200 lines
10 KiB
JSON
200 lines
10 KiB
JSON
{
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"dataType": "CVE_RECORD",
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"dataVersion": "5.2",
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"cveMetadata": {
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"cveId": "CVE-2024-53107",
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"assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
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"state": "PUBLISHED",
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"assignerShortName": "Linux",
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"dateReserved": "2024-11-19T17:17:24.992Z",
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"datePublished": "2024-12-02T13:44:39.811Z",
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"dateUpdated": "2026-08-05T11:43:45.543Z"
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},
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"containers": {
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"cna": {
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"providerMetadata": {
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"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
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"shortName": "Linux",
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"dateUpdated": "2026-08-05T11:43:45.543Z"
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},
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"descriptions": [
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{
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"lang": "en",
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"value": "In the Linux kernel, the following vulnerability has been resolved:\n\nfs/proc/task_mmu: prevent integer overflow in pagemap_scan_get_args()\n\nThe \"arg->vec_len\" variable is a u64 that comes from the user at the start\nof the function. The \"arg->vec_len * sizeof(struct page_region))\"\nmultiplication can lead to integer wrapping. Use size_mul() to avoid\nthat.\n\nAlso the size_add/mul() functions work on unsigned long so for 32bit\nsystems we need to ensure that \"arg->vec_len\" fits in an unsigned long."
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}
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],
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"metrics": [
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{
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"cvssV3_1": {
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"version": "3.1",
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"vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
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"baseScore": 7.8,
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"baseSeverity": "HIGH"
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},
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"scenarios": [
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{
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"lang": "en",
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"value": "AV:L - The vulnerability is reached only through the PAGEMAP_SCAN ioctl on /proc/<pid>/pagemap, which requires a local process on the system. There is no network-facing consumer of this interface.\nAC:L - Triggering is fully deterministic — the attacker simply passes a crafted vec_len (e.g. 2^61, or 0x1_0000_0001) in the pm_scan_arg struct; no race, timing window, or uncontrollable memory state is involved, and the attacker shapes both the slab allocation size and the overflow contents via its own VMA layout.\nPR:L - Any unprivileged local user can open /proc/self/pagemap, since proc_mem_open(PTRACE_MODE_READ) always permits self-access and no capability is checked on the PAGEMAP_SCAN path. CONFIG_PROC_PAGE_MONITOR is enabled by default.\nUI:N - The attacking process performs the entire sequence itself — open its own pagemap file and issue one ioctl. No victim action or cooperation is needed.\nS:U - The corruption stays within the kernel of the affected system and the calling process's own address space; no VM, IOMMU, or other security-authority boundary is crossed.\nC:H - The defeated access_ok range check plus the resulting unbounded slab out-of-bounds write past a 24-byte kmalloc object lets an attacker corrupt adjacent slab objects (pointers, lengths, credentials), a classic heap-overflow primitive readily leveraged for arbitrary kernel memory disclosure.\nI:H - The vec_buf_len underflow in pagemap_scan_push_range yields a repeatable out-of-bounds heap write with partially attacker-shaped 24-byte payloads, giving an arbitrary-write primitive suitable for control-flow hijack and privilege escalation.\nA:H - The same input path produces an immediate kernel oops by dereferencing ZERO_SIZE_PTR (write at address 0x10) when kmalloc_array(0, 24) is used, and the slab overflow reliably panics the kernel on any hardened/allocator-checked configuration."
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}
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]
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}
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],
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"affected": [
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{
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"product": "Linux",
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"vendor": "Linux",
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"defaultStatus": "unaffected",
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"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
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"programFiles": [
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"fs/proc/task_mmu.c"
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],
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"versions": [
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{
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"version": "52526ca7fdb905a768a93f8faa418e9b988fc34b",
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"lessThan": "adee03f8903c58a6a559f21388a430211fac8ce9",
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"status": "affected",
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"versionType": "git"
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},
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{
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"version": "52526ca7fdb905a768a93f8faa418e9b988fc34b",
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"lessThan": "669b0cb81e4e4e78cff77a5b367c7f70c0c6c05e",
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"status": "affected",
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"versionType": "git"
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}
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]
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},
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{
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"product": "Linux",
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"vendor": "Linux",
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"defaultStatus": "affected",
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"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
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"programFiles": [
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"fs/proc/task_mmu.c"
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],
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"versions": [
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{
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"version": "6.7",
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"status": "affected"
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},
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{
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"version": "0",
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"lessThan": "6.7",
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"status": "unaffected",
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"versionType": "semver"
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},
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{
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"version": "6.11.10",
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"lessThanOrEqual": "6.11.*",
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"status": "unaffected",
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"versionType": "semver"
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},
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{
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"version": "6.12",
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"lessThanOrEqual": "*",
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"status": "unaffected",
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"versionType": "original_commit_for_fix"
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}
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]
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}
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],
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"cpeApplicability": [
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{
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"nodes": [
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{
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"operator": "OR",
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"negate": false,
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"cpeMatch": [
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{
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"vulnerable": true,
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"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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"versionStartIncluding": "6.7",
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"versionEndExcluding": "6.11.10"
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},
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{
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"vulnerable": true,
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"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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"versionStartIncluding": "6.7",
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"versionEndExcluding": "6.12"
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}
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]
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}
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]
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}
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],
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"references": [
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{
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"url": "https://git.kernel.org/stable/c/adee03f8903c58a6a559f21388a430211fac8ce9"
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},
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{
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"url": "https://git.kernel.org/stable/c/669b0cb81e4e4e78cff77a5b367c7f70c0c6c05e"
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}
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],
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"title": "fs/proc/task_mmu: prevent integer overflow in pagemap_scan_get_args()",
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"x_generator": {
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"engine": "bippy-1.2.0"
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}
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},
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"adp": [
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{
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"metrics": [
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{
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"cvssV3_1": {
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"scope": "UNCHANGED",
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"version": "3.1",
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"baseScore": 5.5,
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"attackVector": "LOCAL",
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"baseSeverity": "MEDIUM",
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"vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
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"integrityImpact": "NONE",
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"userInteraction": "NONE",
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"attackComplexity": "LOW",
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"availabilityImpact": "HIGH",
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"privilegesRequired": "LOW",
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"confidentialityImpact": "NONE"
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}
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},
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{
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"other": {
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"type": "ssvc",
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"content": {
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"id": "CVE-2024-53107",
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"role": "CISA Coordinator",
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"options": [
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{
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"Exploitation": "none"
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},
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{
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"Automatable": "no"
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},
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{
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"Technical Impact": "partial"
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}
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],
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"version": "2.0.3",
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"timestamp": "2025-10-01T20:10:51.003579Z"
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}
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}
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}
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],
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"problemTypes": [
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{
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"descriptions": [
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{
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"lang": "en",
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"type": "CWE",
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"cweId": "CWE-190",
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"description": "CWE-190 Integer Overflow or Wraparound"
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}
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]
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}
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],
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"title": "CISA ADP Vulnrichment",
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"providerMetadata": {
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"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
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"shortName": "CISA-ADP",
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"dateUpdated": "2025-10-01T20:17:11.772Z"
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}
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}
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]
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}
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} |