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CERTFR-2023-AVI-0817
Vulnerability from certfr_avis - Published: 2023-10-09 - Updated: 2023-10-09
De multiples vulnérabilités ont été découvertes dans le noyau Linux d'Ubuntu. Certaines d'entre elles permettent à un attaquant de provoquer une exécution de code arbitraire à distance, un contournement de la politique de sécurité et une atteinte à la confidentialité des données.
Solution
Se référer au bulletin de sécurité de l'éditeur pour l'obtention des correctifs (cf. section Documentation).
NoneReferences
| Title | Publication Time | Tags | |||
|---|---|---|---|---|---|
|
|||||
{
"$ref": "https://www.cert.ssi.gouv.fr/openapi.json",
"affected_systems": [
{
"description": "Ubuntu 20.04 LTS",
"product": {
"name": "Ubuntu",
"vendor": {
"name": "Ubuntu",
"scada": false
}
}
}
],
"affected_systems_content": null,
"content": "## Solution\n\nSe r\u00e9f\u00e9rer au bulletin de s\u00e9curit\u00e9 de l\u0027\u00e9diteur pour l\u0027obtention des\ncorrectifs (cf. section Documentation).\n",
"cves": [
{
"name": "CVE-2023-44466",
"url": "https://www.cve.org/CVERecord?id=CVE-2023-44466"
},
{
"name": "CVE-2023-20569",
"url": "https://www.cve.org/CVERecord?id=CVE-2023-20569"
},
{
"name": "CVE-2023-3866",
"url": "https://www.cve.org/CVERecord?id=CVE-2023-3866"
},
{
"name": "CVE-2023-3338",
"url": "https://www.cve.org/CVERecord?id=CVE-2023-3338"
},
{
"name": "CVE-2023-4155",
"url": "https://www.cve.org/CVERecord?id=CVE-2023-4155"
},
{
"name": "CVE-2023-4194",
"url": "https://www.cve.org/CVERecord?id=CVE-2023-4194"
},
{
"name": "CVE-2023-38432",
"url": "https://www.cve.org/CVERecord?id=CVE-2023-38432"
},
{
"name": "CVE-2023-3863",
"url": "https://www.cve.org/CVERecord?id=CVE-2023-3863"
},
{
"name": "CVE-2023-3865",
"url": "https://www.cve.org/CVERecord?id=CVE-2023-3865"
},
{
"name": "CVE-2023-4273",
"url": "https://www.cve.org/CVERecord?id=CVE-2023-4273"
},
{
"name": "CVE-2023-4132",
"url": "https://www.cve.org/CVERecord?id=CVE-2023-4132"
},
{
"name": "CVE-2023-1206",
"url": "https://www.cve.org/CVERecord?id=CVE-2023-1206"
},
{
"name": "CVE-2023-2156",
"url": "https://www.cve.org/CVERecord?id=CVE-2023-2156"
}
],
"initial_release_date": "2023-10-09T00:00:00",
"last_revision_date": "2023-10-09T00:00:00",
"links": [],
"reference": "CERTFR-2023-AVI-0817",
"revisions": [
{
"description": "Version initiale",
"revision_date": "2023-10-09T00:00:00.000000"
}
],
"risks": [
{
"description": "D\u00e9ni de service \u00e0 distance"
},
{
"description": "Ex\u00e9cution de code arbitraire \u00e0 distance"
},
{
"description": "Atteinte \u00e0 la confidentialit\u00e9 des donn\u00e9es"
}
],
"summary": "De multiples vuln\u00e9rabilit\u00e9s ont \u00e9t\u00e9 d\u00e9couvertes dans \u003cspan\nclass=\"textit\"\u003ele noyau Linux d\u0027Ubuntu\u003c/span\u003e. Certaines d\u0027entre elles\npermettent \u00e0 un attaquant de provoquer une ex\u00e9cution de code arbitraire\n\u00e0 distance, un contournement de la politique de s\u00e9curit\u00e9 et une atteinte\n\u00e0 la confidentialit\u00e9 des donn\u00e9es.\n",
"title": "Multiples vuln\u00e9rabilit\u00e9s dans le noyau Linux d\u0027Ubuntu",
"vendor_advisories": [
{
"published_at": null,
"title": "Bulletin de s\u00e9curit\u00e9 Ubuntu USN-6416-2 du 06 octobre 2023",
"url": "https://ubuntu.com/security/notices/USN-6416-2"
}
]
}
CVE-2023-4194 (GCVE-0-2023-4194)
Vulnerability from cvelistv5 – Published: 2023-08-07 13:19 – Updated: 2026-03-24 11:22
VLAI
EPSS
Title
Kernel: tap: tap_open(): correctly initialize socket uid next fix of i_uid to current_fsuid
Summary
A flaw was found in the Linux kernel's TUN/TAP functionality. This issue could allow a local user to bypass network filters and gain unauthorized access to some resources. The original patches fixing CVE-2023-1076 are incorrect or incomplete. The problem is that the following upstream commits - a096ccca6e50 ("tun: tun_chr_open(): correctly initialize socket uid"), - 66b2c338adce ("tap: tap_open(): correctly initialize socket uid"), pass "inode->i_uid" to sock_init_data_uid() as the last parameter and that turns out to not be accurate.
Severity
5.5 (Medium)
CWE
- CWE-843 - Access of Resource Using Incompatible Type ('Type Confusion')
Assigner
References
12 references
| URL | Tags |
|---|---|
| https://access.redhat.com/errata/RHSA-2023:6583 | vendor-advisoryx_refsource_REDHAT |
| https://access.redhat.com/security/cve/CVE-2023-4194 | vdb-entryx_refsource_REDHAT |
| https://bugzilla.redhat.com/show_bug.cgi?id=2229498 | issue-trackingx_refsource_REDHAT |
| https://lore.kernel.org/all/20230731164237.48365-… | |
| https://lore.kernel.org/all/20230731164237.48365-… | |
| https://lore.kernel.org/all/20230731164237.48365-… | |
| https://lists.debian.org/debian-lts-announce/2023… | x_transferred |
| https://lists.fedoraproject.org/archives/list/pac… | x_transferred |
| https://lists.fedoraproject.org/archives/list/pac… | x_transferred |
| https://security.netapp.com/advisory/ntap-2023102… | x_transferred |
| https://www.debian.org/security/2023/dsa-5480 | x_transferred |
| https://www.debian.org/security/2023/dsa-5492 | x_transferred |
Impacted products
6 products
| Vendor | Product | Version | |
|---|---|---|---|
| Red Hat | Red Hat Enterprise Linux 9 |
Unaffected:
0:5.14.0-362.8.1.el9_3 , < *
(rpm)
cpe:/a:redhat:enterprise_linux:9::crb cpe:/a:redhat:enterprise_linux:9::realtime cpe:/a:redhat:enterprise_linux:9::nfv cpe:/o:redhat:enterprise_linux:9::baseos cpe:/a:redhat:enterprise_linux:9::appstream |
|
| Red Hat | Red Hat Enterprise Linux 6 |
cpe:/o:redhat:enterprise_linux:6 |
|
| Red Hat | Red Hat Enterprise Linux 7 |
cpe:/o:redhat:enterprise_linux:7 |
|
| Red Hat | Red Hat Enterprise Linux 8 |
cpe:/o:redhat:enterprise_linux:8 |
|
| Red Hat | Red Hat Enterprise Linux 9 |
cpe:/o:redhat:enterprise_linux:9 |
|
| Red Hat | Red Hat Virtualization 4 |
cpe:/o:redhat:rhev_hypervisor:4 |
Date Public
2023-08-03 00:00
Credits
This issue was discovered by Laszlo Ersek (Red Hat).
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CVE-2023-4273 (GCVE-0-2023-4273)
Vulnerability from cvelistv5 – Published: 2023-08-09 14:53 – Updated: 2025-11-14 14:21
VLAI
EPSS
Title
Kernel: exfat: stack overflow in exfat_get_uniname_from_ext_entry
Summary
A flaw was found in the exFAT driver of the Linux kernel. The vulnerability exists in the implementation of the file name reconstruction function, which is responsible for reading file name entries from a directory index and merging file name parts belonging to one file into a single long file name. Since the file name characters are copied into a stack variable, a local privileged attacker could use this flaw to overflow the kernel stack.
Severity
6 (Medium)
SSVC
Exploitation: poc
Automatable: no
Technical Impact: total
CISA Coordinator (v2.0.3)
CWE
- CWE-121 - Stack-based Buffer Overflow
Assigner
References
10 references
| URL | Tags |
|---|---|
| https://access.redhat.com/errata/RHSA-2023:6583 | vendor-advisoryx_refsource_REDHAT |
| https://access.redhat.com/security/cve/CVE-2023-4273 | vdb-entryx_refsource_REDHAT |
| https://bugzilla.redhat.com/show_bug.cgi?id=2221609 | issue-trackingx_refsource_REDHAT |
| https://dfir.ru/2023/08/23/cve-2023-4273-a-vulner… | |
| https://lists.debian.org/debian-lts-announce/2023… | x_transferred |
| https://lists.fedoraproject.org/archives/list/pac… | x_transferred |
| https://lists.fedoraproject.org/archives/list/pac… | x_transferred |
| https://security.netapp.com/advisory/ntap-2023102… | x_transferred |
| https://www.debian.org/security/2023/dsa-5480 | x_transferred |
| https://www.debian.org/security/2023/dsa-5492 | x_transferred |
Impacted products
5 products
| Vendor | Product | Version | |
|---|---|---|---|
| Red Hat | Red Hat Enterprise Linux 9 |
Unaffected:
0:5.14.0-362.8.1.el9_3 , < *
(rpm)
cpe:/a:redhat:enterprise_linux:9::crb cpe:/o:redhat:enterprise_linux:9::baseos cpe:/a:redhat:enterprise_linux:9::appstream cpe:/a:redhat:enterprise_linux:9::realtime cpe:/a:redhat:enterprise_linux:9::nfv |
|
| Red Hat | Red Hat Enterprise Linux 6 |
cpe:/o:redhat:enterprise_linux:6 |
|
| Red Hat | Red Hat Enterprise Linux 7 |
cpe:/o:redhat:enterprise_linux:7 |
|
| Red Hat | Red Hat Enterprise Linux 8 |
cpe:/o:redhat:enterprise_linux:8 |
|
| Red Hat | Red Hat Enterprise Linux 9 |
cpe:/o:redhat:enterprise_linux:9 |
Date Public
2023-07-13 00:00
Credits
Red Hat would like to thank Maxim Suhanov for reporting this issue.
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CVE-2023-44466 (GCVE-0-2023-44466)
Vulnerability from cvelistv5 – Published: 2023-09-29 00:00 – Updated: 2024-08-02 20:07
VLAI
EPSS
Summary
An issue was discovered in net/ceph/messenger_v2.c in the Linux kernel before 6.4.5. There is an integer signedness error, leading to a buffer overflow and remote code execution via HELLO or one of the AUTH frames. This occurs because of an untrusted length taken from a TCP packet in ceph_decode_32.
Severity
No CVSS data available.
CWE
- n/a
Assigner
References
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"url": "https://www.spinics.net/lists/ceph-devel/msg57909.html"
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"url": "https://security.netapp.com/advisory/ntap-20231116-0003/"
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Trend slope:
-
(linear fit over daily sighting counts)
Show additional events:
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Experimental. This forecast is provided for visualization only and may change without notice. Do not use it for operational decisions.
Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.
Sightings
| Author | Source | Type | Date | Other |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or observed by the user.
- Confirmed: The vulnerability has been validated from an analyst's perspective.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
- Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
- Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
- Not confirmed: The user expressed doubt about the validity of the vulnerability.
- Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.
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