Vulnerability from csaf_suse
Published
2023-03-30 11:13
Modified
2023-03-30 11:13
Summary
Security update for grub2

Notes

Title of the patch
Security update for grub2
Description of the patch
This security update of grub2 fixes the following issues: - CVE-2022-2601: Fixed buffer overflow in grub_font_construct_glyph (bsc#1205178). - CVE-2022-3775: Fixed integer underflow in blit_comb() (bsc#1205182). - Bump upstream SBAT generation to 3 - rebuild the package with the new secure boot key (bsc#1209188). Other: - Remove zfs modules (bsc#1205554) - Make grub.cfg invariant to efi and legacy platforms (bsc#1205200)
Patchnames
SUSE-2023-1701,SUSE-SUSE-MicroOS-5.1-2023-1701
Terms of use
CSAF 2.0 data is provided by SUSE under the Creative Commons License 4.0 with Attribution (CC-BY-4.0).


To clipboard 

{
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         text: "important",
      },
      category: "csaf_security_advisory",
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      notes: [
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            category: "summary",
            text: "Security update for grub2",
            title: "Title of the patch",
         },
         {
            category: "description",
            text: "\nThis security update of grub2 fixes the following issues:\n\n- CVE-2022-2601: Fixed buffer overflow in grub_font_construct_glyph (bsc#1205178).\n- CVE-2022-3775: Fixed integer underflow in blit_comb() (bsc#1205182).\n- Bump upstream SBAT generation to 3\n\n- rebuild the package with the new secure boot key (bsc#1209188).\n\nOther:\n\n- Remove zfs modules (bsc#1205554)\n- Make grub.cfg invariant to efi and legacy platforms (bsc#1205200)\n",
            title: "Description of the patch",
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         },
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            title: "Terms of use",
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      ],
      publisher: {
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         contact_details: "https://www.suse.com/support/security/contact/",
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         },
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            url: "https://bugzilla.suse.com/1205182",
         },
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            category: "self",
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            url: "https://bugzilla.suse.com/1205200",
         },
         {
            category: "self",
            summary: "SUSE Bug 1205554",
            url: "https://bugzilla.suse.com/1205554",
         },
         {
            category: "self",
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         },
         {
            category: "self",
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         {
            category: "self",
            summary: "SUSE CVE CVE-2022-3775 page",
            url: "https://www.suse.com/security/cve/CVE-2022-3775/",
         },
      ],
      title: "Security update for grub2",
      tracking: {
         current_release_date: "2023-03-30T11:13:54Z",
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   },
   vulnerabilities: [
      {
         cve: "CVE-2022-2601",
         ids: [
            {
               system_name: "SUSE CVE Page",
               text: "https://www.suse.com/security/cve/CVE-2022-2601",
            },
         ],
         notes: [
            {
               category: "general",
               text: "A buffer overflow was found in grub_font_construct_glyph(). A malicious crafted pf2 font can lead to an overflow when calculating the max_glyph_size value, allocating a smaller than needed buffer for the glyph, this further leads to a buffer overflow and a heap based out-of-bounds write. An attacker may use this vulnerability to circumvent the secure boot mechanism.",
               title: "CVE description",
            },
         ],
         product_status: {
            recommended: [
               "SUSE Linux Enterprise Micro 5.1:grub2-2.04-150300.3.8.1.aarch64",
               "SUSE Linux Enterprise Micro 5.1:grub2-2.04-150300.3.8.1.s390x",
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            ],
         },
         references: [
            {
               category: "external",
               summary: "CVE-2022-2601",
               url: "https://www.suse.com/security/cve/CVE-2022-2601",
            },
            {
               category: "external",
               summary: "SUSE Bug 1205178 for CVE-2022-2601",
               url: "https://bugzilla.suse.com/1205178",
            },
         ],
         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 Micro 5.1:grub2-2.04-150300.3.8.1.aarch64",
                  "SUSE Linux Enterprise Micro 5.1:grub2-2.04-150300.3.8.1.s390x",
                  "SUSE Linux Enterprise Micro 5.1:grub2-2.04-150300.3.8.1.x86_64",
                  "SUSE Linux Enterprise Micro 5.1:grub2-arm64-efi-2.04-150300.3.8.1.noarch",
                  "SUSE Linux Enterprise Micro 5.1:grub2-i386-pc-2.04-150300.3.8.1.noarch",
                  "SUSE Linux Enterprise Micro 5.1:grub2-s390x-emu-2.04-150300.3.8.1.s390x",
                  "SUSE Linux Enterprise Micro 5.1:grub2-snapper-plugin-2.04-150300.3.8.1.noarch",
                  "SUSE Linux Enterprise Micro 5.1:grub2-x86_64-efi-2.04-150300.3.8.1.noarch",
                  "SUSE Linux Enterprise Micro 5.1:grub2-x86_64-xen-2.04-150300.3.8.1.noarch",
               ],
            },
         ],
         scores: [
            {
               cvss_v3: {
                  baseScore: 6.4,
                  baseSeverity: "MEDIUM",
                  vectorString: "CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:H",
                  version: "3.1",
               },
               products: [
                  "SUSE Linux Enterprise Micro 5.1:grub2-2.04-150300.3.8.1.aarch64",
                  "SUSE Linux Enterprise Micro 5.1:grub2-2.04-150300.3.8.1.s390x",
                  "SUSE Linux Enterprise Micro 5.1:grub2-2.04-150300.3.8.1.x86_64",
                  "SUSE Linux Enterprise Micro 5.1:grub2-arm64-efi-2.04-150300.3.8.1.noarch",
                  "SUSE Linux Enterprise Micro 5.1:grub2-i386-pc-2.04-150300.3.8.1.noarch",
                  "SUSE Linux Enterprise Micro 5.1:grub2-s390x-emu-2.04-150300.3.8.1.s390x",
                  "SUSE Linux Enterprise Micro 5.1:grub2-snapper-plugin-2.04-150300.3.8.1.noarch",
                  "SUSE Linux Enterprise Micro 5.1:grub2-x86_64-efi-2.04-150300.3.8.1.noarch",
                  "SUSE Linux Enterprise Micro 5.1:grub2-x86_64-xen-2.04-150300.3.8.1.noarch",
               ],
            },
         ],
         threats: [
            {
               category: "impact",
               date: "2023-03-30T11:13:54Z",
               details: "moderate",
            },
         ],
         title: "CVE-2022-2601",
      },
      {
         cve: "CVE-2022-3775",
         ids: [
            {
               system_name: "SUSE CVE Page",
               text: "https://www.suse.com/security/cve/CVE-2022-3775",
            },
         ],
         notes: [
            {
               category: "general",
               text: "When rendering certain unicode sequences, grub2's font code doesn't proper validate if the informed glyph's width and height is constrained within bitmap size. As consequence an attacker can craft an input which will lead to a out-of-bounds write into grub2's heap, leading to memory corruption and availability issues. Although complex, arbitrary code execution could not be discarded.",
               title: "CVE description",
            },
         ],
         product_status: {
            recommended: [
               "SUSE Linux Enterprise Micro 5.1:grub2-2.04-150300.3.8.1.aarch64",
               "SUSE Linux Enterprise Micro 5.1:grub2-2.04-150300.3.8.1.s390x",
               "SUSE Linux Enterprise Micro 5.1:grub2-2.04-150300.3.8.1.x86_64",
               "SUSE Linux Enterprise Micro 5.1:grub2-arm64-efi-2.04-150300.3.8.1.noarch",
               "SUSE Linux Enterprise Micro 5.1:grub2-i386-pc-2.04-150300.3.8.1.noarch",
               "SUSE Linux Enterprise Micro 5.1:grub2-s390x-emu-2.04-150300.3.8.1.s390x",
               "SUSE Linux Enterprise Micro 5.1:grub2-snapper-plugin-2.04-150300.3.8.1.noarch",
               "SUSE Linux Enterprise Micro 5.1:grub2-x86_64-efi-2.04-150300.3.8.1.noarch",
               "SUSE Linux Enterprise Micro 5.1:grub2-x86_64-xen-2.04-150300.3.8.1.noarch",
            ],
         },
         references: [
            {
               category: "external",
               summary: "CVE-2022-3775",
               url: "https://www.suse.com/security/cve/CVE-2022-3775",
            },
            {
               category: "external",
               summary: "SUSE Bug 1205182 for CVE-2022-3775",
               url: "https://bugzilla.suse.com/1205182",
            },
         ],
         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 Micro 5.1:grub2-2.04-150300.3.8.1.aarch64",
                  "SUSE Linux Enterprise Micro 5.1:grub2-2.04-150300.3.8.1.s390x",
                  "SUSE Linux Enterprise Micro 5.1:grub2-2.04-150300.3.8.1.x86_64",
                  "SUSE Linux Enterprise Micro 5.1:grub2-arm64-efi-2.04-150300.3.8.1.noarch",
                  "SUSE Linux Enterprise Micro 5.1:grub2-i386-pc-2.04-150300.3.8.1.noarch",
                  "SUSE Linux Enterprise Micro 5.1:grub2-s390x-emu-2.04-150300.3.8.1.s390x",
                  "SUSE Linux Enterprise Micro 5.1:grub2-snapper-plugin-2.04-150300.3.8.1.noarch",
                  "SUSE Linux Enterprise Micro 5.1:grub2-x86_64-efi-2.04-150300.3.8.1.noarch",
                  "SUSE Linux Enterprise Micro 5.1:grub2-x86_64-xen-2.04-150300.3.8.1.noarch",
               ],
            },
         ],
         scores: [
            {
               cvss_v3: {
                  baseScore: 6.4,
                  baseSeverity: "MEDIUM",
                  vectorString: "CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:H",
                  version: "3.1",
               },
               products: [
                  "SUSE Linux Enterprise Micro 5.1:grub2-2.04-150300.3.8.1.aarch64",
                  "SUSE Linux Enterprise Micro 5.1:grub2-2.04-150300.3.8.1.s390x",
                  "SUSE Linux Enterprise Micro 5.1:grub2-2.04-150300.3.8.1.x86_64",
                  "SUSE Linux Enterprise Micro 5.1:grub2-arm64-efi-2.04-150300.3.8.1.noarch",
                  "SUSE Linux Enterprise Micro 5.1:grub2-i386-pc-2.04-150300.3.8.1.noarch",
                  "SUSE Linux Enterprise Micro 5.1:grub2-s390x-emu-2.04-150300.3.8.1.s390x",
                  "SUSE Linux Enterprise Micro 5.1:grub2-snapper-plugin-2.04-150300.3.8.1.noarch",
                  "SUSE Linux Enterprise Micro 5.1:grub2-x86_64-efi-2.04-150300.3.8.1.noarch",
                  "SUSE Linux Enterprise Micro 5.1:grub2-x86_64-xen-2.04-150300.3.8.1.noarch",
               ],
            },
         ],
         threats: [
            {
               category: "impact",
               date: "2023-03-30T11:13:54Z",
               details: "moderate",
            },
         ],
         title: "CVE-2022-3775",
      },
   ],
}


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Security Advisory comment format.

This schema specifies the format of a comment related to a security advisory.

UUIDv4 of the comment
UUIDv4 of the Vulnerability-Lookup instance
When the comment was created originally
When the comment was last updated
Title of the comment
Description of the comment
The identifier of the vulnerability (CVE ID, GHSA-ID, PYSEC ID, etc.).



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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.