suse-su-2020:14490-1
Vulnerability from csaf_suse
Published
2020-09-15 08:20
Modified
2020-09-15 08:20
Summary
Security update for shim
Notes
Title of the patch
Security update for shim
Description of the patch
This update for shim fixes the following issues:
Update to the unified shim binary from SUSE Linux Enterprise 15-SP1 (bsc#1168994)
This update addresses the 'BootHole' security issue (master CVE CVE-2020-10713), by
disallowing binaries signed by the previous SUSE UEFI signing key from booting.
This update should only be installed after updates of grub2, the Linux kernel and (if used)
Xen from or after July / August 2020 are applied.
Also fixed:
+ shim-install: install MokManager to \EFI\boot to process the pending MOK request (bsc#1175626, bsc#1175656)
Patchnames
slessp4-shim-14490
Terms of use
CSAF 2.0 data is provided by SUSE under the Creative Commons License 4.0 with Attribution (CC-BY-4.0).
{
"document": {
"aggregate_severity": {
"namespace": "https://www.suse.com/support/security/rating/",
"text": "moderate"
},
"category": "csaf_security_advisory",
"csaf_version": "2.0",
"distribution": {
"text": "Copyright 2024 SUSE LLC. All rights reserved.",
"tlp": {
"label": "WHITE",
"url": "https://www.first.org/tlp/"
}
},
"lang": "en",
"notes": [
{
"category": "summary",
"text": "Security update for shim",
"title": "Title of the patch"
},
{
"category": "description",
"text": "This update for shim fixes the following issues:\n\nUpdate to the unified shim binary from SUSE Linux Enterprise 15-SP1 (bsc#1168994)\n\nThis update addresses the \u0027BootHole\u0027 security issue (master CVE CVE-2020-10713), by\ndisallowing binaries signed by the previous SUSE UEFI signing key from booting.\n\nThis update should only be installed after updates of grub2, the Linux kernel and (if used)\nXen from or after July / August 2020 are applied.\n\nAlso fixed:\n\n+ shim-install: install MokManager to \\EFI\\boot to process the pending MOK request (bsc#1175626, bsc#1175656)\n\n",
"title": "Description of the patch"
},
{
"category": "details",
"text": "slessp4-shim-14490",
"title": "Patchnames"
},
{
"category": "legal_disclaimer",
"text": "CSAF 2.0 data is provided by SUSE under the Creative Commons License 4.0 with Attribution (CC-BY-4.0).",
"title": "Terms of use"
}
],
"publisher": {
"category": "vendor",
"contact_details": "https://www.suse.com/support/security/contact/",
"name": "SUSE Product Security Team",
"namespace": "https://www.suse.com/"
},
"references": [
{
"category": "external",
"summary": "SUSE ratings",
"url": "https://www.suse.com/support/security/rating/"
},
{
"category": "self",
"summary": "URL of this CSAF notice",
"url": "https://ftp.suse.com/pub/projects/security/csaf/suse-su-2020_14490-1.json"
},
{
"category": "self",
"summary": "URL for SUSE-SU-2020:14490-1",
"url": "https://www.suse.com/support/update/announcement/2020/suse-su-202014490-1/"
},
{
"category": "self",
"summary": "E-Mail link for SUSE-SU-2020:14490-1",
"url": "https://lists.suse.com/pipermail/sle-security-updates/2020-September/007428.html"
},
{
"category": "self",
"summary": "SUSE Bug 1168994",
"url": "https://bugzilla.suse.com/1168994"
},
{
"category": "self",
"summary": "SUSE Bug 1175626",
"url": "https://bugzilla.suse.com/1175626"
},
{
"category": "self",
"summary": "SUSE Bug 1175656",
"url": "https://bugzilla.suse.com/1175656"
},
{
"category": "self",
"summary": "SUSE CVE CVE-2020-10713 page",
"url": "https://www.suse.com/security/cve/CVE-2020-10713/"
}
],
"title": "Security update for shim",
"tracking": {
"current_release_date": "2020-09-15T08:20:58Z",
"generator": {
"date": "2020-09-15T08:20:58Z",
"engine": {
"name": "cve-database.git:bin/generate-csaf.pl",
"version": "1"
}
},
"id": "SUSE-SU-2020:14490-1",
"initial_release_date": "2020-09-15T08:20:58Z",
"revision_history": [
{
"date": "2020-09-15T08:20:58Z",
"number": "1",
"summary": "Current version"
}
],
"status": "final",
"version": "1"
}
},
"product_tree": {
"branches": [
{
"branches": [
{
"branches": [
{
"category": "product_version",
"name": "shim-15+git47-12.5.1.x86_64",
"product": {
"name": "shim-15+git47-12.5.1.x86_64",
"product_id": "shim-15+git47-12.5.1.x86_64"
}
}
],
"category": "architecture",
"name": "x86_64"
},
{
"branches": [
{
"category": "product_name",
"name": "SUSE Linux Enterprise Server 11 SP4-LTSS",
"product": {
"name": "SUSE Linux Enterprise Server 11 SP4-LTSS",
"product_id": "SUSE Linux Enterprise Server 11 SP4-LTSS",
"product_identification_helper": {
"cpe": "cpe:/o:suse:suse_sles:11:sp4"
}
}
}
],
"category": "product_family",
"name": "SUSE Linux Enterprise"
}
],
"category": "vendor",
"name": "SUSE"
}
],
"relationships": [
{
"category": "default_component_of",
"full_product_name": {
"name": "shim-15+git47-12.5.1.x86_64 as component of SUSE Linux Enterprise Server 11 SP4-LTSS",
"product_id": "SUSE Linux Enterprise Server 11 SP4-LTSS:shim-15+git47-12.5.1.x86_64"
},
"product_reference": "shim-15+git47-12.5.1.x86_64",
"relates_to_product_reference": "SUSE Linux Enterprise Server 11 SP4-LTSS"
}
]
},
"vulnerabilities": [
{
"cve": "CVE-2020-10713",
"ids": [
{
"system_name": "SUSE CVE Page",
"text": "https://www.suse.com/security/cve/CVE-2020-10713"
}
],
"notes": [
{
"category": "general",
"text": "A flaw was found in grub2, prior to version 2.06. An attacker may use the GRUB 2 flaw to hijack and tamper the GRUB verification process. This flaw also allows the bypass of Secure Boot protections. In order to load an untrusted or modified kernel, an attacker would first need to establish access to the system such as gaining physical access, obtain the ability to alter a pxe-boot network, or have remote access to a networked system with root access. With this access, an attacker could then craft a string to cause a buffer overflow by injecting a malicious payload that leads to arbitrary code execution within GRUB. The highest threat from this vulnerability is to data confidentiality and integrity as well as system availability.",
"title": "CVE description"
}
],
"product_status": {
"recommended": [
"SUSE Linux Enterprise Server 11 SP4-LTSS:shim-15+git47-12.5.1.x86_64"
]
},
"references": [
{
"category": "external",
"summary": "CVE-2020-10713",
"url": "https://www.suse.com/security/cve/CVE-2020-10713"
},
{
"category": "external",
"summary": "SUSE Bug 1168994 for CVE-2020-10713",
"url": "https://bugzilla.suse.com/1168994"
},
{
"category": "external",
"summary": "SUSE Bug 1173456 for CVE-2020-10713",
"url": "https://bugzilla.suse.com/1173456"
},
{
"category": "external",
"summary": "SUSE Bug 1173812 for CVE-2020-10713",
"url": "https://bugzilla.suse.com/1173812"
},
{
"category": "external",
"summary": "SUSE Bug 1199353 for CVE-2020-10713",
"url": "https://bugzilla.suse.com/1199353"
}
],
"remediations": [
{
"category": "vendor_fix",
"details": "To install this SUSE Security Update use the SUSE recommended installation methods like YaST online_update or \"zypper patch\".\n",
"product_ids": [
"SUSE Linux Enterprise Server 11 SP4-LTSS:shim-15+git47-12.5.1.x86_64"
]
}
],
"scores": [
{
"cvss_v3": {
"baseScore": 8.2,
"baseSeverity": "HIGH",
"vectorString": "CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H",
"version": "3.1"
},
"products": [
"SUSE Linux Enterprise Server 11 SP4-LTSS:shim-15+git47-12.5.1.x86_64"
]
}
],
"threats": [
{
"category": "impact",
"date": "2020-09-15T08:20:58Z",
"details": "important"
}
],
"title": "CVE-2020-10713"
}
]
}
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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.
- 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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