Vulnerability from csaf_suse
Published
2022-06-10 08:16
Modified
2022-06-10 08:16
Summary
Security update for grub2
Notes
Title of the patch
Security update for grub2
Description of the patch
This update for grub2 fixes the following issues:
This update provides security fixes and hardenings for Boothole 3 / Boothole 2022 (bsc#1198581)
- CVE-2021-3695: Fixed that a crafted PNG grayscale image could lead to out-of-bounds write in heap (bsc#1191184)
- CVE-2021-3696: Fixed that a crafted PNG image could lead to out-of-bound write during huffman table handling (bsc#1191185)
- CVE-2021-3697: Fixed that a crafted JPEG image could lead to buffer underflow write in the heap (bsc#1191186)
- CVE-2022-28733: Fixed fragmentation math in net/ip (bsc#1198460)
- CVE-2022-28734: Fixed an out-of-bound write for split http headers (bsc#1198493)
- CVE-2022-28735: Fixed some verifier framework changes (bsc#1198495)
- CVE-2022-28736: Fixed a use-after-free in chainloader command (bsc#1198496)
- Update SBAT security contact (bsc#1193282)
- Bump grub's SBAT generation to 2
- Use boot disks in OpenFirmware, fixing regression caused when the root LV is completely in the boot LUN (bsc#1197948)
Patchnames
SUSE-2022-2035,SUSE-SLE-Module-Basesystem-15-SP4-2022-2035,SUSE-SLE-Module-SUSE-Manager-Proxy-4.3-2022-2035,SUSE-SLE-Module-Server-Applications-15-SP4-2022-2035,openSUSE-SLE-15.4-2022-2035
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: "important", }, 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 grub2", title: "Title of the patch", }, { category: "description", text: "This update for grub2 fixes the following issues:\n\nThis update provides security fixes and hardenings for Boothole 3 / Boothole 2022 (bsc#1198581)\n\n- CVE-2021-3695: Fixed that a crafted PNG grayscale image could lead to out-of-bounds write in heap (bsc#1191184)\n- CVE-2021-3696: Fixed that a crafted PNG image could lead to out-of-bound write during huffman table handling (bsc#1191185)\n- CVE-2021-3697: Fixed that a crafted JPEG image could lead to buffer underflow write in the heap (bsc#1191186)\n- CVE-2022-28733: Fixed fragmentation math in net/ip (bsc#1198460)\n- CVE-2022-28734: Fixed an out-of-bound write for split http headers (bsc#1198493)\n- CVE-2022-28735: Fixed some verifier framework changes (bsc#1198495)\n- CVE-2022-28736: Fixed a use-after-free in chainloader command (bsc#1198496)\n- Update SBAT security contact (bsc#1193282)\n- Bump grub's SBAT generation to 2\n\n- Use boot disks in OpenFirmware, fixing regression caused when the root LV is completely in the boot LUN (bsc#1197948)\n", title: "Description of the patch", }, { category: "details", text: "SUSE-2022-2035,SUSE-SLE-Module-Basesystem-15-SP4-2022-2035,SUSE-SLE-Module-SUSE-Manager-Proxy-4.3-2022-2035,SUSE-SLE-Module-Server-Applications-15-SP4-2022-2035,openSUSE-SLE-15.4-2022-2035", 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-2022_2035-1.json", }, { category: "self", summary: "URL for SUSE-SU-2022:2035-1", url: "https://www.suse.com/support/update/announcement/2022/suse-su-20222035-1/", }, { category: "self", summary: "E-Mail link for SUSE-SU-2022:2035-1", url: "https://lists.suse.com/pipermail/sle-security-updates/2022-June/011258.html", }, { category: "self", summary: "SUSE Bug 1191184", url: "https://bugzilla.suse.com/1191184", }, { category: "self", summary: "SUSE Bug 1191185", url: "https://bugzilla.suse.com/1191185", }, { category: "self", summary: "SUSE Bug 1191186", url: "https://bugzilla.suse.com/1191186", }, { category: "self", summary: "SUSE Bug 1193282", url: "https://bugzilla.suse.com/1193282", }, { category: "self", summary: "SUSE Bug 1197948", url: "https://bugzilla.suse.com/1197948", }, { category: "self", summary: "SUSE Bug 1198460", url: "https://bugzilla.suse.com/1198460", }, { category: "self", summary: "SUSE Bug 1198493", url: "https://bugzilla.suse.com/1198493", }, { category: "self", summary: "SUSE Bug 1198495", url: "https://bugzilla.suse.com/1198495", }, { category: "self", summary: "SUSE Bug 1198496", url: "https://bugzilla.suse.com/1198496", }, { category: "self", summary: "SUSE Bug 1198581", url: "https://bugzilla.suse.com/1198581", }, { category: "self", summary: "SUSE CVE CVE-2021-3695 page", url: "https://www.suse.com/security/cve/CVE-2021-3695/", }, { category: "self", summary: "SUSE CVE CVE-2021-3696 page", url: "https://www.suse.com/security/cve/CVE-2021-3696/", }, { category: "self", summary: "SUSE CVE CVE-2021-3697 page", url: "https://www.suse.com/security/cve/CVE-2021-3697/", }, { category: "self", summary: "SUSE CVE CVE-2022-28733 page", url: "https://www.suse.com/security/cve/CVE-2022-28733/", }, { category: "self", summary: "SUSE CVE CVE-2022-28734 page", url: "https://www.suse.com/security/cve/CVE-2022-28734/", }, { category: "self", summary: "SUSE CVE CVE-2022-28735 page", url: "https://www.suse.com/security/cve/CVE-2022-28735/", }, { category: "self", summary: "SUSE CVE CVE-2022-28736 page", url: "https://www.suse.com/security/cve/CVE-2022-28736/", }, ], title: "Security update for grub2", tracking: { current_release_date: "2022-06-10T08:16:51Z", generator: { date: "2022-06-10T08:16:51Z", engine: { name: "cve-database.git:bin/generate-csaf.pl", version: "1", }, }, id: "SUSE-SU-2022:2035-1", initial_release_date: "2022-06-10T08:16:51Z", revision_history: [ { date: "2022-06-10T08:16:51Z", number: "1", summary: "Current version", }, ], status: "final", version: "1", }, }, product_tree: { branches: [ { branches: [ { branches: [ { category: "product_version", name: "grub2-2.06-150400.11.5.2.aarch64", product: { name: "grub2-2.06-150400.11.5.2.aarch64", product_id: "grub2-2.06-150400.11.5.2.aarch64", }, }, { category: "product_version", name: 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An attacker may take advantage of that to cause heap data corruption or eventually arbitrary code execution and circumvent secure boot protections. This issue has a high complexity to be exploited as an attacker needs to perform some triage over the heap layout to achieve signifcant results, also the values written into the memory are repeated three times in a row making difficult to produce valid payloads. This flaw affects grub2 versions prior grub-2.12.", title: "CVE description", }, ], product_status: { recommended: [ "SUSE Linux Enterprise Module for Basesystem 15 SP4:grub2-2.06-150400.11.5.2.aarch64", "SUSE Linux Enterprise Module for Basesystem 15 SP4:grub2-2.06-150400.11.5.2.ppc64le", "SUSE Linux Enterprise Module for Basesystem 15 SP4:grub2-2.06-150400.11.5.2.s390x", "SUSE Linux Enterprise Module for Basesystem 15 SP4:grub2-2.06-150400.11.5.2.x86_64", "SUSE Linux Enterprise Module for Basesystem 15 SP4:grub2-arm64-efi-2.06-150400.11.5.2.noarch", "SUSE Linux Enterprise Module for Basesystem 15 SP4:grub2-i386-pc-2.06-150400.11.5.2.noarch", "SUSE Linux Enterprise Module for Basesystem 15 SP4:grub2-powerpc-ieee1275-2.06-150400.11.5.2.noarch", "SUSE Linux Enterprise Module for Basesystem 15 SP4:grub2-s390x-emu-2.06-150400.11.5.2.s390x", "SUSE Linux Enterprise Module for Basesystem 15 SP4:grub2-snapper-plugin-2.06-150400.11.5.2.noarch", "SUSE Linux Enterprise Module for Basesystem 15 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category: "impact", date: "2022-06-10T08:16:51Z", details: "important", }, ], title: "CVE-2021-3695", }, { cve: "CVE-2021-3696", ids: [ { system_name: "SUSE CVE Page", text: "https://www.suse.com/security/cve/CVE-2021-3696", }, ], notes: [ { category: "general", text: "A heap out-of-bounds write may heppen during the handling of Huffman tables in the PNG reader. This may lead to data corruption in the heap space. Confidentiality, Integrity and Availablity impact may be considered Low as it's very complex to an attacker control the encoding and positioning of corrupted Huffman entries to achieve results such as arbitrary code execution and/or secure boot circumvention. This flaw affects grub2 versions prior grub-2.12.", title: "CVE description", }, ], product_status: { recommended: [ "SUSE Linux Enterprise Module for Basesystem 15 SP4:grub2-2.06-150400.11.5.2.aarch64", "SUSE Linux Enterprise Module for Basesystem 15 SP4:grub2-2.06-150400.11.5.2.ppc64le", "SUSE Linux Enterprise Module for Basesystem 15 SP4:grub2-2.06-150400.11.5.2.s390x", "SUSE Linux Enterprise Module for Basesystem 15 SP4:grub2-2.06-150400.11.5.2.x86_64", "SUSE Linux Enterprise Module for Basesystem 15 SP4:grub2-arm64-efi-2.06-150400.11.5.2.noarch", "SUSE Linux Enterprise Module for Basesystem 15 SP4:grub2-i386-pc-2.06-150400.11.5.2.noarch", "SUSE Linux Enterprise Module for Basesystem 15 SP4:grub2-powerpc-ieee1275-2.06-150400.11.5.2.noarch", "SUSE Linux Enterprise Module for Basesystem 15 SP4:grub2-s390x-emu-2.06-150400.11.5.2.s390x", "SUSE Linux Enterprise Module for Basesystem 15 SP4:grub2-snapper-plugin-2.06-150400.11.5.2.noarch", "SUSE Linux Enterprise Module for Basesystem 15 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{ category: "general", text: "A crafted JPEG image may lead the JPEG reader to underflow its data pointer, allowing user-controlled data to be written in heap. To a successful to be performed the attacker needs to perform some triage over the heap layout and craft an image with a malicious format and payload. This vulnerability can lead to data corruption and eventual code execution or secure boot circumvention. This flaw affects grub2 versions prior grub-2.12.", title: "CVE description", }, ], product_status: { recommended: [ "SUSE Linux Enterprise Module for Basesystem 15 SP4:grub2-2.06-150400.11.5.2.aarch64", "SUSE Linux Enterprise Module for Basesystem 15 SP4:grub2-2.06-150400.11.5.2.ppc64le", "SUSE Linux Enterprise Module for Basesystem 15 SP4:grub2-2.06-150400.11.5.2.s390x", "SUSE Linux Enterprise Module for Basesystem 15 SP4:grub2-2.06-150400.11.5.2.x86_64", "SUSE Linux Enterprise Module for Basesystem 15 SP4:grub2-arm64-efi-2.06-150400.11.5.2.noarch", "SUSE Linux Enterprise Module for Basesystem 15 SP4:grub2-i386-pc-2.06-150400.11.5.2.noarch", "SUSE Linux Enterprise Module for Basesystem 15 SP4:grub2-powerpc-ieee1275-2.06-150400.11.5.2.noarch", "SUSE Linux Enterprise Module for Basesystem 15 SP4:grub2-s390x-emu-2.06-150400.11.5.2.s390x", "SUSE Linux Enterprise Module for Basesystem 15 SP4:grub2-snapper-plugin-2.06-150400.11.5.2.noarch", "SUSE Linux Enterprise Module for Basesystem 15 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"CVE-2021-3697", }, { cve: "CVE-2022-28733", ids: [ { system_name: "SUSE CVE Page", text: "https://www.suse.com/security/cve/CVE-2022-28733", }, ], notes: [ { category: "general", text: "Integer underflow in grub_net_recv_ip4_packets; A malicious crafted IP packet can lead to an integer underflow in grub_net_recv_ip4_packets() function on rsm->total_len value. Under certain circumstances the total_len value may end up wrapping around to a small integer number which will be used in memory allocation. If the attack succeeds in such way, subsequent operations can write past the end of the buffer.", title: "CVE description", }, ], product_status: { recommended: [ "SUSE Linux Enterprise Module for Basesystem 15 SP4:grub2-2.06-150400.11.5.2.aarch64", "SUSE Linux Enterprise Module for Basesystem 15 SP4:grub2-2.06-150400.11.5.2.ppc64le", "SUSE Linux Enterprise Module for Basesystem 15 SP4:grub2-2.06-150400.11.5.2.s390x", "SUSE Linux Enterprise Module for Basesystem 15 SP4:grub2-2.06-150400.11.5.2.x86_64", "SUSE Linux Enterprise Module for Basesystem 15 SP4:grub2-arm64-efi-2.06-150400.11.5.2.noarch", "SUSE Linux Enterprise Module for Basesystem 15 SP4:grub2-i386-pc-2.06-150400.11.5.2.noarch", "SUSE Linux Enterprise Module for Basesystem 15 SP4:grub2-powerpc-ieee1275-2.06-150400.11.5.2.noarch", "SUSE Linux Enterprise Module for Basesystem 15 SP4:grub2-s390x-emu-2.06-150400.11.5.2.s390x", "SUSE Linux Enterprise Module for Basesystem 15 SP4:grub2-snapper-plugin-2.06-150400.11.5.2.noarch", 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This can lead to a out-of-bound write further when parsing the HTTP request, writing a NULL byte past the buffer. 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Allowing such files to be loaded may lead to unverified code and modules to be loaded in GRUB2 breaking the secure boot trust-chain.", title: "CVE description", }, ], product_status: { recommended: [ "SUSE Linux Enterprise Module for Basesystem 15 SP4:grub2-2.06-150400.11.5.2.aarch64", "SUSE Linux Enterprise Module for Basesystem 15 SP4:grub2-2.06-150400.11.5.2.ppc64le", "SUSE Linux Enterprise Module for Basesystem 15 SP4:grub2-2.06-150400.11.5.2.s390x", "SUSE Linux Enterprise Module for Basesystem 15 SP4:grub2-2.06-150400.11.5.2.x86_64", "SUSE Linux Enterprise Module for Basesystem 15 SP4:grub2-arm64-efi-2.06-150400.11.5.2.noarch", "SUSE Linux Enterprise Module for Basesystem 15 SP4:grub2-i386-pc-2.06-150400.11.5.2.noarch", "SUSE Linux Enterprise Module for Basesystem 15 SP4:grub2-powerpc-ieee1275-2.06-150400.11.5.2.noarch", "SUSE Linux Enterprise Module for Basesystem 15 SP4:grub2-s390x-emu-2.06-150400.11.5.2.s390x", "SUSE Linux Enterprise Module for Basesystem 15 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"CVE-2022-28735", }, { cve: "CVE-2022-28736", ids: [ { system_name: "SUSE CVE Page", text: "https://www.suse.com/security/cve/CVE-2022-28736", }, ], notes: [ { category: "general", text: "There's a use-after-free vulnerability in grub_cmd_chainloader() function; The chainloader command is used to boot up operating systems that doesn't support multiboot and do not have direct support from GRUB2. When executing chainloader more than once a use-after-free vulnerability is triggered. If an attacker can control the GRUB2's memory allocation pattern sensitive data may be exposed and arbitrary code execution can be achieved.", title: "CVE description", }, ], product_status: { recommended: [ "SUSE Linux Enterprise Module for Basesystem 15 SP4:grub2-2.06-150400.11.5.2.aarch64", "SUSE Linux Enterprise Module for Basesystem 15 SP4:grub2-2.06-150400.11.5.2.ppc64le", "SUSE Linux Enterprise Module for Basesystem 15 SP4:grub2-2.06-150400.11.5.2.s390x", "SUSE Linux Enterprise Module for Basesystem 15 SP4:grub2-2.06-150400.11.5.2.x86_64", "SUSE Linux Enterprise Module for Basesystem 15 SP4:grub2-arm64-efi-2.06-150400.11.5.2.noarch", "SUSE Linux Enterprise Module for Basesystem 15 SP4:grub2-i386-pc-2.06-150400.11.5.2.noarch", "SUSE Linux Enterprise Module for Basesystem 15 SP4:grub2-powerpc-ieee1275-2.06-150400.11.5.2.noarch", "SUSE Linux Enterprise Module for Basesystem 15 SP4:grub2-s390x-emu-2.06-150400.11.5.2.s390x", "SUSE Linux Enterprise Module for Basesystem 15 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"https://www.suse.com/security/cve/CVE-2022-28736", }, { category: "external", summary: "SUSE Bug 1198496 for CVE-2022-28736", url: "https://bugzilla.suse.com/1198496", }, { category: "external", summary: "SUSE Bug 1203445 for CVE-2022-28736", url: "https://bugzilla.suse.com/1203445", }, { category: "external", summary: "SUSE Bug 1205057 for CVE-2022-28736", url: "https://bugzilla.suse.com/1205057", }, ], 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 Module for Basesystem 15 SP4:grub2-2.06-150400.11.5.2.aarch64", "SUSE Linux Enterprise Module for Basesystem 15 SP4:grub2-2.06-150400.11.5.2.ppc64le", "SUSE Linux Enterprise Module for Basesystem 15 SP4:grub2-2.06-150400.11.5.2.s390x", "SUSE Linux Enterprise Module for Basesystem 15 SP4:grub2-2.06-150400.11.5.2.x86_64", "SUSE Linux Enterprise Module for Basesystem 15 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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.