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suseSuseSUSE-SU-2022:2064-1
HistoryJun 13, 2022 - 12:00 a.m.

Security update for grub2 (important)

2022-06-1300:00:00
lists.opensuse.org
15

7 High

CVSS3

Attack Vector

LOCAL

Attack Complexity

HIGH

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H

6.9 Medium

CVSS2

Access Vector

LOCAL

Access Complexity

MEDIUM

Authentication

NONE

Confidentiality Impact

COMPLETE

Integrity Impact

COMPLETE

Availability Impact

COMPLETE

AV:L/AC:M/Au:N/C:C/I:C/A:C

An update that solves 7 vulnerabilities and has three fixes
is now available.

Description:

This update for grub2 fixes the following issues:

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)

Patch Instructions:

To install this SUSE Security Update use the SUSE recommended installation methods
like YaST online_update or “zypper patch”.

Alternatively you can run the command listed for your product:

  • openSUSE Leap 15.3:

    zypper in -t patch openSUSE-SLE-15.3-2022-2064=1

  • SUSE Linux Enterprise Module for Server Applications 15-SP3:

    zypper in -t patch SUSE-SLE-Module-Server-Applications-15-SP3-2022-2064=1

  • SUSE Linux Enterprise Module for SUSE Manager Proxy 4.2:

    zypper in -t patch SUSE-SLE-Module-SUSE-Manager-Proxy-4.2-2022-2064=1

  • SUSE Linux Enterprise Module for Basesystem 15-SP3:

    zypper in -t patch SUSE-SLE-Module-Basesystem-15-SP3-2022-2064=1

  • SUSE Linux Enterprise Micro 5.2:

    zypper in -t patch SUSE-SUSE-MicroOS-5.2-2022-2064=1

Rows per page:
1-10 of 251

7 High

CVSS3

Attack Vector

LOCAL

Attack Complexity

HIGH

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H

6.9 Medium

CVSS2

Access Vector

LOCAL

Access Complexity

MEDIUM

Authentication

NONE

Confidentiality Impact

COMPLETE

Integrity Impact

COMPLETE

Availability Impact

COMPLETE

AV:L/AC:M/Au:N/C:C/I:C/A:C

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