SUSE-SU-2023:4347-1

    Dashboard / Vulnerabilities / SUSE-SU-2023:4347-1

    SUSE-SU-2023:4347-1

    Published: 2 Nov 2023Last Modified: 4 Feb 2026

    Summary: Security update for the Linux Kernel

    Details: The SUSE Linux Enterprise 15 SP1 kernel was updated to receive various security and bugfixes. The following security bugs were fixed: - CVE-2023-31085: Fixed a divide-by-zero error in do_div(sz,mtd->erasesize) that could cause a local DoS. (bsc#1210778) - CVE-2023-45862: Fixed an issue in the ENE UB6250 reader driver whwere an object could potentially extend beyond the end of an allocation causing. (bsc#1216051) - CVE-2023-34324: Fixed a possible deadlock in Linux kernel event handling. (bsc#1215745). - CVE-2023-39189: Fixed a flaw in the Netfilter subsystem that could allow a local privileged (CAP_NET_ADMIN) attacker to trigger an out-of-bounds read, leading to a crash or information disclosure. (bsc#1216046) - CVE-2023-39194: Fixed an out of bounds read in the XFRM subsystem (bsc#1215861). - CVE-2023-39193: Fixed an out of bounds read in the xtables subsystem (bsc#1215860). - CVE-2023-39192: Fixed an out of bounds read in the netfilter (bsc#1215858). - CVE-2023-42754: Fixed a NULL pointer dereference in the IPv4 stack that could lead to denial of service (bsc#1215467). - CVE-2023-1206: Fixed a hash collision flaw in the IPv6 connection lookup table which could be exploited by network adjacent attackers, increasing CPU usage by 95% (bsc#1212703). - CVE-2023-4921: Fixed a use-after-free vulnerability in the QFQ network scheduler which could be exploited to achieve local privilege escalation (bsc#1215275). - CVE-2023-4622: Fixed a use-after-free vulnerability in the Unix domain sockets component which could be exploited to achieve local privilege escalation (bsc#1215117). - CVE-2023-4623: Fixed a use-after-free issue in the HFSC network scheduler which could be exploited to achieve local privilege escalation (bsc#1215115). - CVE-2020-36766: Fixed a potential information leak in in the CEC driver (bsc#1215299). - CVE-2023-1859: Fixed a use-after-free flaw in Xen transport for 9pfs which could be exploited to crash the system (bsc#1210169). - CVE-2023-4881: Fixed a out-of-bounds write flaw in the netfilter subsystem that could lead to potential information disclosure or a denial of service (bsc#1215221). - CVE-2023-40283: Fixed use-after-free in l2cap_sock_ready_cb (bsc#1214233). - CVE-2023-1192: Fixed use-after-free in cifs_demultiplex_thread() (bsc#1208995). The following non-security bugs were fixed: - check-for-config-changes: ignore BUILTIN_RETURN_ADDRESS_STRIPS_PAC (bsc#1214380). gcc7 on SLE 15 does not support this while later gcc does. - mkspec: Allow unsupported KMPs (bsc#1214386) - old-flavors: Drop 2.6 kernels. 2.6 based kernels are EOL, upgrading from them is no longer suported.

    References: https://www.suse.com/support/update/announcement/2023/suse-su-20234347-1/, https://bugzilla.suse.com/1208995, https://bugzilla.suse.com/1210169, https://bugzilla.suse.com/1210778, https://bugzilla.suse.com/1212703, https://bugzilla.suse.com/1214233, https://bugzilla.suse.com/1214380, https://bugzilla.suse.com/1214386, https://bugzilla.suse.com/1215115, https://bugzilla.suse.com/1215117, https://bugzilla.suse.com/1215221, https://bugzilla.suse.com/1215275, https://bugzilla.suse.com/1215299, https://bugzilla.suse.com/1215467, https://bugzilla.suse.com/1215745, https://bugzilla.suse.com/1215858, https://bugzilla.suse.com/1215860, https://bugzilla.suse.com/1215861, https://bugzilla.suse.com/1216046, https://bugzilla.suse.com/1216051, https://www.suse.com/security/cve/CVE-2020-36766, https://www.suse.com/security/cve/CVE-2023-1192, https://www.suse.com/security/cve/CVE-2023-1206, https://www.suse.com/security/cve/CVE-2023-1859, https://www.suse.com/security/cve/CVE-2023-31085, https://www.suse.com/security/cve/CVE-2023-34324, https://www.suse.com/security/cve/CVE-2023-39189, https://www.suse.com/security/cve/CVE-2023-39192, https://www.suse.com/security/cve/CVE-2023-39193, https://www.suse.com/security/cve/CVE-2023-39194, https://www.suse.com/security/cve/CVE-2023-40283, https://www.suse.com/security/cve/CVE-2023-42754, https://www.suse.com/security/cve/CVE-2023-45862, https://www.suse.com/security/cve/CVE-2023-4622, https://www.suse.com/security/cve/CVE-2023-4623, https://www.suse.com/security/cve/CVE-2023-4881, https://www.suse.com/security/cve/CVE-2023-4921

    Affected packages

    Package

    Name: kernel-default

    Purl: pkg:rpm/suse/kernel-default&distro=SUSE%20Linux%20Enterprise%20Live%20Patching%2015%20SP1

    Affected ranges

    Type: ECOSYSTEM

    Events:

    Introduced- 0
    Fixed -4.12.14-150100.197.160.1

    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-2023:4347-1 | CVE-DB