SUSE-SU-2021:4038-1

    Dashboard / Vulnerabilities / SUSE-SU-2021:4038-1

    SUSE-SU-2021:4038-1

    Published: 14 Dec 2021Last Modified: 2 May 2025

    Summary: Security update for the Linux Kernel (Live Patch 20 for SLE 15 SP1)

    Details: This update for the Linux Kernel 4.12.14-197_75 fixes several issues. The following security issues were fixed: - CVE-2021-0941: In bpf_skb_change_head of filter.c, there is a possible out of bounds read due to a use after free. This could lead to local escalation of privilege with System execution privileges needed. User interaction is not needed for exploitation (bnc#1192045). - CVE-2021-20322: Make the ipv4 and ipv6 ICMP exception caches less predictive to avoid information leaks about UDP ports in use. (bsc#1191790)

    References: https://www.suse.com/support/update/announcement/2021/suse-su-20214038-1/, https://bugzilla.suse.com/1191813, https://bugzilla.suse.com/1192048, https://www.suse.com/security/cve/CVE-2021-0941, https://www.suse.com/security/cve/CVE-2021-20322

    Affected packages

    Package

    Name: kgraft-patch-SLE12-SP4_Update_22

    Purl: pkg:rpm/suse/kgraft-patch-SLE12-SP4_Update_22&distro=SUSE%20Linux%20Enterprise%20Live%20Patching%2012%20SP4

    Affected ranges

    Type: ECOSYSTEM

    Events:

    Introduced- 0
    Fixed -6-2.1

    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-2021:4038-1 | CVE-DB