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CERTFR-2021-AVI-265
Vulnerability from certfr_avis
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, un déni de service et un contournement de la politique de sécurité.
Solution
Se référer au bulletin de sécurité de l'éditeur pour l'obtention des correctifs (cf. section Documentation).
NoneImpacted products
References
| Title | Publication Time | Tags | ||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
||||||||||||||||||||
{
"$ref": "https://www.cert.ssi.gouv.fr/openapi.json",
"affected_systems": [
{
"description": "Ubuntu 16.04 LTS",
"product": {
"name": "Ubuntu",
"vendor": {
"name": "Ubuntu",
"scada": false
}
}
},
{
"description": "Ubuntu 20.10",
"product": {
"name": "Ubuntu",
"vendor": {
"name": "Ubuntu",
"scada": false
}
}
},
{
"description": "Ubuntu 18.04 LTS",
"product": {
"name": "Ubuntu",
"vendor": {
"name": "Ubuntu",
"scada": false
}
}
},
{
"description": "Ubuntu 20.04 LTS",
"product": {
"name": "Ubuntu",
"vendor": {
"name": "Ubuntu",
"scada": false
}
}
},
{
"description": "Ubuntu 14.04 ESM",
"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-2021-20261",
"url": "https://www.cve.org/CVERecord?id=CVE-2021-20261"
},
{
"name": "CVE-2020-14390",
"url": "https://www.cve.org/CVERecord?id=CVE-2020-14390"
},
{
"name": "CVE-2021-20239",
"url": "https://www.cve.org/CVERecord?id=CVE-2021-20239"
},
{
"name": "CVE-2021-26931",
"url": "https://www.cve.org/CVERecord?id=CVE-2021-26931"
},
{
"name": "CVE-2020-25285",
"url": "https://www.cve.org/CVERecord?id=CVE-2020-25285"
},
{
"name": "CVE-2021-3411",
"url": "https://www.cve.org/CVERecord?id=CVE-2021-3411"
},
{
"name": "CVE-2019-19061",
"url": "https://www.cve.org/CVERecord?id=CVE-2019-19061"
},
{
"name": "CVE-2020-0466",
"url": "https://www.cve.org/CVERecord?id=CVE-2020-0466"
},
{
"name": "CVE-2021-29154",
"url": "https://www.cve.org/CVERecord?id=CVE-2021-29154"
},
{
"name": "CVE-2015-1350",
"url": "https://www.cve.org/CVERecord?id=CVE-2015-1350"
},
{
"name": "CVE-2021-26930",
"url": "https://www.cve.org/CVERecord?id=CVE-2021-26930"
},
{
"name": "CVE-2019-16231",
"url": "https://www.cve.org/CVERecord?id=CVE-2019-16231"
},
{
"name": "CVE-2020-27830",
"url": "https://www.cve.org/CVERecord?id=CVE-2020-27830"
},
{
"name": "CVE-2020-25639",
"url": "https://www.cve.org/CVERecord?id=CVE-2020-25639"
},
{
"name": "CVE-2017-16644",
"url": "https://www.cve.org/CVERecord?id=CVE-2017-16644"
},
{
"name": "CVE-2019-16232",
"url": "https://www.cve.org/CVERecord?id=CVE-2019-16232"
},
{
"name": "CVE-2020-36158",
"url": "https://www.cve.org/CVERecord?id=CVE-2020-36158"
},
{
"name": "CVE-2021-28038",
"url": "https://www.cve.org/CVERecord?id=CVE-2021-28038"
},
{
"name": "CVE-2021-28950",
"url": "https://www.cve.org/CVERecord?id=CVE-2021-28950"
},
{
"name": "CVE-2020-25669",
"url": "https://www.cve.org/CVERecord?id=CVE-2020-25669"
},
{
"name": "CVE-2021-3348",
"url": "https://www.cve.org/CVERecord?id=CVE-2021-3348"
},
{
"name": "CVE-2021-20194",
"url": "https://www.cve.org/CVERecord?id=CVE-2021-20194"
},
{
"name": "CVE-2021-3347",
"url": "https://www.cve.org/CVERecord?id=CVE-2021-3347"
},
{
"name": "CVE-2021-3178",
"url": "https://www.cve.org/CVERecord?id=CVE-2021-3178"
},
{
"name": "CVE-2018-13095",
"url": "https://www.cve.org/CVERecord?id=CVE-2018-13095"
},
{
"name": "CVE-2021-20268",
"url": "https://www.cve.org/CVERecord?id=CVE-2021-20268"
},
{
"name": "CVE-2020-14351",
"url": "https://www.cve.org/CVERecord?id=CVE-2020-14351"
},
{
"name": "CVE-2020-25645",
"url": "https://www.cve.org/CVERecord?id=CVE-2020-25645"
},
{
"name": "CVE-2020-0423",
"url": "https://www.cve.org/CVERecord?id=CVE-2020-0423"
},
{
"name": "CVE-2017-5967",
"url": "https://www.cve.org/CVERecord?id=CVE-2017-5967"
},
{
"name": "CVE-2020-0465",
"url": "https://www.cve.org/CVERecord?id=CVE-2020-0465"
},
{
"name": "CVE-2021-28375",
"url": "https://www.cve.org/CVERecord?id=CVE-2021-28375"
}
],
"initial_release_date": "2021-04-15T00:00:00",
"last_revision_date": "2021-04-15T00:00:00",
"links": [],
"reference": "CERTFR-2021-AVI-265",
"revisions": [
{
"description": "Version initiale",
"revision_date": "2021-04-15T00:00:00.000000"
}
],
"risks": [
{
"description": "Ex\u00e9cution de code arbitraire"
},
{
"description": "D\u00e9ni de service"
},
{
"description": "Contournement de la politique de s\u00e9curit\u00e9"
},
{
"description": "Atteinte \u00e0 la confidentialit\u00e9 des donn\u00e9es"
},
{
"description": "\u00c9l\u00e9vation de privil\u00e8ges"
}
],
"summary": "De multiples vuln\u00e9rabilit\u00e9s ont \u00e9t\u00e9 d\u00e9couvertes dans le noyau Linux\nd\u0027Ubuntu. Certaines d\u0027entre elles permettent \u00e0 un attaquant de provoquer\nune ex\u00e9cution de code arbitraire, un d\u00e9ni de service et un contournement\nde la politique de s\u00e9curit\u00e9.\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-4912-1 du 13 avril 2021",
"url": "https://ubuntu.com/security/notices/USN-4912-1"
},
{
"published_at": null,
"title": "Bulletin de s\u00e9curit\u00e9 Ubuntu USN-4904-1 du 13 avril 2021",
"url": "https://ubuntu.com/security/notices/USN-4904-1"
},
{
"published_at": null,
"title": "Bulletin de s\u00e9curit\u00e9 Ubuntu USN-4910-1 du 13 avril 2021",
"url": "https://ubuntu.com/security/notices/USN-4910-1"
},
{
"published_at": null,
"title": "Bulletin de s\u00e9curit\u00e9 Ubuntu USN-4907-1 du 13 avril 2021",
"url": "https://ubuntu.com/security/notices/USN-4907-1"
},
{
"published_at": null,
"title": "Bulletin de s\u00e9curit\u00e9 Ubuntu USN-4911-1 du 13 avril 2021",
"url": "https://ubuntu.com/security/notices/USN-4911-1"
},
{
"published_at": null,
"title": "Bulletin de s\u00e9curit\u00e9 Ubuntu USN-4909-1 du 13 avril 2021",
"url": "https://ubuntu.com/security/notices/USN-4909-1"
}
]
}
CVE-2021-20268 (GCVE-0-2021-20268)
Vulnerability from cvelistv5
Published
2021-03-09 17:16
Modified
2024-08-03 17:37
Severity ?
VLAI Severity ?
EPSS score ?
CWE
Summary
An out-of-bounds access flaw was found in the Linux kernel's implementation of the eBPF code verifier in the way a user running the eBPF script calls dev_map_init_map or sock_map_alloc. This flaw allows a local user to crash the system or possibly escalate their privileges. The highest threat from this vulnerability is to confidentiality, integrity, as well as system availability.
References
| URL | Tags | |
|---|---|---|
|
|
||
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CVE-2021-26930 (GCVE-0-2021-26930)
Vulnerability from cvelistv5
Published
2021-02-17 00:00
Modified
2024-08-03 20:33
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- n/a
Summary
An issue was discovered in the Linux kernel 3.11 through 5.10.16, as used by Xen. To service requests to the PV backend, the driver maps grant references provided by the frontend. In this process, errors may be encountered. In one case, an error encountered earlier might be discarded by later processing, resulting in the caller assuming successful mapping, and hence subsequent operations trying to access space that wasn't mapped. In another case, internal state would be insufficiently updated, preventing safe recovery from the error. This affects drivers/block/xen-blkback/blkback.c.
References
{
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{
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CVE-2017-16644 (GCVE-0-2017-16644)
Vulnerability from cvelistv5
Published
2017-11-07 23:00
Modified
2024-08-05 20:27
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- n/a
Summary
The hdpvr_probe function in drivers/media/usb/hdpvr/hdpvr-core.c in the Linux kernel through 4.13.11 allows local users to cause a denial of service (improper error handling and system crash) or possibly have unspecified other impact via a crafted USB device.
References
| URL | Tags | ||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
|||||||||||||||||
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},
"references": [
{
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"url": "https://groups.google.com/d/msg/syzkaller/ngC5SLvxPm4/gduhCARhAwAJ"
},
{
"name": "USN-3754-1",
"tags": [
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"url": "https://usn.ubuntu.com/3754-1/"
},
{
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"url": "https://patchwork.kernel.org/patch/9966135/"
},
{
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"x_transferred"
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"url": "https://www.debian.org/security/2017/dsa-4073"
},
{
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"tags": [
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"x_refsource_BID",
"x_transferred"
],
"url": "http://www.securityfocus.com/bid/101842"
}
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CVE-2020-0465 (GCVE-0-2020-0465)
Vulnerability from cvelistv5
Published
2020-12-14 21:51
Modified
2024-08-04 06:02
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- Elevation of privilege
Summary
In various methods of hid-multitouch.c, there is a possible out of bounds write due to a missing bounds check. This could lead to local escalation of privilege with no additional execution privileges needed. User interaction is not needed for exploitation.Product: AndroidVersions: Android kernelAndroid ID: A-162844689References: Upstream kernel
References
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CVE-2020-0423 (GCVE-0-2020-0423)
Vulnerability from cvelistv5
Published
2020-10-14 13:07
Modified
2024-08-04 06:02
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- Elevation of privilege
Summary
In binder_release_work of binder.c, there is a possible use-after-free due to improper locking. This could lead to local escalation of privilege in the kernel with no additional execution privileges needed. User interaction is not needed for exploitation.Product: AndroidVersions: Android kernelAndroid ID: A-161151868References: N/A
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CVE-2019-16232 (GCVE-0-2019-16232)
Vulnerability from cvelistv5
Published
2019-09-11 15:30
Modified
2024-08-05 01:10
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- n/a
Summary
drivers/net/wireless/marvell/libertas/if_sdio.c in the Linux kernel 5.2.14 does not check the alloc_workqueue return value, leading to a NULL pointer dereference.
References
| URL | Tags | |||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
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CVE-2018-13095 (GCVE-0-2018-13095)
Vulnerability from cvelistv5
Published
2018-07-03 05:00
Modified
2024-08-05 08:52
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- n/a
Summary
An issue was discovered in fs/xfs/libxfs/xfs_inode_buf.c in the Linux kernel through 4.17.3. A denial of service (memory corruption and BUG) can occur for a corrupted xfs image upon encountering an inode that is in extent format, but has more extents than fit in the inode fork.
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CVE-2021-28950 (GCVE-0-2021-28950)
Vulnerability from cvelistv5
Published
2021-03-20 19:55
Modified
2024-08-03 21:55
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- n/a
Summary
An issue was discovered in fs/fuse/fuse_i.h in the Linux kernel before 5.11.8. A "stall on CPU" can occur because a retry loop continually finds the same bad inode, aka CID-775c5033a0d1.
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CVE-2015-1350 (GCVE-0-2015-1350)
Vulnerability from cvelistv5
Published
2016-05-02 10:00
Modified
2024-08-06 04:40
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- n/a
Summary
The VFS subsystem in the Linux kernel 3.x provides an incomplete set of requirements for setattr operations that underspecifies removing extended privilege attributes, which allows local users to cause a denial of service (capability stripping) via a failed invocation of a system call, as demonstrated by using chown to remove a capability from the ping or Wireshark dumpcap program.
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CVE-2020-14390 (GCVE-0-2020-14390)
Vulnerability from cvelistv5
Published
2020-09-18 17:42
Modified
2024-08-04 12:46
Severity ?
VLAI Severity ?
EPSS score ?
CWE
Summary
A flaw was found in the Linux kernel in versions before 5.9-rc6. When changing screen size, an out-of-bounds memory write can occur leading to memory corruption or a denial of service. Due to the nature of the flaw, privilege escalation cannot be fully ruled out.
References
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|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
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CVE-2020-25669 (GCVE-0-2020-25669)
Vulnerability from cvelistv5
Published
2021-05-26 11:25
Modified
2024-08-04 15:40
Severity ?
VLAI Severity ?
EPSS score ?
CWE
Summary
A vulnerability was found in the Linux Kernel where the function sunkbd_reinit having been scheduled by sunkbd_interrupt before sunkbd being freed. Though the dangling pointer is set to NULL in sunkbd_disconnect, there is still an alias in sunkbd_reinit causing Use After Free.
References
| URL | Tags | |||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
||||||||||||||||||||||||||
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| n/a | Linux Kernel |
Version: 5.9.4 |
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CVE-2021-20261 (GCVE-0-2021-20261)
Vulnerability from cvelistv5
Published
2021-03-11 20:10
Modified
2024-08-03 17:37
Severity ?
VLAI Severity ?
EPSS score ?
CWE
Summary
A race condition was found in the Linux kernels implementation of the floppy disk drive controller driver software. The impact of this issue is lessened by the fact that the default permissions on the floppy device (/dev/fd0) are restricted to root. If the permissions on the device have changed the impact changes greatly. In the default configuration root (or equivalent) permissions are required to attack this flaw.
References
| URL | Tags | |
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CVE-2021-29154 (GCVE-0-2021-29154)
Vulnerability from cvelistv5
Published
2021-04-08 00:00
Modified
2024-08-03 22:02
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- n/a
Summary
BPF JIT compilers in the Linux kernel through 5.11.12 have incorrect computation of branch displacements, allowing them to execute arbitrary code within the kernel context. This affects arch/x86/net/bpf_jit_comp.c and arch/x86/net/bpf_jit_comp32.c.
References
| URL | Tags | |||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
||||||||||||||||||||||||||||||||
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CVE-2019-16231 (GCVE-0-2019-16231)
Vulnerability from cvelistv5
Published
2019-09-11 15:30
Modified
2024-08-05 01:10
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- n/a
Summary
drivers/net/fjes/fjes_main.c in the Linux kernel 5.2.14 does not check the alloc_workqueue return value, leading to a NULL pointer dereference.
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CVE-2017-5967 (GCVE-0-2017-5967)
Vulnerability from cvelistv5
Published
2017-02-14 06:30
Modified
2024-08-05 15:18
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- n/a
Summary
The time subsystem in the Linux kernel through 4.9.9, when CONFIG_TIMER_STATS is enabled, allows local users to discover real PID values (as distinguished from PID values inside a PID namespace) by reading the /proc/timer_list file, related to the print_timer function in kernel/time/timer_list.c and the __timer_stats_timer_set_start_info function in kernel/time/timer.c.
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CVE-2021-3178 (GCVE-0-2021-3178)
Vulnerability from cvelistv5
Published
2021-01-19 06:44
Modified
2024-08-03 16:45
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- n/a
Summary
fs/nfsd/nfs3xdr.c in the Linux kernel through 5.10.8, when there is an NFS export of a subdirectory of a filesystem, allows remote attackers to traverse to other parts of the filesystem via READDIRPLUS. NOTE: some parties argue that such a subdirectory export is not intended to prevent this attack; see also the exports(5) no_subtree_check default behavior
References
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CVE-2020-25285 (GCVE-0-2020-25285)
Vulnerability from cvelistv5
Published
2020-09-13 17:28
Modified
2024-08-04 15:33
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- n/a
Summary
A race condition between hugetlb sysctl handlers in mm/hugetlb.c in the Linux kernel before 5.8.8 could be used by local attackers to corrupt memory, cause a NULL pointer dereference, or possibly have unspecified other impact, aka CID-17743798d812.
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CVE-2021-3347 (GCVE-0-2021-3347)
Vulnerability from cvelistv5
Published
2021-01-29 16:56
Modified
2025-07-24 03:55
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- n/a
Summary
An issue was discovered in the Linux kernel through 5.10.11. PI futexes have a kernel stack use-after-free during fault handling, allowing local users to execute code in the kernel, aka CID-34b1a1ce1458.
References
| URL | Tags | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
|||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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CVE-2020-0466 (GCVE-0-2020-0466)
Vulnerability from cvelistv5
Published
2020-12-14 21:50
Modified
2024-08-04 06:02
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- Elevation of privilege
Summary
In do_epoll_ctl and ep_loop_check_proc of eventpoll.c, there is a possible use after free due to a logic error. This could lead to local escalation of privilege with no additional execution privileges needed. User interaction is not needed for exploitation.Product: AndroidVersions: Android kernelAndroid ID: A-147802478References: Upstream kernel
References
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CVE-2021-20239 (GCVE-0-2021-20239)
Vulnerability from cvelistv5
Published
2021-05-28 10:42
Modified
2024-08-03 17:37
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- CWE-822 - ->CWE-200
Summary
A flaw was found in the Linux kernel in versions before 5.4.92 in the BPF protocol. This flaw allows an attacker with a local account to leak information about kernel internal addresses. The highest threat from this vulnerability is to confidentiality.
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CVE-2021-28375 (GCVE-0-2021-28375)
Vulnerability from cvelistv5
Published
2021-03-15 04:51
Modified
2024-08-03 21:40
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- n/a
Summary
An issue was discovered in the Linux kernel through 5.11.6. fastrpc_internal_invoke in drivers/misc/fastrpc.c does not prevent user applications from sending kernel RPC messages, aka CID-20c40794eb85. This is a related issue to CVE-2019-2308.
References
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CVE-2021-3411 (GCVE-0-2021-3411)
Vulnerability from cvelistv5
Published
2021-03-09 19:08
Modified
2024-08-03 16:53
Severity ?
VLAI Severity ?
EPSS score ?
CWE
Summary
A flaw was found in the Linux kernel in versions prior to 5.10. A violation of memory access was found while detecting a padding of int3 in the linking state. The highest threat from this vulnerability is to data confidentiality and integrity as well as system availability.
References
| URL | Tags | |||||||
|---|---|---|---|---|---|---|---|---|
|
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Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| n/a | Linux kernel |
Version: Linux kernel 5.10 |
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CVE-2020-27830 (GCVE-0-2020-27830)
Vulnerability from cvelistv5
Published
2021-05-13 14:15
Modified
2024-08-04 16:25
Severity ?
VLAI Severity ?
EPSS score ?
CWE
Summary
A vulnerability was found in Linux Kernel where in the spk_ttyio_receive_buf2() function, it would dereference spk_ttyio_synth without checking whether it is NULL or not, and may lead to a NULL-ptr deref crash.
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CVE-2020-36158 (GCVE-0-2020-36158)
Vulnerability from cvelistv5
Published
2021-01-05 04:25
Modified
2024-08-04 17:23
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- n/a
Summary
mwifiex_cmd_802_11_ad_hoc_start in drivers/net/wireless/marvell/mwifiex/join.c in the Linux kernel through 5.10.4 might allow remote attackers to execute arbitrary code via a long SSID value, aka CID-5c455c5ab332.
References
| URL | Tags | ||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
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CVE-2021-28038 (GCVE-0-2021-28038)
Vulnerability from cvelistv5
Published
2021-03-05 00:00
Modified
2024-08-03 21:33
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- n/a
Summary
An issue was discovered in the Linux kernel through 5.11.3, as used with Xen PV. A certain part of the netback driver lacks necessary treatment of errors such as failed memory allocations (as a result of changes to the handling of grant mapping errors). A host OS denial of service may occur during misbehavior of a networking frontend driver. NOTE: this issue exists because of an incomplete fix for CVE-2021-26931.
References
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CVE-2021-3348 (GCVE-0-2021-3348)
Vulnerability from cvelistv5
Published
2021-02-01 03:43
Modified
2024-08-03 16:53
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- n/a
Summary
nbd_add_socket in drivers/block/nbd.c in the Linux kernel through 5.10.12 has an ndb_queue_rq use-after-free that could be triggered by local attackers (with access to the nbd device) via an I/O request at a certain point during device setup, aka CID-b98e762e3d71.
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CVE-2019-19061 (GCVE-0-2019-19061)
Vulnerability from cvelistv5
Published
2019-11-18 05:24
Modified
2024-08-05 02:09
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- n/a
Summary
A memory leak in the adis_update_scan_mode_burst() function in drivers/iio/imu/adis_buffer.c in the Linux kernel before 5.3.9 allows attackers to cause a denial of service (memory consumption), aka CID-9c0530e898f3.
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CVE-2021-20194 (GCVE-0-2021-20194)
Vulnerability from cvelistv5
Published
2021-02-23 22:33
Modified
2024-08-03 17:30
Severity ?
VLAI Severity ?
EPSS score ?
CWE
Summary
There is a vulnerability in the linux kernel versions higher than 5.2 (if kernel compiled with config params CONFIG_BPF_SYSCALL=y , CONFIG_BPF=y , CONFIG_CGROUPS=y , CONFIG_CGROUP_BPF=y , CONFIG_HARDENED_USERCOPY not set, and BPF hook to getsockopt is registered). As result of BPF execution, the local user can trigger bug in __cgroup_bpf_run_filter_getsockopt() function that can lead to heap overflow (because of non-hardened usercopy). The impact of attack could be deny of service or possibly privileges escalation.
References
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|---|---|---|---|---|---|---|---|---|
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CVE-2020-25645 (GCVE-0-2020-25645)
Vulnerability from cvelistv5
Published
2020-10-13 19:52
Modified
2024-08-04 15:40
Severity ?
VLAI Severity ?
EPSS score ?
CWE
Summary
A flaw was found in the Linux kernel in versions before 5.9-rc7. Traffic between two Geneve endpoints may be unencrypted when IPsec is configured to encrypt traffic for the specific UDP port used by the GENEVE tunnel allowing anyone between the two endpoints to read the traffic unencrypted. The main threat from this vulnerability is to data confidentiality.
References
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CVE-2020-14351 (GCVE-0-2020-14351)
Vulnerability from cvelistv5
Published
2020-12-03 16:43
Modified
2024-08-04 12:39
Severity ?
VLAI Severity ?
EPSS score ?
CWE
Summary
A flaw was found in the Linux kernel. A use-after-free memory flaw was found in the perf subsystem allowing a local attacker with permission to monitor perf events to corrupt memory and possibly escalate privileges. The highest threat from this vulnerability is to data confidentiality and integrity as well as system availability.
References
| URL | Tags | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
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CVE-2020-25639 (GCVE-0-2020-25639)
Vulnerability from cvelistv5
Published
2021-03-04 21:56
Modified
2024-08-04 15:40
Severity ?
VLAI Severity ?
EPSS score ?
CWE
Summary
A NULL pointer dereference flaw was found in the Linux kernel's GPU Nouveau driver functionality in versions prior to 5.12-rc1 in the way the user calls ioctl DRM_IOCTL_NOUVEAU_CHANNEL_ALLOC. This flaw allows a local user to crash the system.
References
| URL | Tags | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
|
|||||||||||
Impacted products
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"refsource": "FEDORA",
"url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/SUCBCKRHWP3UD2AVVYQJE7BIJEMCMXW5/"
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]
}
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}
},
"cveMetadata": {
"assignerOrgId": "53f830b8-0a3f-465b-8143-3b8a9948e749",
"assignerShortName": "redhat",
"cveId": "CVE-2020-25639",
"datePublished": "2021-03-04T21:56:28",
"dateReserved": "2020-09-16T00:00:00",
"dateUpdated": "2024-08-04T15:40:36.204Z",
"state": "PUBLISHED"
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CVE-2021-26931 (GCVE-0-2021-26931)
Vulnerability from cvelistv5
Published
2021-02-17 00:00
Modified
2024-08-03 20:33
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- n/a
Summary
An issue was discovered in the Linux kernel 2.6.39 through 5.10.16, as used in Xen. Block, net, and SCSI backends consider certain errors a plain bug, deliberately causing a kernel crash. For errors potentially being at least under the influence of guests (such as out of memory conditions), it isn't correct to assume a plain bug. Memory allocations potentially causing such crashes occur only when Linux is running in PV mode, though. This affects drivers/block/xen-blkback/blkback.c and drivers/xen/xen-scsiback.c.
References
| URL | Tags | ||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
|||||||||||||||||||||||||||||
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{
"name": "[debian-lts-announce] 20210309 [SECURITY] [DLA 2586-1] linux security update",
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{
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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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