SUSE-SU-2021:4090-1

    Dashboard / Vulnerabilities / SUSE-SU-2021:4090-1

    SUSE-SU-2021:4090-1

    Published: 14 Dec 2021Last Modified: 4 Feb 2026

    Summary: Security update for the Linux Kernel (Live Patch 10 for SLE 15 SP2)

    Details: This update for the Linux Kernel 5.3.18-24_49 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-20214090-1/, 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: kernel-livepatch-SLE15-SP2_Update_15

    Purl: pkg:rpm/suse/kernel-livepatch-SLE15-SP2_Update_15&distro=SUSE%20Linux%20Enterprise%20Live%20Patching%2015%20SP2

    Affected ranges

    Type: ECOSYSTEM

    Events:

    Introduced- 0
    Fixed -7-2.1

    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-2021:4090-1 | CVE-DB