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CERTFR-2021-AVI-064
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 une atteinte à l'intégrité 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 | |||||||||||||||
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|
{ "$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-2020-27777", "url": "https://www.cve.org/CVERecord?id=CVE-2020-27777" }, { "name": "CVE-2020-25704", "url": "https://www.cve.org/CVERecord?id=CVE-2020-25704" }, { "name": "CVE-2018-13093", "url": "https://www.cve.org/CVERecord?id=CVE-2018-13093" }, { "name": "CVE-2019-19816", "url": "https://www.cve.org/CVERecord?id=CVE-2019-19816" }, { "name": "CVE-2020-25669", "url": "https://www.cve.org/CVERecord?id=CVE-2020-25669" }, { "name": "CVE-2020-28374", "url": "https://www.cve.org/CVERecord?id=CVE-2020-28374" }, { "name": "CVE-2019-19813", "url": "https://www.cve.org/CVERecord?id=CVE-2019-19813" } ], "initial_release_date": "2021-01-28T00:00:00", "last_revision_date": "2021-01-28T00:00:00", "links": [], "reference": "CERTFR-2021-AVI-064", "revisions": [ { "description": "Version initiale", "revision_date": "2021-01-28T00:00:00.000000" } ], "risks": [ { "description": "Atteinte \u00e0 l\u0027int\u00e9grit\u00e9 des donn\u00e9es" }, { "description": "Ex\u00e9cution de code arbitraire" }, { "description": "D\u00e9ni de service" }, { "description": "Atteinte \u00e0 la confidentialit\u00e9 des donn\u00e9es" } ], "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 une atteinte \u00e0\nl\u0027int\u00e9grit\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-4713-1 du 28 janvier 2021", "url": "https://ubuntu.com/security/notices/USN-4713-1" }, { "published_at": null, "title": "Bulletin de s\u00e9curit\u00e9 Ubuntu USN-4710-1 du 28 janvier 2021", "url": "https://ubuntu.com/security/notices/USN-4710-1" }, { "published_at": null, "title": "Bulletin de s\u00e9curit\u00e9 Ubuntu USN-4709-1 du 28 janvier 2021", "url": "https://ubuntu.com/security/notices/USN-4709-1" }, { "published_at": null, "title": "Bulletin de s\u00e9curit\u00e9 Ubuntu USN-4711-1 du 28 janvier 2021", "url": "https://ubuntu.com/security/notices/USN-4711-1" }, { "published_at": null, "title": "Bulletin de s\u00e9curit\u00e9 Ubuntu USN-4708-1 du 28 janvier 2021", "url": "https://ubuntu.com/security/notices/USN-4708-1" } ] }
CVE-2020-25704 (GCVE-0-2020-25704)
Vulnerability from cvelistv5
Published
2020-12-02 00:00
Modified
2024-08-04 15:40
Severity ?
VLAI Severity ?
EPSS score ?
CWE
Summary
A flaw memory leak in the Linux kernel performance monitoring subsystem was found in the way if using PERF_EVENT_IOC_SET_FILTER. A local user could use this flaw to starve the resources causing denial of service.
References
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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 | |||||||||||||||||||||||||
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Impacted products
Vendor | Product | Version | ||
---|---|---|---|---|
n/a | Linux Kernel |
Version: 5.9.4 |
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CVE-2019-19813 (GCVE-0-2019-19813)
Vulnerability from cvelistv5
Published
2019-12-17 05:43
Modified
2024-08-05 02:25
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- n/a
Summary
In the Linux kernel 5.0.21, mounting a crafted btrfs filesystem image, performing some operations, and then making a syncfs system call can lead to a use-after-free in __mutex_lock in kernel/locking/mutex.c. This is related to mutex_can_spin_on_owner in kernel/locking/mutex.c, __btrfs_qgroup_free_meta in fs/btrfs/qgroup.c, and btrfs_insert_delayed_items in fs/btrfs/delayed-inode.c.
References
URL | Tags | ||||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
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CVE-2020-28374 (GCVE-0-2020-28374)
Vulnerability from cvelistv5
Published
2021-01-13 03:07
Modified
2024-08-04 16:33
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- n/a
Summary
In drivers/target/target_core_xcopy.c in the Linux kernel before 5.10.7, insufficient identifier checking in the LIO SCSI target code can be used by remote attackers to read or write files via directory traversal in an XCOPY request, aka CID-2896c93811e3. For example, an attack can occur over a network if the attacker has access to one iSCSI LUN. The attacker gains control over file access because I/O operations are proxied via an attacker-selected backstore.
References
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CVE-2018-13093 (GCVE-0-2018-13093)
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/xfs_icache.c in the Linux kernel through 4.17.3. There is a NULL pointer dereference and panic in lookup_slow() on a NULL inode->i_ops pointer when doing pathwalks on a corrupted xfs image. This occurs because of a lack of proper validation that cached inodes are free during allocation.
References
URL | Tags | |||||||||||||||||||||||||
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CVE-2019-19816 (GCVE-0-2019-19816)
Vulnerability from cvelistv5
Published
2019-12-17 05:58
Modified
2024-08-05 02:25
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- n/a
Summary
In the Linux kernel 5.0.21, mounting a crafted btrfs filesystem image and performing some operations can cause slab-out-of-bounds write access in __btrfs_map_block in fs/btrfs/volumes.c, because a value of 1 for the number of data stripes is mishandled.
References
URL | Tags | |||||||||||||||||||
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CVE-2020-27777 (GCVE-0-2020-27777)
Vulnerability from cvelistv5
Published
2020-12-15 16:57
Modified
2024-08-04 16:25
Severity ?
VLAI Severity ?
EPSS score ?
CWE
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.
References
URL | Tags | |||||||||||||
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Sightings
Author | Source | Type | Date |
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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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