SUSE-SU-2021:1248-1

    Dashboard / Vulnerabilities / SUSE-SU-2021:1248-1

    SUSE-SU-2021:1248-1

    Published: 16 Apr 2021Last Modified: 4 Feb 2026

    Summary: Security update for the Linux Kernel

    Details: The SUSE Linux Enterprise 12 SP5 Azure kernel was updated to receive various security and bugfixes. The following security bugs were fixed: - CVE-2020-25670, CVE-2020-25671, CVE-2020-25672, CVE-2020-25673: Fixed multiple bugs in NFC subsytem (bsc#1178181). - CVE-2020-36311: Fixed a denial of service (soft lockup) by triggering destruction of a large SEV VM (bsc#1184511). - CVE-2021-29154: Fixed incorrect computation of branch displacements, allowing arbitrary code execution (bsc#1184391). - CVE-2021-30002: Fixed a memory leak for large arguments in video_usercopy (bsc#1184120). - CVE-2021-3483: Fixed a use-after-free in nosy.c (bsc#1184393). - CVE-2021-20219: Fixed a denial of service in n_tty_receive_char_special (bsc#1184397). The following non-security bugs were fixed: - cifs: do not send close in compound create+close requests (bsc#1181507). - net: sched: disable TCQ_F_NOLOCK for pfifo_fast (bsc#1183405) - powerpc/64s: Fix instruction encoding for lis in ppc_function_entry() (bsc#1065729). - powerpc/pmem: Include pmem prototypes (bsc#1113295 git-fixes). - powerpc/pseries/ras: Remove unused variable 'status' (bsc#1065729). - s390/pci: Fix s390_mmio_read/write with MIO (LTC#192079 bsc#1183755). - vsprintf: Do not have bprintf dereference pointers (bsc#1184494). - vsprintf: Do not preprocess non-dereferenced pointers for bprintf (%px and %pK) (bsc#1184494). - vsprintf: Fix off-by-one bug in bstr_printf() processing dereferenced pointers (bsc#1184494). - x86/mem_encrypt: Correct physical address calculation in __set_clr_pte_enc() (12sp5). - xen/events: fix setting irq affinity (bsc#1184583).

    References: https://www.suse.com/support/update/announcement/2021/suse-su-20211248-1/, https://bugzilla.suse.com/1065729, https://bugzilla.suse.com/1113295, https://bugzilla.suse.com/1178181, https://bugzilla.suse.com/1181507, https://bugzilla.suse.com/1183405, https://bugzilla.suse.com/1183755, https://bugzilla.suse.com/1184120, https://bugzilla.suse.com/1184170, https://bugzilla.suse.com/1184391, https://bugzilla.suse.com/1184393, https://bugzilla.suse.com/1184397, https://bugzilla.suse.com/1184494, https://bugzilla.suse.com/1184511, https://bugzilla.suse.com/1184583, https://www.suse.com/security/cve/CVE-2020-25670, https://www.suse.com/security/cve/CVE-2020-25671, https://www.suse.com/security/cve/CVE-2020-25672, https://www.suse.com/security/cve/CVE-2020-25673, https://www.suse.com/security/cve/CVE-2020-36311, https://www.suse.com/security/cve/CVE-2021-20219, https://www.suse.com/security/cve/CVE-2021-29154, https://www.suse.com/security/cve/CVE-2021-30002, https://www.suse.com/security/cve/CVE-2021-3483

    Affected packages

    Package

    Name: kernel-azure

    Purl: pkg:rpm/suse/kernel-azure&distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP5

    Affected ranges

    Type: ECOSYSTEM

    Events:

    Introduced- 0
    Fixed -4.12.14-16.53.1

    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-2021:1248-1 | CVE-DB