SUSE-SU-2022:2840-1

    Dashboard / Vulnerabilities / SUSE-SU-2022:2840-1

    SUSE-SU-2022:2840-1

    Published: 18 Aug 2022Last Modified: 4 Feb 2026

    Summary: Security update for the Linux Kernel

    Details: The SUSE Linux Enterprise 12 SP3 LTSS kernel was updated to receive various security and bugfixes. The following security bugs were fixed: - CVE-2020-15393: CVE-2020-15393: Fixed a memory leak in usbtest_disconnect (bnc#1173514). - CVE-2020-36557: Fixed race condition between the VT_DISALLOCATE ioctl and closing/opening of ttys that could lead to a use-after-free (bnc#1201429). - CVE-2020-36558: Fixed race condition involving VT_RESIZEX that could lead to a NULL pointer dereference and general protection fault (bnc#1200910). - CVE-2021-33655: Fixed out of bounds write with ioctl FBIOPUT_VSCREENINFO (bnc#1201635). - CVE-2021-33656: Fixed out of bounds write with ioctl PIO_FONT (bnc#1201636). - CVE-2021-39713: Fixed a race condition in the network scheduling subsystem which could lead to a use-after-free. (bnc#1196973) - CVE-2022-1462: Fixed an out-of-bounds read flaw in the TeleTYpe subsystem (bnc#1198829). - CVE-2022-20166: Fixed possible out of bounds write due to sprintf unsafety that could cause local escalation of privilege (bnc#1200598). - CVE-2022-2318: Fixed a use-after-free vulnerabilities in the timer handler in net/rose/rose_timer.c that allow attackers to crash the system without any privileges (bsc#1201251). - CVE-2022-26365, CVE-2022-33740, CVE-2022-33741, CVE-2022-33742: Fixed multiple potential data leaks with Block and Network devices when using untrusted backends (bsc#1200762). - CVE-2022-36946: Fixed incorrect packet truncation in nfqnl_mangle() that could lead to remote DoS (bnc#1201940). The following non-security bugs were fixed: - kvm: emulate: do not adjust size of fastop and setcc subroutines (bsc#1201930). - kvm: emulate: Fix SETcc emulation function offsets with SLS (bsc#1201930).

    References: https://www.suse.com/support/update/announcement/2022/suse-su-20222840-1/, https://bugzilla.suse.com/1173514, https://bugzilla.suse.com/1196973, https://bugzilla.suse.com/1198829, https://bugzilla.suse.com/1200598, https://bugzilla.suse.com/1200762, https://bugzilla.suse.com/1200910, https://bugzilla.suse.com/1201251, https://bugzilla.suse.com/1201429, https://bugzilla.suse.com/1201635, https://bugzilla.suse.com/1201636, https://bugzilla.suse.com/1201930, https://bugzilla.suse.com/1201940, https://www.suse.com/security/cve/CVE-2020-15393, https://www.suse.com/security/cve/CVE-2020-36557, https://www.suse.com/security/cve/CVE-2020-36558, https://www.suse.com/security/cve/CVE-2021-33655, https://www.suse.com/security/cve/CVE-2021-33656, https://www.suse.com/security/cve/CVE-2021-39713, https://www.suse.com/security/cve/CVE-2022-1462, https://www.suse.com/security/cve/CVE-2022-20166, https://www.suse.com/security/cve/CVE-2022-2318, https://www.suse.com/security/cve/CVE-2022-26365, https://www.suse.com/security/cve/CVE-2022-33740, https://www.suse.com/security/cve/CVE-2022-33741, https://www.suse.com/security/cve/CVE-2022-33742, https://www.suse.com/security/cve/CVE-2022-36946

    Affected packages

    Package

    Name: kernel-default

    Purl: pkg:rpm/suse/kernel-default&distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP3-BCL

    Affected ranges

    Type: ECOSYSTEM

    Events:

    Introduced- 0
    Fixed -4.4.180-94.171.1

    Affected versions

    Common Vulnerability Scoring System

    Attack Vector
    Network
    Adjacent
    Local
    Physical
    Privileges Required
    None
    Low
    High
    User Interaction
    None
    Required
    Scope
    Unchanged
    Changed
    Confidentiality
    None
    Low
    High
    Integrity
    None
    Low
    High
    Availability
    None
    Low
    High
    SUSE-SU-2022:2840-1 | CVE-DB