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CERTFR-2020-AVI-421
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 à distance 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 19.10",
"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-2019-19036",
"url": "https://www.cve.org/CVERecord?id=CVE-2019-19036"
},
{
"name": "CVE-2020-10711",
"url": "https://www.cve.org/CVERecord?id=CVE-2020-10711"
},
{
"name": "CVE-2020-12770",
"url": "https://www.cve.org/CVERecord?id=CVE-2020-12770"
},
{
"name": "CVE-2020-8992",
"url": "https://www.cve.org/CVERecord?id=CVE-2020-8992"
},
{
"name": "CVE-2019-19462",
"url": "https://www.cve.org/CVERecord?id=CVE-2019-19462"
},
{
"name": "CVE-2020-10751",
"url": "https://www.cve.org/CVERecord?id=CVE-2020-10751"
},
{
"name": "CVE-2020-10732",
"url": "https://www.cve.org/CVERecord?id=CVE-2020-10732"
},
{
"name": "CVE-2019-19377",
"url": "https://www.cve.org/CVERecord?id=CVE-2019-19377"
},
{
"name": "CVE-2019-12380",
"url": "https://www.cve.org/CVERecord?id=CVE-2019-12380"
},
{
"name": "CVE-2020-13143",
"url": "https://www.cve.org/CVERecord?id=CVE-2020-13143"
},
{
"name": "CVE-2019-19816",
"url": "https://www.cve.org/CVERecord?id=CVE-2019-19816"
},
{
"name": "CVE-2020-10690",
"url": "https://www.cve.org/CVERecord?id=CVE-2020-10690"
},
{
"name": "CVE-2019-19318",
"url": "https://www.cve.org/CVERecord?id=CVE-2019-19318"
},
{
"name": "CVE-2019-16089",
"url": "https://www.cve.org/CVERecord?id=CVE-2019-16089"
},
{
"name": "CVE-2019-19039",
"url": "https://www.cve.org/CVERecord?id=CVE-2019-19039"
},
{
"name": "CVE-2019-19813",
"url": "https://www.cve.org/CVERecord?id=CVE-2019-19813"
},
{
"name": "CVE-2020-12768",
"url": "https://www.cve.org/CVERecord?id=CVE-2020-12768"
}
],
"initial_release_date": "2020-07-09T00:00:00",
"last_revision_date": "2020-07-09T00:00:00",
"links": [],
"reference": "CERTFR-2020-AVI-421",
"revisions": [
{
"description": "Version initiale",
"revision_date": "2020-07-09T00:00:00.000000"
}
],
"risks": [
{
"description": "D\u00e9ni de service \u00e0 distance"
},
{
"description": "Ex\u00e9cution de code arbitraire"
},
{
"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. Certaines d\u0027entre elles permettent \u00e0 un attaquant de provoquer\nune ex\u00e9cution de code arbitraire, un d\u00e9ni de service \u00e0 distance et un\ncontournement de 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-4414-1 du 06 juillet 2020",
"url": "https://ubuntu.com/security/notices/USN-4414-1"
},
{
"published_at": null,
"title": "Bulletin de s\u00e9curit\u00e9 Ubuntu USN-4411-1 du 06 juillet 2020",
"url": "https://ubuntu.com/security/notices/USN-4411-1"
},
{
"published_at": null,
"title": "Bulletin de s\u00e9curit\u00e9 Ubuntu USN-4412-1 du 06 juillet 2020",
"url": "https://ubuntu.com/security/notices/USN-4412-1"
},
{
"published_at": null,
"title": "Bulletin de s\u00e9curit\u00e9 Ubuntu USN-4419-1 du 06 juillet 2020",
"url": "https://ubuntu.com/security/notices/USN-4419-1"
},
{
"published_at": null,
"title": "Bulletin de s\u00e9curit\u00e9 Ubuntu USN-4413-1 du 02 juillet 2020",
"url": "https://ubuntu.com/security/notices/USN-4413-1"
}
]
}
CVE-2019-19036 (GCVE-0-2019-19036)
Vulnerability from cvelistv5
Published
2019-11-21 02:00
Modified
2024-08-05 02:09
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- n/a
Summary
btrfs_root_node in fs/btrfs/ctree.c in the Linux kernel through 5.3.12 allows a NULL pointer dereference because rcu_dereference(root->node) can be zero.
References
| URL | Tags | ||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
|||||||||||||||||
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CVE-2020-8992 (GCVE-0-2020-8992)
Vulnerability from cvelistv5
Published
2020-02-14 04:27
Modified
2024-08-04 10:19
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- n/a
Summary
ext4_protect_reserved_inode in fs/ext4/block_validity.c in the Linux kernel through 5.5.3 allows attackers to cause a denial of service (soft lockup) via a crafted journal size.
References
| URL | Tags | |||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
||||||||||||||||||||||||||
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CVE-2020-10711 (GCVE-0-2020-10711)
Vulnerability from cvelistv5
Published
2020-05-22 14:09
Modified
2024-08-04 11:14
Severity ?
VLAI Severity ?
EPSS score ?
CWE
Summary
A NULL pointer dereference flaw was found in the Linux kernel's SELinux subsystem in versions before 5.7. This flaw occurs while importing the Commercial IP Security Option (CIPSO) protocol's category bitmap into the SELinux extensible bitmap via the' ebitmap_netlbl_import' routine. While processing the CIPSO restricted bitmap tag in the 'cipso_v4_parsetag_rbm' routine, it sets the security attribute to indicate that the category bitmap is present, even if it has not been allocated. This issue leads to a NULL pointer dereference issue while importing the same category bitmap into SELinux. This flaw allows a remote network user to crash the system kernel, resulting in a denial of service.
References
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CVE-2019-19377 (GCVE-0-2019-19377)
Vulnerability from cvelistv5
Published
2019-11-29 15:55
Modified
2024-08-05 02:16
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 unmounting can lead to a use-after-free in btrfs_queue_work in fs/btrfs/async-thread.c.
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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.
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CVE-2020-13143 (GCVE-0-2020-13143)
Vulnerability from cvelistv5
Published
2020-05-18 17:50
Modified
2024-08-04 12:11
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- n/a
Summary
gadget_dev_desc_UDC_store in drivers/usb/gadget/configfs.c in the Linux kernel 3.16 through 5.6.13 relies on kstrdup without considering the possibility of an internal '\0' value, which allows attackers to trigger an out-of-bounds read, aka CID-15753588bcd4.
References
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|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
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CVE-2019-19318 (GCVE-0-2019-19318)
Vulnerability from cvelistv5
Published
2019-11-27 23:41
Modified
2024-08-05 02:16
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- n/a
Summary
In the Linux kernel 5.3.11, mounting a crafted btrfs image twice can cause an rwsem_down_write_slowpath use-after-free because (in rwsem_can_spin_on_owner in kernel/locking/rwsem.c) rwsem_owner_flags returns an already freed pointer,
References
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CVE-2019-12380 (GCVE-0-2019-12380)
Vulnerability from cvelistv5
Published
2019-05-28 02:05
Modified
2024-08-04 23:17
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- n/a
Summary
**DISPUTED** An issue was discovered in the efi subsystem in the Linux kernel through 5.1.5. phys_efi_set_virtual_address_map in arch/x86/platform/efi/efi.c and efi_call_phys_prolog in arch/x86/platform/efi/efi_64.c mishandle memory allocation failures. NOTE: This id is disputed as not being an issue because “All the code touched by the referenced commit runs only at boot, before any user processes are started. Therefore, there is no possibility for an unprivileged user to control it.”.
References
| URL | Tags | ||||||||||||||||||||||||||||||||||
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CVE-2020-10690 (GCVE-0-2020-10690)
Vulnerability from cvelistv5
Published
2020-05-08 13:48
Modified
2024-08-04 11:06
Severity ?
VLAI Severity ?
EPSS score ?
CWE
Summary
There is a use-after-free in kernel versions before 5.5 due to a race condition between the release of ptp_clock and cdev while resource deallocation. When a (high privileged) process allocates a ptp device file (like /dev/ptpX) and voluntarily goes to sleep. During this time if the underlying device is removed, it can cause an exploitable condition as the process wakes up to terminate and clean all attached files. The system crashes due to the cdev structure being invalid (as already freed) which is pointed to by the inode.
References
| URL | Tags | |||||||||||||||||||
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CVE-2020-10732 (GCVE-0-2020-10732)
Vulnerability from cvelistv5
Published
2020-06-12 00:00
Modified
2024-08-04 11:14
Severity ?
VLAI Severity ?
EPSS score ?
CWE
Summary
A flaw was found in the Linux kernel's implementation of Userspace core dumps. This flaw allows an attacker with a local account to crash a trivial program and exfiltrate private kernel data.
References
| URL | Tags | |||||||||||||||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
||||||||||||||||||||||||||||||||||||||||||||
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| Linux kernel | kernel |
Version: introduced in commit 4206d3aa1978e44f58bfa4e1c9d8d35cbf19c187 |
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CVE-2019-16089 (GCVE-0-2019-16089)
Vulnerability from cvelistv5
Published
2019-09-06 22:02
Modified
2024-08-05 01:03
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- n/a
Summary
An issue was discovered in the Linux kernel through 5.2.13. nbd_genl_status in drivers/block/nbd.c does not check the nla_nest_start_noflag return value.
References
| URL | Tags | |||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
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CVE-2020-10751 (GCVE-0-2020-10751)
Vulnerability from cvelistv5
Published
2020-05-26 14:54
Modified
2024-08-04 11:14
Severity ?
VLAI Severity ?
EPSS score ?
CWE
Summary
A flaw was found in the Linux kernels SELinux LSM hook implementation before version 5.7, where it incorrectly assumed that an skb would only contain a single netlink message. The hook would incorrectly only validate the first netlink message in the skb and allow or deny the rest of the messages within the skb with the granted permission without further processing.
References
| URL | Tags | |||||||||||||||||||||||||||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| The Linux Foundation | kernel |
Version: before 5.7 |
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CVE-2019-19462 (GCVE-0-2019-19462)
Vulnerability from cvelistv5
Published
2019-11-30 00:57
Modified
2024-08-05 02:16
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- n/a
Summary
relay_open in kernel/relay.c in the Linux kernel through 5.4.1 allows local users to cause a denial of service (such as relay blockage) by triggering a NULL alloc_percpu result.
References
| URL | Tags | ||||||||||||||||||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
|||||||||||||||||||||||||||||||||||||||||||||||
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CVE-2020-12770 (GCVE-0-2020-12770)
Vulnerability from cvelistv5
Published
2020-05-09 20:16
Modified
2024-08-04 12:04
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- n/a
Summary
An issue was discovered in the Linux kernel through 5.6.11. sg_write lacks an sg_remove_request call in a certain failure case, aka CID-83c6f2390040.
References
| URL | Tags | |||||||||||||||||||||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
||||||||||||||||||||||||||||||||||||||||||||||||||
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CVE-2020-12768 (GCVE-0-2020-12768)
Vulnerability from cvelistv5
Published
2020-05-09 20:16
Modified
2024-08-04 12:04
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- n/a
Summary
An issue was discovered in the Linux kernel before 5.6. svm_cpu_uninit in arch/x86/kvm/svm.c has a memory leak, aka CID-d80b64ff297e. NOTE: third parties dispute this issue because it's a one-time leak at the boot, the size is negligible, and it can't be triggered at will
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CVE-2019-19039 (GCVE-0-2019-19039)
Vulnerability from cvelistv5
Published
2019-11-21 01:40
Modified
2024-08-05 02:09
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- n/a
Summary
__btrfs_free_extent in fs/btrfs/extent-tree.c in the Linux kernel through 5.3.12 calls btrfs_print_leaf in a certain ENOENT case, which allows local users to obtain potentially sensitive information about register values via the dmesg program. NOTE: The BTRFS development team disputes this issues as not being a vulnerability because “1) The kernel provide facilities to restrict access to dmesg - dmesg_restrict=1 sysctl option. So it's really up to the system administrator to judge whether dmesg access shall be disallowed or not. 2) WARN/WARN_ON are widely used macros in the linux kernel. If this CVE is considered valid this would mean there are literally thousands CVE lurking in the kernel - something which clearly is not the case.
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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.
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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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