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SUSE alert SUSE-SU-2023:3324-1 (kernel)



From:
              sle-security-updates@lists.suse.com


To:
              sle-security-updates@lists.suse.com


Subject:
              SUSE-SU-2023:3324-1: important: Security update for the Linux Kernel


Date:
              Wed, 16 Aug 2023 08:31:38 -0000


Message-ID:
              <169217469887.24047.5845415250547595951@smelt2.suse.de>




# Security update for the Linux Kernel

Announcement ID: SUSE-SU-2023:3324-1  
Rating: important  
References:

  * #1087082
  * #1126703
  * #1206418
  * #1207561
  * #1209779
  * #1210584
  * #1211738
  * #1211867
  * #1212502
  * #1213059
  * #1213167
  * #1213251
  * #1213286
  * #1213287
  * #1213585
  * #1213588

  
Cross-References:

  * CVE-2018-20784
  * CVE-2018-3639
  * CVE-2022-40982
  * CVE-2023-0459
  * CVE-2023-1637
  * CVE-2023-20569
  * CVE-2023-20593
  * CVE-2023-2985
  * CVE-2023-3106
  * CVE-2023-3268
  * CVE-2023-35001
  * CVE-2023-3567
  * CVE-2023-3611
  * CVE-2023-3776

  
CVSS scores:

  * CVE-2018-20784 ( SUSE ):  5.9 CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H
  * CVE-2018-20784 ( NVD ):  9.8 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
  * CVE-2018-20784 ( NVD ):  9.8 CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
  * CVE-2018-3639 ( SUSE ):  4.3 CVSS:3.0/AV:L/AC:L/PR:N/UI:N/S:C/C:L/I:N/A:N
  * CVE-2018-3639 ( NVD ):  5.5 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
  * CVE-2018-3639 ( NVD ):  5.5 CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
  * CVE-2022-40982 ( SUSE ):  6.2 CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
  * CVE-2022-40982 ( NVD ):  6.5 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N
  * CVE-2023-0459 ( SUSE ):  4.7 CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N
  * CVE-2023-0459 ( NVD ):  6.5 CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
  * CVE-2023-1637 ( SUSE ):  4.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:L/I:L/A:L
  * CVE-2023-1637 ( NVD ):  5.5 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
  * CVE-2023-20569 ( SUSE ):  5.6 CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:C/C:H/I:N/A:N
  * CVE-2023-20593 ( SUSE ):  6.2 CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
  * CVE-2023-20593 ( NVD ):  5.5 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
  * CVE-2023-2985 ( SUSE ):  6.4 CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:H
  * CVE-2023-2985 ( NVD ):  5.5 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
  * CVE-2023-3106 ( SUSE ):  6.6 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:H
  * CVE-2023-3106 ( NVD ):  6.6 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:H
  * CVE-2023-3268 ( SUSE ):  6.1 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:L
  * CVE-2023-3268 ( NVD ):  7.1 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H
  * CVE-2023-35001 ( SUSE ):  7.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
  * CVE-2023-35001 ( NVD ):  7.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
  * CVE-2023-3567 ( SUSE ):  7.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
  * CVE-2023-3567 ( NVD ):  6.7 CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
  * CVE-2023-3611 ( SUSE ):  6.7 CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
  * CVE-2023-3611 ( NVD ):  7.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
  * CVE-2023-3776 ( SUSE ):  6.7 CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
  * CVE-2023-3776 ( NVD ):  7.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

  
Affected Products:

  * SUSE Linux Enterprise High Performance Computing 12 SP2
  * SUSE Linux Enterprise Server 12 SP2
  * SUSE Linux Enterprise Server 12 SP2 BCL 12-SP2

  
  
An update that solves 14 vulnerabilities and has two fixes can now be installed.

## Description:

The SUSE Linux Enterprise 12 SP2 kernel was updated to receive various security
and bugfixes.

The following security bugs were fixed:

  * CVE-2018-20784: Fixed a denial of service (infinite loop in
    update_blocked_averages) by mishandled leaf cfs_rq in kernel/sched/fair.c
    (bsc#1126703).
  * CVE-2018-3639: Fixed Speculative Store Bypass aka "Memory Disambiguation"
    (bsc#1087082).
  * CVE-2022-40982: Fixed transient execution attack called "Gather Data
    Sampling" (bsc#1206418).
  * CVE-2023-0459: Fixed information leak in __uaccess_begin_nospec
    (bsc#1211738).
  * CVE-2023-1637: Fixed vulnerability that could lead to unauthorized access to
    CPU memory after resuming CPU from suspend-to-RAM (bsc#1209779).
  * CVE-2023-20569: Fixed side channel attack ‘Inception’ or ‘RAS Poisoning’
    (bsc#1213287).
  * CVE-2023-20593: Fixed a ZenBleed issue in "Zen 2" CPUs that could allow an
    attacker to potentially access sensitive information (bsc#1213286).
  * CVE-2023-2985: Fixed an use-after-free vulnerability in hfsplus_put_super in
    fs/hfsplus/super.c that could allow a local user to cause a denial of
    service (bsc#1211867).
  * CVE-2023-3106: Fixed crash in XFRM_MSG_GETSA netlink handler (bsc#1213251).
  * CVE-2023-3268: Fixed an out of bounds memory access flaw in
    relay_file_read_start_pos in the relayfs (bsc#1212502).
  * CVE-2023-35001: Fixed an out-of-bounds memory access flaw in nft_byteorder
    that could allow a local attacker to escalate their privilege (bsc#1213059).
  * CVE-2023-3567: Fixed a use-after-free in vcs_read in
    drivers/tty/vt/vc_screen.c (bsc#1213167).
  * CVE-2023-3611: Fixed an out-of-bounds write in net/sched
    sch_qfq(bsc#1213585).
  * CVE-2023-3776: Fixed improper refcount update in cls_fw leads to use-after-
    free (bsc#1213588).

The following non-security bugs were fixed:

  * net/sched: sch_qfq: refactor parsing of netlink parameters (bsc#1213585).
  * ubi: Fix failure attaching when vid_hdr offset equals to (sub)page size
    (bsc#1210584).
  * ubi: ensure that VID header offset + VID header size &lt;= alloc, size
    (bsc#1210584).
  * x86: Treat R_X86_64_PLT32 as R_X86_64_PC32 (git-fixes) No it's not git-fixes
    it's used to make sle12-sp2 compile with newer toolchain to make the life of
    all the poor souls maintaining this ancient kernel on their modern machines,
    a little bit easier....

## Special Instructions and Notes:

  * Please reboot the system after installing this update.

## Patch Instructions:

To install this SUSE Important update use the SUSE recommended installation
methods like YaST online_update or "zypper patch".  
Alternatively you can run the command listed for your product:

  * SUSE Linux Enterprise Server 12 SP2 BCL 12-SP2  
    zypper in -t patch SUSE-SLE-SERVER-12-SP2-BCL-2023-3324=1

## Package List:

  * SUSE Linux Enterprise Server 12 SP2 BCL 12-SP2 (nosrc x86_64)
    * kernel-default-4.4.121-92.208.1
  * SUSE Linux Enterprise Server 12 SP2 BCL 12-SP2 (x86_64)
    * kernel-default-base-debuginfo-4.4.121-92.208.1
    * kernel-syms-4.4.121-92.208.1
    * kernel-default-base-4.4.121-92.208.1
    * kernel-default-debuginfo-4.4.121-92.208.1
    * kernel-default-debugsource-4.4.121-92.208.1
    * kernel-default-devel-4.4.121-92.208.1
  * SUSE Linux Enterprise Server 12 SP2 BCL 12-SP2 (noarch)
    * kernel-source-4.4.121-92.208.1
    * kernel-devel-4.4.121-92.208.1
    * kernel-macros-4.4.121-92.208.1

## References:

  * https://www.suse.com/security/cve/CVE-2018-20784.html
  * https://www.suse.com/security/cve/CVE-2018-3639.html
  * https://www.suse.com/security/cve/CVE-2022-40982.html
  * https://www.suse.com/security/cve/CVE-2023-0459.html
  * https://www.suse.com/security/cve/CVE-2023-1637.html
  * https://www.suse.com/security/cve/CVE-2023-20569.html
  * https://www.suse.com/security/cve/CVE-2023-20593.html
  * https://www.suse.com/security/cve/CVE-2023-2985.html
  * https://www.suse.com/security/cve/CVE-2023-3106.html
  * https://www.suse.com/security/cve/CVE-2023-3268.html
  * https://www.suse.com/security/cve/CVE-2023-35001.html
  * https://www.suse.com/security/cve/CVE-2023-3567.html
  * https://www.suse.com/security/cve/CVE-2023-3611.html
  * https://www.suse.com/security/cve/CVE-2023-3776.html
  * https://bugzilla.suse.com/show_bug.cgi?id=1087082
  * https://bugzilla.suse.com/show_bug.cgi?id=1126703
  * https://bugzilla.suse.com/show_bug.cgi?id=1206418
  * https://bugzilla.suse.com/show_bug.cgi?id=1207561
  * https://bugzilla.suse.com/show_bug.cgi?id=1209779
  * https://bugzilla.suse.com/show_bug.cgi?id=1210584
  * https://bugzilla.suse.com/show_bug.cgi?id=1211738
  * https://bugzilla.suse.com/show_bug.cgi?id=1211867
  * https://bugzilla.suse.com/show_bug.cgi?id=1212502
  * https://bugzilla.suse.com/show_bug.cgi?id=1213059
  * https://bugzilla.suse.com/show_bug.cgi?id=1213167
  * https://bugzilla.suse.com/show_bug.cgi?id=1213251
  * https://bugzilla.suse.com/show_bug.cgi?id=1213286
  * https://bugzilla.suse.com/show_bug.cgi?id=1213287
  * https://bugzilla.suse.com/show_bug.cgi?id=1213585
  * https://bugzilla.suse.com/show_bug.cgi?id=1213588
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