CVE-2024-50165
Vulnerability from cvelistv5
Published
2024-11-07 09:31
Modified
2024-12-19 09:34
Severity ?
EPSS score ?
Summary
In the Linux kernel, the following vulnerability has been resolved:
bpf: Preserve param->string when parsing mount options
In bpf_parse_param(), keep the value of param->string intact so it can
be freed later. Otherwise, the kmalloc area pointed to by param->string
will be leaked as shown below:
unreferenced object 0xffff888118c46d20 (size 8):
comm "new_name", pid 12109, jiffies 4295580214
hex dump (first 8 bytes):
61 6e 79 00 38 c9 5c 7e any.8.\~
backtrace (crc e1b7f876):
[<00000000c6848ac7>] kmemleak_alloc+0x4b/0x80
[<00000000de9f7d00>] __kmalloc_node_track_caller_noprof+0x36e/0x4a0
[<000000003e29b886>] memdup_user+0x32/0xa0
[<0000000007248326>] strndup_user+0x46/0x60
[<0000000035b3dd29>] __x64_sys_fsconfig+0x368/0x3d0
[<0000000018657927>] x64_sys_call+0xff/0x9f0
[<00000000c0cabc95>] do_syscall_64+0x3b/0xc0
[<000000002f331597>] entry_SYSCALL_64_after_hwframe+0x4b/0x53
References
Impacted products
{
"containers": {
"cna": {
"affected": [
{
"defaultStatus": "unaffected",
"product": "Linux",
"programFiles": [
"kernel/bpf/inode.c"
],
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"versions": [
{
"lessThan": "5d7a0a426540319327309035509cb768a2f5c2c4",
"status": "affected",
"version": "6c1752e0b6ca8c7021d6da3926738d8d88f601a9",
"versionType": "git"
},
{
"lessThan": "1f97c03f43fadc407de5b5cb01c07755053e1c22",
"status": "affected",
"version": "6c1752e0b6ca8c7021d6da3926738d8d88f601a9",
"versionType": "git"
}
]
},
{
"defaultStatus": "affected",
"product": "Linux",
"programFiles": [
"kernel/bpf/inode.c"
],
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"versions": [
{
"status": "affected",
"version": "6.9"
},
{
"lessThan": "6.9",
"status": "unaffected",
"version": "0",
"versionType": "semver"
},
{
"lessThanOrEqual": "6.11.*",
"status": "unaffected",
"version": "6.11.6",
"versionType": "semver"
},
{
"lessThanOrEqual": "*",
"status": "unaffected",
"version": "6.12",
"versionType": "original_commit_for_fix"
}
]
}
],
"descriptions": [
{
"lang": "en",
"value": "In the Linux kernel, the following vulnerability has been resolved:\n\nbpf: Preserve param-\u003estring when parsing mount options\n\nIn bpf_parse_param(), keep the value of param-\u003estring intact so it can\nbe freed later. Otherwise, the kmalloc area pointed to by param-\u003estring\nwill be leaked as shown below:\n\nunreferenced object 0xffff888118c46d20 (size 8):\n comm \"new_name\", pid 12109, jiffies 4295580214\n hex dump (first 8 bytes):\n 61 6e 79 00 38 c9 5c 7e any.8.\\~\n backtrace (crc e1b7f876):\n [\u003c00000000c6848ac7\u003e] kmemleak_alloc+0x4b/0x80\n [\u003c00000000de9f7d00\u003e] __kmalloc_node_track_caller_noprof+0x36e/0x4a0\n [\u003c000000003e29b886\u003e] memdup_user+0x32/0xa0\n [\u003c0000000007248326\u003e] strndup_user+0x46/0x60\n [\u003c0000000035b3dd29\u003e] __x64_sys_fsconfig+0x368/0x3d0\n [\u003c0000000018657927\u003e] x64_sys_call+0xff/0x9f0\n [\u003c00000000c0cabc95\u003e] do_syscall_64+0x3b/0xc0\n [\u003c000000002f331597\u003e] entry_SYSCALL_64_after_hwframe+0x4b/0x53"
}
],
"providerMetadata": {
"dateUpdated": "2024-12-19T09:34:28.862Z",
"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"shortName": "Linux"
},
"references": [
{
"url": "https://git.kernel.org/stable/c/5d7a0a426540319327309035509cb768a2f5c2c4"
},
{
"url": "https://git.kernel.org/stable/c/1f97c03f43fadc407de5b5cb01c07755053e1c22"
}
],
"title": "bpf: Preserve param-\u003estring when parsing mount options",
"x_generator": {
"engine": "bippy-5f407fcff5a0"
}
}
},
"cveMetadata": {
"assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"assignerShortName": "Linux",
"cveId": "CVE-2024-50165",
"datePublished": "2024-11-07T09:31:41.923Z",
"dateReserved": "2024-10-21T19:36:19.962Z",
"dateUpdated": "2024-12-19T09:34:28.862Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.1",
"meta": {
"nvd": "{\"cve\":{\"id\":\"CVE-2024-50165\",\"sourceIdentifier\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"published\":\"2024-11-07T10:15:07.770\",\"lastModified\":\"2024-11-22T16:53:05.527\",\"vulnStatus\":\"Analyzed\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"In the Linux kernel, the following vulnerability has been resolved:\\n\\nbpf: Preserve param-\u003estring when parsing mount options\\n\\nIn bpf_parse_param(), keep the value of param-\u003estring intact so it can\\nbe freed later. Otherwise, the kmalloc area pointed to by param-\u003estring\\nwill be leaked as shown below:\\n\\nunreferenced object 0xffff888118c46d20 (size 8):\\n comm \\\"new_name\\\", pid 12109, jiffies 4295580214\\n hex dump (first 8 bytes):\\n 61 6e 79 00 38 c9 5c 7e any.8.\\\\~\\n backtrace (crc e1b7f876):\\n [\u003c00000000c6848ac7\u003e] kmemleak_alloc+0x4b/0x80\\n [\u003c00000000de9f7d00\u003e] __kmalloc_node_track_caller_noprof+0x36e/0x4a0\\n [\u003c000000003e29b886\u003e] memdup_user+0x32/0xa0\\n [\u003c0000000007248326\u003e] strndup_user+0x46/0x60\\n [\u003c0000000035b3dd29\u003e] __x64_sys_fsconfig+0x368/0x3d0\\n [\u003c0000000018657927\u003e] x64_sys_call+0xff/0x9f0\\n [\u003c00000000c0cabc95\u003e] do_syscall_64+0x3b/0xc0\\n [\u003c000000002f331597\u003e] entry_SYSCALL_64_after_hwframe+0x4b/0x53\"},{\"lang\":\"es\",\"value\":\"En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: bpf: preservar param-\u0026gt;string al analizar las opciones de montaje. En bpf_parse_param(), mantenga intacto el valor de param-\u0026gt;string para que pueda liberarse m\u00e1s tarde. De lo contrario, el \u00e1rea kmalloc a la que apunta param-\u0026gt;string se filtrar\u00e1 como se muestra a continuaci\u00f3n: objeto sin referencia 0xffff888118c46d20 (tama\u00f1o 8): comm \\\"new_name\\\", pid 12109, jiffies 4295580214 volcado hexadecimal (primeros 8 bytes): 61 6e 79 00 38 c9 5c 7e any.8.\\\\~ backtrace (crc e1b7f876): [\u0026lt;00000000c6848ac7\u0026gt;] kmemleak_alloc+0x4b/0x80 [\u0026lt;00000000de9f7d00\u0026gt;] __kmalloc_node_track_caller_noprof+0x36e/0x4a0 [\u0026lt;000000003e29b886\u0026gt;] memdup_user+0x32/0xa0 [\u0026lt;0000000007248326\u0026gt;] strndup_user+0x46/0x60 [\u0026lt;0000000035b3dd29\u0026gt;] __x64_sys_fsconfig+0x368/0x3d0 [\u0026lt;0000000018657927\u0026gt;] x64_sys_call+0xff/0x9f0 [\u0026lt;00000000c0cabc95\u0026gt;] do_syscall_64+0x3b/0xc0 [\u0026lt;000000002f331597\u0026gt;] entrada_SYSCALL_64_after_hwframe+0x4b/0x53\"}],\"metrics\":{\"cvssMetricV31\":[{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"cvssData\":{\"version\":\"3.1\",\"vectorString\":\"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H\",\"baseScore\":5.5,\"baseSeverity\":\"MEDIUM\",\"attackVector\":\"LOCAL\",\"attackComplexity\":\"LOW\",\"privilegesRequired\":\"LOW\",\"userInteraction\":\"NONE\",\"scope\":\"UNCHANGED\",\"confidentialityImpact\":\"NONE\",\"integrityImpact\":\"NONE\",\"availabilityImpact\":\"HIGH\"},\"exploitabilityScore\":1.8,\"impactScore\":3.6}]},\"weaknesses\":[{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"description\":[{\"lang\":\"en\",\"value\":\"CWE-401\"}]}],\"configurations\":[{\"nodes\":[{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"6.9\",\"versionEndExcluding\":\"6.11.6\",\"matchCriteriaId\":\"2132686D-AA83-479C-98CA-4B9F24436525\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:6.12:rc1:*:*:*:*:*:*\",\"matchCriteriaId\":\"7F361E1D-580F-4A2D-A509-7615F73167A1\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:6.12:rc2:*:*:*:*:*:*\",\"matchCriteriaId\":\"925478D0-3E3D-4E6F-ACD5-09F28D5DF82C\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:6.12:rc3:*:*:*:*:*:*\",\"matchCriteriaId\":\"3C95E234-D335-4B6C-96BF-E2CEBD8654ED\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:6.12:rc4:*:*:*:*:*:*\",\"matchCriteriaId\":\"E0F717D8-3014-4F84-8086-0124B2111379\"}]}]}],\"references\":[{\"url\":\"https://git.kernel.org/stable/c/1f97c03f43fadc407de5b5cb01c07755053e1c22\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/5d7a0a426540319327309035509cb768a2f5c2c4\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]}]}}"
}
}
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Sightings
| Author | Source | Type | Date |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
- Confirmed: The vulnerability is confirmed from an analyst perspective.
- Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
- Patched: This vulnerability was successfully patched by the user reporting the sighting.
- Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
- Not confirmed: The user expresses doubt about the veracity of the vulnerability.
- Not patched: This vulnerability was not successfully patched by the user reporting the sighting.