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CERTFR-2020-AVI-837
Vulnerability from certfr_avis - Published: - Updated:
De multiples vulnérabilités ont été découvertes dans le noyau Linux de SUSE. Certaines d'entre elles permettent à un attaquant de provoquer un problème de sécurité non spécifié par l'éditeur, un déni de service 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).
NoneImpacted products
References
| Title | Publication Time | Tags | |||
|---|---|---|---|---|---|
|
|||||
{
"$ref": "https://www.cert.ssi.gouv.fr/openapi.json",
"affected_systems": [
{
"description": "SUSE Linux Enterprise Module for Realtime 15-SP1",
"product": {
"name": "N/A",
"vendor": {
"name": "SUSE",
"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-2020-28974",
"url": "https://www.cve.org/CVERecord?id=CVE-2020-28974"
},
{
"name": "CVE-2020-28915",
"url": "https://www.cve.org/CVERecord?id=CVE-2020-28915"
},
{
"name": "CVE-2020-27777",
"url": "https://www.cve.org/CVERecord?id=CVE-2020-27777"
},
{
"name": "CVE-2020-4788",
"url": "https://www.cve.org/CVERecord?id=CVE-2020-4788"
},
{
"name": "CVE-2020-27786",
"url": "https://www.cve.org/CVERecord?id=CVE-2020-27786"
},
{
"name": "CVE-2018-20669",
"url": "https://www.cve.org/CVERecord?id=CVE-2018-20669"
},
{
"name": "CVE-2020-29371",
"url": "https://www.cve.org/CVERecord?id=CVE-2020-29371"
},
{
"name": "CVE-2020-15437",
"url": "https://www.cve.org/CVERecord?id=CVE-2020-15437"
},
{
"name": "CVE-2019-20934",
"url": "https://www.cve.org/CVERecord?id=CVE-2019-20934"
},
{
"name": "CVE-2020-25669",
"url": "https://www.cve.org/CVERecord?id=CVE-2020-25669"
},
{
"name": "CVE-2020-15436",
"url": "https://www.cve.org/CVERecord?id=CVE-2020-15436"
}
],
"links": [],
"reference": "CERTFR-2020-AVI-837",
"revisions": [
{
"description": "Version initiale",
"revision_date": "2020-12-21T00:00:00.000000"
}
],
"risks": [
{
"description": "Non sp\u00e9cifi\u00e9 par l\u0027\u00e9diteur"
},
{
"description": "D\u00e9ni de service"
},
{
"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 de\nSUSE. Certaines d\u0027entre elles permettent \u00e0 un attaquant de provoquer un\nprobl\u00e8me de s\u00e9curit\u00e9 non sp\u00e9cifi\u00e9 par l\u0027\u00e9diteur, un d\u00e9ni de service et\nune atteinte \u00e0 la confidentialit\u00e9 des donn\u00e9es.\n",
"title": "Multiples vuln\u00e9rabilit\u00e9s dans le noyau Linux de SUSE",
"vendor_advisories": [
{
"published_at": null,
"title": "Bulletin de s\u00e9curit\u00e9 SUSE suse-su-20203798-1 du 14 d\u00e9cembre 2020",
"url": "https://www.suse.com/support/update/announcement/2020/suse-su-20203798-1/"
}
]
}
CVE-2020-28974 (GCVE-0-2020-28974)
Vulnerability from cvelistv5 – Published: 2020-11-20 17:49 – Updated: 2024-08-04 16:48
VLAI?
EPSS
Summary
A slab-out-of-bounds read in fbcon in the Linux kernel before 5.9.7 could be used by local attackers to read privileged information or potentially crash the kernel, aka CID-3c4e0dff2095. This occurs because KD_FONT_OP_COPY in drivers/tty/vt/vt.c can be used for manipulations such as font height.
Severity ?
No CVSS data available.
CWE
- n/a
Assigner
References
| URL | Tags | ||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
|||||||||||||||||||||||
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CVE-2020-25669 (GCVE-0-2020-25669)
Vulnerability from cvelistv5 – Published: 2021-05-26 11:25 – Updated: 2024-08-04 15:40
VLAI?
EPSS
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.
Severity ?
No CVSS data available.
CWE
Assigner
References
| URL | Tags | |||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
||||||||||||||||||||||||||
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| n/a | Linux Kernel |
Affected:
5.9.4
|
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CVE-2018-20669 (GCVE-0-2018-20669)
Vulnerability from cvelistv5 – Published: 2019-03-18 16:33 – Updated: 2024-08-05 12:05
VLAI?
EPSS
Summary
An issue where a provided address with access_ok() is not checked was discovered in i915_gem_execbuffer2_ioctl in drivers/gpu/drm/i915/i915_gem_execbuffer.c in the Linux kernel through 4.19.13. A local attacker can craft a malicious IOCTL function call to overwrite arbitrary kernel memory, resulting in a Denial of Service or privilege escalation.
Severity ?
No CVSS data available.
CWE
- n/a
Assigner
References
| URL | Tags | |||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
||||||||||||||||||||||||||
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CVE-2020-29371 (GCVE-0-2020-29371)
Vulnerability from cvelistv5 – Published: 2020-11-28 06:19 – Updated: 2024-08-04 16:48
VLAI?
EPSS
Summary
An issue was discovered in romfs_dev_read in fs/romfs/storage.c in the Linux kernel before 5.8.4. Uninitialized memory leaks to userspace, aka CID-bcf85fcedfdd.
Severity ?
No CVSS data available.
CWE
- n/a
Assigner
References
| URL | Tags | |||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
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CVE-2020-28915 (GCVE-0-2020-28915)
Vulnerability from cvelistv5 – Published: 2020-11-18 07:59 – Updated: 2024-08-04 16:40
VLAI?
EPSS
Summary
A buffer over-read (at the framebuffer layer) in the fbcon code in the Linux kernel before 5.8.15 could be used by local attackers to read kernel memory, aka CID-6735b4632def.
Severity ?
No CVSS data available.
CWE
- n/a
Assigner
References
| URL | Tags | ||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
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CVE-2020-4788 (GCVE-0-2020-4788)
Vulnerability from cvelistv5 – Published: 2020-11-20 03:45 – Updated: 2024-09-16 19:05
VLAI?
EPSS
Summary
IBM Power9 (AIX 7.1, 7.2, and VIOS 3.1) processors could allow a local user to obtain sensitive information from the data in the L1 cache under extenuating circumstances. IBM X-Force ID: 189296.
Severity ?
CWE
- Obtain Information
Assigner
References
| URL | Tags | ||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
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CVE-2020-15436 (GCVE-0-2020-15436)
Vulnerability from cvelistv5 – Published: 2020-11-23 20:08 – Updated: 2024-08-04 13:15
VLAI?
EPSS
Summary
Use-after-free vulnerability in fs/block_dev.c in the Linux kernel before 5.8 allows local users to gain privileges or cause a denial of service by leveraging improper access to a certain error field.
Severity ?
No CVSS data available.
CWE
- Use After Free
Assigner
References
| URL | Tags | |||||||
|---|---|---|---|---|---|---|---|---|
|
||||||||
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| n/a | linux kernel |
Affected:
5.7 (verified), possibly others 4.18
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CVE-2020-27777 (GCVE-0-2020-27777)
Vulnerability from cvelistv5 – Published: 2020-12-15 16:57 – Updated: 2024-08-04 16:25
VLAI?
EPSS
Summary
A flaw was found in the way RTAS handled memory accesses in userspace to kernel communication. On a locked down (usually due to Secure Boot) guest system running on top of PowerVM or KVM hypervisors (pseries platform) a root like local user could use this flaw to further increase their privileges to that of a running kernel.
Severity ?
No CVSS data available.
CWE
Assigner
References
| URL | Tags | |||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
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CVE-2020-27786 (GCVE-0-2020-27786)
Vulnerability from cvelistv5 – Published: 2020-12-11 04:05 – Updated: 2024-08-04 16:25
VLAI?
EPSS
Summary
A flaw was found in the Linux kernel’s implementation of MIDI, where an attacker with a local account and the permissions to issue ioctl commands to midi devices could trigger a use-after-free issue. A write to this specific memory while freed and before use causes the flow of execution to change and possibly allow for memory corruption or privilege escalation. The highest threat from this vulnerability is to confidentiality, integrity, as well as system availability.
Severity ?
No CVSS data available.
CWE
Assigner
References
| URL | Tags | |||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
||||||||||||||
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CVE-2019-20934 (GCVE-0-2019-20934)
Vulnerability from cvelistv5 – Published: 2020-11-28 06:20 – Updated: 2024-08-05 03:00
VLAI?
EPSS
Summary
An issue was discovered in the Linux kernel before 5.2.6. On NUMA systems, the Linux fair scheduler has a use-after-free in show_numa_stats() because NUMA fault statistics are inappropriately freed, aka CID-16d51a590a8c.
Severity ?
No CVSS data available.
CWE
- n/a
Assigner
References
| URL | Tags | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
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CVE-2020-15437 (GCVE-0-2020-15437)
Vulnerability from cvelistv5 – Published: 2020-11-23 20:10 – Updated: 2024-08-04 13:15
VLAI?
EPSS
Summary
The Linux kernel before version 5.8 is vulnerable to a NULL pointer dereference in drivers/tty/serial/8250/8250_core.c:serial8250_isa_init_ports() that allows local users to cause a denial of service by using the p->serial_in pointer which uninitialized.
Severity ?
No CVSS data available.
CWE
- NULL Pointer Dereference
Assigner
References
| URL | Tags | ||||
|---|---|---|---|---|---|
|
|||||
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| n/a | linux kernel |
Affected:
5.7 (verified), possibly others 4.18
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Sightings
| Author | Source | Type | Date |
|---|
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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