."], "name": "CVE-2024-56598", "package_state": [{"cpe": "cpe:/o:redhat:enterprise_linux:6", "fix_state": "Out of support scope", "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": "2024-12-27T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2024-56598\nhttps://nvd.nist.gov/vuln/detail/CVE-2024-56598\nhttps://lore.kernel.org/linux-cve-announce/2024122702-CVE-2024-56598-3955@gregkh/T"], "threat_severity": "Moderate"}

{}