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CERTFR-2024-AVI-0924
Vulnerability from certfr_avis
De multiples vulnérabilités ont été découvertes dans le noyau Linux d'Ubuntu. Elles permettent à un attaquant de provoquer une exécution de code arbitraire, un déni de service et un problème de sécurité non spécifié par l'éditeur.
Solutions
Se référer au bulletin de sécurité de l'éditeur pour l'obtention des correctifs (cf. section Documentation).
References
| Title | Publication Time | Tags | |||
|---|---|---|---|---|---|
|
|||||
{
"$ref": "https://www.cert.ssi.gouv.fr/openapi.json",
"affected_systems": [
{
"description": "Ubuntu 22.04 LTS",
"product": {
"name": "Ubuntu",
"vendor": {
"name": "Ubuntu",
"scada": false
}
}
}
],
"affected_systems_content": "",
"content": "## Solutions\n\nSe r\u00e9f\u00e9rer au bulletin de s\u00e9curit\u00e9 de l\u0027\u00e9diteur pour l\u0027obtention des correctifs (cf. section Documentation).",
"cves": [
{
"name": "CVE-2024-27397",
"url": "https://www.cve.org/CVERecord?id=CVE-2024-27397"
},
{
"name": "CVE-2024-38630",
"url": "https://www.cve.org/CVERecord?id=CVE-2024-38630"
},
{
"name": "CVE-2024-45016",
"url": "https://www.cve.org/CVERecord?id=CVE-2024-45016"
}
],
"initial_release_date": "2024-10-25T00:00:00",
"last_revision_date": "2024-10-25T00:00:00",
"links": [],
"reference": "CERTFR-2024-AVI-0924",
"revisions": [
{
"description": "Version initiale",
"revision_date": "2024-10-25T00:00:00.000000"
}
],
"risks": [
{
"description": "Ex\u00e9cution de code arbitraire"
},
{
"description": "Non sp\u00e9cifi\u00e9 par l\u0027\u00e9diteur"
},
{
"description": "D\u00e9ni de service"
}
],
"summary": "De multiples vuln\u00e9rabilit\u00e9s ont \u00e9t\u00e9 d\u00e9couvertes dans le noyau Linux d\u0027Ubuntu. Elles permettent \u00e0 un attaquant de provoquer une ex\u00e9cution de code arbitraire, un d\u00e9ni de service et un probl\u00e8me de s\u00e9curit\u00e9 non sp\u00e9cifi\u00e9 par l\u0027\u00e9diteur.",
"title": "Multiples vuln\u00e9rabilit\u00e9s dans le noyau Linux d\u0027Ubuntu",
"vendor_advisories": [
{
"published_at": "2024-10-21",
"title": "Bulletin de s\u00e9curit\u00e9 Ubuntu USN-7072-2",
"url": "https://ubuntu.com/security/notices/USN-7072-2"
}
]
}
CVE-2024-38630 (GCVE-0-2024-38630)
Vulnerability from cvelistv5
Published
2024-06-21 10:18
Modified
2025-05-04 09:15
Severity ?
VLAI Severity ?
EPSS score ?
Summary
In the Linux kernel, the following vulnerability has been resolved:
watchdog: cpu5wdt.c: Fix use-after-free bug caused by cpu5wdt_trigger
When the cpu5wdt module is removing, the origin code uses del_timer() to
de-activate the timer. If the timer handler is running, del_timer() could
not stop it and will return directly. If the port region is released by
release_region() and then the timer handler cpu5wdt_trigger() calls outb()
to write into the region that is released, the use-after-free bug will
happen.
Change del_timer() to timer_shutdown_sync() in order that the timer handler
could be finished before the port region is released.
References
Impacted products
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CVE-2024-27397 (GCVE-0-2024-27397)
Vulnerability from cvelistv5
Published
2024-05-09 16:37
Modified
2025-05-04 09:04
Severity ?
VLAI Severity ?
EPSS score ?
Summary
In the Linux kernel, the following vulnerability has been resolved:
netfilter: nf_tables: use timestamp to check for set element timeout
Add a timestamp field at the beginning of the transaction, store it
in the nftables per-netns area.
Update set backend .insert, .deactivate and sync gc path to use the
timestamp, this avoids that an element expires while control plane
transaction is still unfinished.
.lookup and .update, which are used from packet path, still use the
current time to check if the element has expired. And .get path and dump
also since this runs lockless under rcu read size lock. Then, there is
async gc which also needs to check the current time since it runs
asynchronously from a workqueue.
References
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
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CVE-2024-45016 (GCVE-0-2024-45016)
Vulnerability from cvelistv5
Published
2024-09-11 15:13
Modified
2025-05-04 12:58
Severity ?
VLAI Severity ?
EPSS score ?
Summary
In the Linux kernel, the following vulnerability has been resolved:
netem: fix return value if duplicate enqueue fails
There is a bug in netem_enqueue() introduced by
commit 5845f706388a ("net: netem: fix skb length BUG_ON in __skb_to_sgvec")
that can lead to a use-after-free.
This commit made netem_enqueue() always return NET_XMIT_SUCCESS
when a packet is duplicated, which can cause the parent qdisc's q.qlen
to be mistakenly incremented. When this happens qlen_notify() may be
skipped on the parent during destruction, leaving a dangling pointer
for some classful qdiscs like DRR.
There are two ways for the bug happen:
- If the duplicated packet is dropped by rootq->enqueue() and then
the original packet is also dropped.
- If rootq->enqueue() sends the duplicated packet to a different qdisc
and the original packet is dropped.
In both cases NET_XMIT_SUCCESS is returned even though no packets
are enqueued at the netem qdisc.
The fix is to defer the enqueue of the duplicate packet until after
the original packet has been guaranteed to return NET_XMIT_SUCCESS.
References
| URL | Tags | ||||||||||||||||||||||
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Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| Linux | Linux |
Version: 5845f706388a4cde0f6b80f9e5d33527e942b7d9 Version: 5845f706388a4cde0f6b80f9e5d33527e942b7d9 Version: 5845f706388a4cde0f6b80f9e5d33527e942b7d9 Version: 5845f706388a4cde0f6b80f9e5d33527e942b7d9 Version: 5845f706388a4cde0f6b80f9e5d33527e942b7d9 Version: 5845f706388a4cde0f6b80f9e5d33527e942b7d9 Version: 5845f706388a4cde0f6b80f9e5d33527e942b7d9 Version: a550a01b8af856f2684b0f79d552f5119eb5006c Version: 009510a90e230bb495f3fe25c7db956679263b07 Version: 4de7d30668cb8b06330992e1cd336f91700a2ce7 Version: d1dd2e15c85e890a1cc9bde5ba07ae63331e5c73 Version: 0148fe458b5705e2fea7cb88294fed7e36066ca2 |
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{
"containers": {
"adp": [
{
"metrics": [
{
"other": {
"content": {
"id": "CVE-2024-45016",
"options": [
{
"Exploitation": "none"
},
{
"Automatable": "no"
},
{
"Technical Impact": "partial"
}
],
"role": "CISA Coordinator",
"timestamp": "2024-09-29T15:49:19.675501Z",
"version": "2.0.3"
},
"type": "ssvc"
}
}
],
"providerMetadata": {
"dateUpdated": "2024-09-29T15:49:33.932Z",
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP"
},
"title": "CISA ADP Vulnrichment"
}
],
"cna": {
"affected": [
{
"defaultStatus": "unaffected",
"product": "Linux",
"programFiles": [
"net/sched/sch_netem.c"
],
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"versions": [
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"versionType": "git"
},
{
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"status": "affected",
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"versionType": "git"
},
{
"lessThan": "52d99a69f3d556c6426048c9d481b912205919d8",
"status": "affected",
"version": "5845f706388a4cde0f6b80f9e5d33527e942b7d9",
"versionType": "git"
},
{
"lessThan": "0486d31dd8198e22b63a4730244b38fffce6d469",
"status": "affected",
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"versionType": "git"
},
{
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"status": "affected",
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{
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},
{
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},
{
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},
{
"status": "affected",
"version": "4de7d30668cb8b06330992e1cd336f91700a2ce7",
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},
{
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"version": "d1dd2e15c85e890a1cc9bde5ba07ae63331e5c73",
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},
{
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}
]
},
{
"defaultStatus": "affected",
"product": "Linux",
"programFiles": [
"net/sched/sch_netem.c"
],
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"versions": [
{
"status": "affected",
"version": "5.0"
},
{
"lessThan": "5.0",
"status": "unaffected",
"version": "0",
"versionType": "semver"
},
{
"lessThanOrEqual": "5.4.*",
"status": "unaffected",
"version": "5.4.283",
"versionType": "semver"
},
{
"lessThanOrEqual": "5.10.*",
"status": "unaffected",
"version": "5.10.225",
"versionType": "semver"
},
{
"lessThanOrEqual": "5.15.*",
"status": "unaffected",
"version": "5.15.166",
"versionType": "semver"
},
{
"lessThanOrEqual": "6.1.*",
"status": "unaffected",
"version": "6.1.107",
"versionType": "semver"
},
{
"lessThanOrEqual": "6.6.*",
"status": "unaffected",
"version": "6.6.48",
"versionType": "semver"
},
{
"lessThanOrEqual": "6.10.*",
"status": "unaffected",
"version": "6.10.7",
"versionType": "semver"
},
{
"lessThanOrEqual": "*",
"status": "unaffected",
"version": "6.11",
"versionType": "original_commit_for_fix"
}
]
}
],
"cpeApplicability": [
{
"nodes": [
{
"cpeMatch": [
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionEndExcluding": "5.4.283",
"versionStartIncluding": "5.0",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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},
{
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"vulnerable": true
},
{
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"versionEndExcluding": "6.1.107",
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"vulnerable": true
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionEndExcluding": "6.6.48",
"versionStartIncluding": "5.0",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionEndExcluding": "6.10.7",
"versionStartIncluding": "5.0",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionEndExcluding": "6.11",
"versionStartIncluding": "5.0",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionStartIncluding": "3.16.66",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionStartIncluding": "4.9.163",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionStartIncluding": "4.14.106",
"vulnerable": true
},
{
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"versionStartIncluding": "4.19.28",
"vulnerable": true
},
{
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"versionStartIncluding": "4.20.15",
"vulnerable": true
}
],
"negate": false,
"operator": "OR"
}
]
}
],
"descriptions": [
{
"lang": "en",
"value": "In the Linux kernel, the following vulnerability has been resolved:\n\nnetem: fix return value if duplicate enqueue fails\n\nThere is a bug in netem_enqueue() introduced by\ncommit 5845f706388a (\"net: netem: fix skb length BUG_ON in __skb_to_sgvec\")\nthat can lead to a use-after-free.\n\nThis commit made netem_enqueue() always return NET_XMIT_SUCCESS\nwhen a packet is duplicated, which can cause the parent qdisc\u0027s q.qlen\nto be mistakenly incremented. When this happens qlen_notify() may be\nskipped on the parent during destruction, leaving a dangling pointer\nfor some classful qdiscs like DRR.\n\nThere are two ways for the bug happen:\n\n- If the duplicated packet is dropped by rootq-\u003eenqueue() and then\n the original packet is also dropped.\n- If rootq-\u003eenqueue() sends the duplicated packet to a different qdisc\n and the original packet is dropped.\n\nIn both cases NET_XMIT_SUCCESS is returned even though no packets\nare enqueued at the netem qdisc.\n\nThe fix is to defer the enqueue of the duplicate packet until after\nthe original packet has been guaranteed to return NET_XMIT_SUCCESS."
}
],
"providerMetadata": {
"dateUpdated": "2025-05-04T12:58:33.332Z",
"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"shortName": "Linux"
},
"references": [
{
"url": "https://git.kernel.org/stable/c/759e3e8c4a6a6b4e52ebc4547123a457f0ce90d4"
},
{
"url": "https://git.kernel.org/stable/c/c414000da1c2ea1ba9a5e5bb1a4ba774e51e202d"
},
{
"url": "https://git.kernel.org/stable/c/52d99a69f3d556c6426048c9d481b912205919d8"
},
{
"url": "https://git.kernel.org/stable/c/0486d31dd8198e22b63a4730244b38fffce6d469"
},
{
"url": "https://git.kernel.org/stable/c/577d6c0619467fe90f7e8e57e45cb5bd9d936014"
},
{
"url": "https://git.kernel.org/stable/c/e5bb2988a310667abed66c7d3ffa28880cf0f883"
},
{
"url": "https://git.kernel.org/stable/c/c07ff8592d57ed258afee5a5e04991a48dbaf382"
}
],
"title": "netem: fix return value if duplicate enqueue fails",
"x_generator": {
"engine": "bippy-1.2.0"
}
}
},
"cveMetadata": {
"assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"assignerShortName": "Linux",
"cveId": "CVE-2024-45016",
"datePublished": "2024-09-11T15:13:52.053Z",
"dateReserved": "2024-08-21T05:34:56.682Z",
"dateUpdated": "2025-05-04T12:58:33.332Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.1"
}
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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.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- 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.
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