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CERTFR-2020-AVI-637
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, 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).
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 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 12.04 ESM", "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-2020-25285", "url": "https://www.cve.org/CVERecord?id=CVE-2020-25285" }, { "name": "CVE-2020-25212", "url": "https://www.cve.org/CVERecord?id=CVE-2020-25212" }, { "name": "CVE-2020-16120", "url": "https://www.cve.org/CVERecord?id=CVE-2020-16120" }, { "name": "CVE-2020-14314", "url": "https://www.cve.org/CVERecord?id=CVE-2020-14314" }, { "name": "CVE-2020-26088", "url": "https://www.cve.org/CVERecord?id=CVE-2020-26088" }, { "name": "CVE-2020-14385", "url": "https://www.cve.org/CVERecord?id=CVE-2020-14385" }, { "name": "CVE-2019-19448", "url": "https://www.cve.org/CVERecord?id=CVE-2019-19448" }, { "name": "CVE-2020-16119", "url": "https://www.cve.org/CVERecord?id=CVE-2020-16119" }, { "name": "CVE-2018-10322", "url": "https://www.cve.org/CVERecord?id=CVE-2018-10322" }, { "name": "CVE-2020-25641", "url": "https://www.cve.org/CVERecord?id=CVE-2020-25641" } ], "initial_release_date": "2020-10-14T00:00:00", "last_revision_date": "2020-10-14T00:00:00", "links": [], "reference": "CERTFR-2020-AVI-637", "revisions": [ { "description": "Version initiale", "revision_date": "2020-10-14T00:00:00.000000" } ], "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" } ], "summary": "De multiples vuln\u00e9rabilit\u00e9s ont \u00e9t\u00e9 d\u00e9couvertes dans le noyau Linux\nd\u0027Ubuntu. Elles permettent \u00e0 un attaquant de provoquer une ex\u00e9cution de\ncode arbitraire, un d\u00e9ni de service, un contournement de la politique de\ns\u00e9curit\u00e9 et une atteinte \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-4578-1 du 14 octobre 2020", "url": "https://ubuntu.com/security/notices/USN-4578-1" }, { "published_at": null, "title": "Bulletin de s\u00e9curit\u00e9 Ubuntu USN-4576-1 du 14 octobre 2020", "url": "https://ubuntu.com/security/notices/USN-4576-1" }, { "published_at": null, "title": "Bulletin de s\u00e9curit\u00e9 Ubuntu USN-4579-1 du 14 octobre 2020", "url": "https://ubuntu.com/security/notices/USN-4579-1" }, { "published_at": null, "title": "Bulletin de s\u00e9curit\u00e9 Ubuntu USN-4580-1 du 14 octobre 2020", "url": "https://ubuntu.com/security/notices/USN-4580-1" }, { "published_at": null, "title": "Bulletin de s\u00e9curit\u00e9 Ubuntu USN-4577-1 du 14 octobre 2020", "url": "https://ubuntu.com/security/notices/USN-4577-1" } ] }
CVE-2020-16119 (GCVE-0-2020-16119)
Vulnerability from cvelistv5
Published
2021-01-14 01:10
Modified
2024-09-16 18:19
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- CWE-416 - Use After Free
Summary
Use-after-free vulnerability in the Linux kernel exploitable by a local attacker due to reuse of a DCCP socket with an attached dccps_hc_tx_ccid object as a listener after being released. Fixed in Ubuntu Linux kernel 5.4.0-51.56, 5.3.0-68.63, 4.15.0-121.123, 4.4.0-193.224, 3.13.0.182.191 and 3.2.0-149.196.
References
Impacted products
Vendor | Product | Version | ||
---|---|---|---|---|
Canonical | Linux kernel |
Version: 5.4 kernel < 5.4.0-51.56 Version: 5.3 kernel < 5.3.0-68.63 Version: 4.15 kernel < 4.15.0-121.123 Version: 4.4 kernel < 4.4.0-193.224 Version: 3.13 kernel < 3.13.0.182.191 Version: 3.2 kernel < 3.2.0-149.196 |
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CVE-2018-10322 (GCVE-0-2018-10322)
Vulnerability from cvelistv5
Published
2018-04-24 06:00
Modified
2024-08-05 07:39
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- n/a
Summary
The xfs_dinode_verify function in fs/xfs/libxfs/xfs_inode_buf.c in the Linux kernel through 4.16.3 allows local users to cause a denial of service (xfs_ilock_attr_map_shared invalid pointer dereference) via a crafted xfs image.
References
URL | Tags | |||||||||||||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
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"https://access.redhat.com/errata/RHSA-2018:3096" }, { "name": "USN-4578-1", "tags": [ "vendor-advisory", "x_refsource_UBUNTU", "x_transferred" ], "url": "https://usn.ubuntu.com/4578-1/" }, { "name": "USN-4579-1", "tags": [ "vendor-advisory", "x_refsource_UBUNTU", "x_transferred" ], "url": "https://usn.ubuntu.com/4579-1/" } ], "title": "CVE Program Container" } ], "cna": { "affected": [ { "product": "n/a", "vendor": "n/a", "versions": [ { "status": "affected", "version": "n/a" } ] } ], "datePublic": "2018-04-24T00:00:00", "descriptions": [ { "lang": "en", "value": "The xfs_dinode_verify function in fs/xfs/libxfs/xfs_inode_buf.c in the Linux kernel through 4.16.3 allows local users to cause a denial of service (xfs_ilock_attr_map_shared invalid pointer dereference) via a crafted xfs image." } ], "problemTypes": [ { "descriptions": [ { "description": "n/a", "lang": "en", "type": "text" } ] } ], "providerMetadata": { "dateUpdated": "2020-10-16T00:06:13", "orgId": 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"x_refsource_UBUNTU" ], "url": "https://usn.ubuntu.com/4579-1/" } ], "x_legacyV4Record": { "CVE_data_meta": { "ASSIGNER": "cve@mitre.org", "ID": "CVE-2018-10322", "STATE": "PUBLIC" }, "affects": { "vendor": { "vendor_data": [ { "product": { "product_data": [ { "product_name": "n/a", "version": { "version_data": [ { "version_value": "n/a" } ] } } ] }, "vendor_name": "n/a" } ] } }, "data_format": "MITRE", "data_type": "CVE", "data_version": "4.0", "description": { "description_data": [ { "lang": "eng", "value": "The xfs_dinode_verify function in fs/xfs/libxfs/xfs_inode_buf.c in the Linux kernel through 4.16.3 allows local users to cause a denial of service (xfs_ilock_attr_map_shared invalid pointer dereference) via a crafted xfs image." } ] }, "problemtype": { "problemtype_data": [ { "description": [ { "lang": "eng", "value": "n/a" } ] } ] }, "references": { "reference_data": [ { "name": "RHSA-2018:3083", "refsource": "REDHAT", "url": "https://access.redhat.com/errata/RHSA-2018:3083" }, 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"2018-04-24T00:00:00", "dateUpdated": "2024-08-05T07:39:06.779Z", "state": "PUBLISHED" }, "dataType": "CVE_RECORD", "dataVersion": "5.1" }
CVE-2019-19448 (GCVE-0-2019-19448)
Vulnerability from cvelistv5
Published
2019-12-08 01:01
Modified
2024-08-05 02:16
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- n/a
Summary
In the Linux kernel 5.0.21 and 5.3.11, mounting a crafted btrfs filesystem image, performing some operations, and then making a syncfs system call can lead to a use-after-free in try_merge_free_space in fs/btrfs/free-space-cache.c because the pointer to a left data structure can be the same as the pointer to a right data structure.
References
URL | Tags | |||||||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
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"mailing-list", "x_refsource_MLIST" ], "url": "https://lists.debian.org/debian-lts-announce/2020/10/msg00034.html" } ], "x_legacyV4Record": { "CVE_data_meta": { "ASSIGNER": "cve@mitre.org", "ID": "CVE-2019-19448", "STATE": "PUBLIC" }, "affects": { "vendor": { "vendor_data": [ { "product": { "product_data": [ { "product_name": "n/a", "version": { "version_data": [ { "version_value": "n/a" } ] } } ] }, "vendor_name": "n/a" } ] } }, "data_format": "MITRE", "data_type": "CVE", "data_version": "4.0", "description": { "description_data": [ { "lang": "eng", "value": "In the Linux kernel 5.0.21 and 5.3.11, mounting a crafted btrfs filesystem image, performing some operations, and then making a syncfs system call can lead to a use-after-free in try_merge_free_space in fs/btrfs/free-space-cache.c because the pointer to a left data structure can be the same as the pointer to a right data structure." } ] }, "problemtype": { "problemtype_data": [ { "description": [ { "lang": "eng", "value": "n/a" } ] } ] }, "references": { "reference_data": [ { "name": "https://github.com/bobfuzzer/CVE/tree/master/CVE-2019-19448", "refsource": "MISC", "url": "https://github.com/bobfuzzer/CVE/tree/master/CVE-2019-19448" }, { "name": "https://security.netapp.com/advisory/ntap-20200103-0001/", "refsource": "CONFIRM", "url": "https://security.netapp.com/advisory/ntap-20200103-0001/" }, { "name": "[debian-lts-announce] 20200928 [SECURITY] [DLA 2385-1] linux-4.19 security update", "refsource": "MLIST", "url": "https://lists.debian.org/debian-lts-announce/2020/09/msg00025.html" }, { "name": "USN-4578-1", "refsource": "UBUNTU", "url": "https://usn.ubuntu.com/4578-1/" }, { "name": "[debian-lts-announce] 20201030 [SECURITY] [DLA 2420-1] linux security update", "refsource": "MLIST", "url": "https://lists.debian.org/debian-lts-announce/2020/10/msg00032.html" }, { "name": "[debian-lts-announce] 20201031 [SECURITY] [DLA 2420-2] linux regression update", "refsource": "MLIST", "url": 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CVE-2020-25641 (GCVE-0-2020-25641)
Vulnerability from cvelistv5
Published
2020-10-06 13:33
Modified
2024-08-04 15:40
Severity ?
VLAI Severity ?
EPSS score ?
CWE
Summary
A flaw was found in the Linux kernel's implementation of biovecs in versions before 5.9-rc7. A zero-length biovec request issued by the block subsystem could cause the kernel to enter an infinite loop, causing a denial of service. This flaw allows a local attacker with basic privileges to issue requests to a block device, resulting in a denial of service. The highest threat from this vulnerability is to system availability.
References
URL | Tags | ||||||||||||||||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
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The highest threat from this vulnerability is to system availability." } ] }, "problemtype": { "problemtype_data": [ { "description": [ { "lang": "eng", "value": "CWE-835" } ] } ] }, "references": { "reference_data": [ { "name": "https://bugzilla.redhat.com/show_bug.cgi?id=1881424", "refsource": "MISC", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=1881424" }, { "name": "https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=7e24969022cbd61ddc586f14824fc205661bb124", "refsource": "MISC", "url": "https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=7e24969022cbd61ddc586f14824fc205661bb124" }, { "name": "https://www.kernel.org/doc/html/latest/block/biovecs.html", "refsource": "MISC", "url": "https://www.kernel.org/doc/html/latest/block/biovecs.html" }, { "name": "[oss-security] 20201006 Re: CVE-2020-25641 kernel: soft lockup when submitting zero length bvecs.", "refsource": "MLIST", "url": "http://www.openwall.com/lists/oss-security/2020/10/06/9" }, { "name": "openSUSE-SU-2020:1655", "refsource": "SUSE", "url": "http://lists.opensuse.org/opensuse-security-announce/2020-10/msg00021.html" }, { "name": "USN-4576-1", "refsource": "UBUNTU", "url": "https://usn.ubuntu.com/4576-1/" }, { "name": "openSUSE-SU-2020:1698", "refsource": "SUSE", "url": "http://lists.opensuse.org/opensuse-security-announce/2020-10/msg00042.html" }, { "name": "[debian-lts-announce] 20201030 [SECURITY] [DLA 2420-1] linux security update", "refsource": "MLIST", "url": "https://lists.debian.org/debian-lts-announce/2020/10/msg00032.html" }, { "name": "[debian-lts-announce] 20201031 [SECURITY] [DLA 2420-2] linux regression update", "refsource": "MLIST", "url": "https://lists.debian.org/debian-lts-announce/2020/10/msg00034.html" } ] } } } }, "cveMetadata": { "assignerOrgId": "53f830b8-0a3f-465b-8143-3b8a9948e749", "assignerShortName": "redhat", "cveId": "CVE-2020-25641", "datePublished": "2020-10-06T13:33:22", "dateReserved": "2020-09-16T00:00:00", "dateUpdated": "2024-08-04T15:40:36.461Z", "state": "PUBLISHED" }, "dataType": "CVE_RECORD", "dataVersion": "5.1" }
CVE-2020-16120 (GCVE-0-2020-16120)
Vulnerability from cvelistv5
Published
2021-02-10 19:45
Modified
2024-09-16 18:49
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- CWE-266 - Incorrect Privilege Assignment
Summary
Overlayfs did not properly perform permission checking when copying up files in an overlayfs and could be exploited from within a user namespace, if, for example, unprivileged user namespaces were allowed. It was possible to have a file not readable by an unprivileged user to be copied to a mountpoint controlled by the user, like a removable device. This was introduced in kernel version 4.19 by commit d1d04ef ("ovl: stack file ops"). This was fixed in kernel version 5.8 by commits 56230d9 ("ovl: verify permissions in ovl_path_open()"), 48bd024 ("ovl: switch to mounter creds in readdir") and 05acefb ("ovl: check permission to open real file"). Additionally, commits 130fdbc ("ovl: pass correct flags for opening real directory") and 292f902 ("ovl: call secutiry hook in ovl_real_ioctl()") in kernel 5.8 might also be desired or necessary. These additional commits introduced a regression in overlay mounts within user namespaces which prevented access to files with ownership outside of the user namespace. This regression was mitigated by subsequent commit b6650da ("ovl: do not fail because of O_NOATIMEi") in kernel 5.11.
References
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Impacted products
Vendor | Product | Version | ||
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Linux kernel | Linux kernel |
Version: 5.11-stable < 5.11.0 |
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CVE-2020-25212 (GCVE-0-2020-25212)
Vulnerability from cvelistv5
Published
2020-09-09 15:52
Modified
2024-08-04 15:33
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- n/a
Summary
A TOCTOU mismatch in the NFS client code in the Linux kernel before 5.8.3 could be used by local attackers to corrupt memory or possibly have unspecified other impact because a size check is in fs/nfs/nfs4proc.c instead of fs/nfs/nfs4xdr.c, aka CID-b4487b935452.
References
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"https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=b4487b93545214a9db8cbf32e86411677b0cca21", "refsource": "MISC", "url": "https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=b4487b93545214a9db8cbf32e86411677b0cca21" }, { "name": "https://twitter.com/grsecurity/status/1303370421958578179", "refsource": "MISC", "url": "https://twitter.com/grsecurity/status/1303370421958578179" }, { "name": "https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.8.3", "refsource": "MISC", "url": "https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.8.3" }, { "name": "USN-4527-1", "refsource": "UBUNTU", "url": "https://usn.ubuntu.com/4527-1/" }, { "name": "USN-4525-1", "refsource": "UBUNTU", "url": "https://usn.ubuntu.com/4525-1/" }, { "name": "[debian-lts-announce] 20200928 [SECURITY] [DLA 2385-1] linux-4.19 security update", "refsource": "MLIST", "url": "https://lists.debian.org/debian-lts-announce/2020/09/msg00025.html" }, { "name": 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"mitre", "cveId": "CVE-2020-25212", "datePublished": "2020-09-09T15:52:01", "dateReserved": "2020-09-09T00:00:00", "dateUpdated": "2024-08-04T15:33:05.351Z", "state": "PUBLISHED" }, "dataType": "CVE_RECORD", "dataVersion": "5.1" }
CVE-2020-26088 (GCVE-0-2020-26088)
Vulnerability from cvelistv5
Published
2020-09-24 14:06
Modified
2024-08-04 15:49
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- n/a
Summary
A missing CAP_NET_RAW check in NFC socket creation in net/nfc/rawsock.c in the Linux kernel before 5.8.2 could be used by local attackers to create raw sockets, bypassing security mechanisms, aka CID-26896f01467a.
References
URL | Tags | |||||||||||||||||||||||||
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|
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CVE-2020-14314 (GCVE-0-2020-14314)
Vulnerability from cvelistv5
Published
2020-09-15 00:00
Modified
2024-08-04 12:39
Severity ?
VLAI Severity ?
EPSS score ?
CWE
Summary
A memory out-of-bounds read flaw was found in the Linux kernel before 5.9-rc2 with the ext3/ext4 file system, in the way it accesses a directory with broken indexing. This flaw allows a local user to crash the system if the directory exists. The highest threat from this vulnerability is to system availability.
References
URL | Tags | |||||||||||||||||||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
Impacted products
Vendor | Product | Version | ||
---|---|---|---|---|
Linux Kernel | kernel |
Version: before 5.9-rc2 |
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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.
References
URL | Tags | ||||||||||||||||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
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CVE-2020-14385 (GCVE-0-2020-14385)
Vulnerability from cvelistv5
Published
2020-09-15 21:14
Modified
2024-08-04 12:46
Severity ?
VLAI Severity ?
EPSS score ?
CWE
Summary
A flaw was found in the Linux kernel before 5.9-rc4. A failure of the file system metadata validator in XFS can cause an inode with a valid, user-creatable extended attribute to be flagged as corrupt. This can lead to the filesystem being shutdown, or otherwise rendered inaccessible until it is remounted, leading to a denial of service. The highest threat from this vulnerability is to system availability.
References
URL | Tags | ||||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
Impacted products
Vendor | Product | Version | ||
---|---|---|---|---|
Linux Kernel | kernel |
Version: before 5.9-rc4 |
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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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