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type: security |
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subject: Updated kernel packages fix security vulnerabilities and other bugs |
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CVE: |
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- CVE-2023-5178 |
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- CVE-2023-5090 |
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- CVE-2023-34324 |
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- CVE-2023-5345 |
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- CVE-2023-39189 |
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- CVE-2023-5633 |
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- CVE-2023-5717 |
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- CVE-2023-46813 |
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src: |
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9: |
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core: |
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- kernel-6.5.11-5.mga9 |
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- kmod-virtualbox-7.0.10-37.mga9 |
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- kmod-xtables-addons-3.24-50.mga9 |
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description: | |
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This kernel update is based on upstream 6.5.11 and fixes or adds |
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mitigations for at least the following security issues: |
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|
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A use-after-free vulnerability was found in drivers/nvme/target/tcp.c` |
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in `nvmet_tcp_free_crypto` due to a logical bug in the NVMe-oF/TCP |
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subsystem in the Linux kernel. This issue may allow a malicious user to |
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cause a use-after-free and double-free problem, which may permit remote |
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code execution or lead to local privilege escalation in case that the |
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attacker already has local privileges. (CVE-2023-5178) |
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|
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x86: KVM: SVM: always update the x2avic msr interception: |
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The following problem exists since x2avic was enabled in the KVM: |
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svm_set_x2apic_msr_interception is called to enable the interception of |
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the x2apic msrs. |
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In particular it is called at the moment the guest resets its apic. |
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Assuming that the guest's apic is in x2apic mode, the reset will bring |
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it back to the xapic mode. |
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The svm_set_x2apic_msr_interception however has an erroneous check for |
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'!apic_x2apic_mode()' which prevents it from doing anything in this case. |
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As a result of this, all x2apic msrs are left unintercepted, and that |
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exposes the bare metal x2apic (if enabled) to the guest. |
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Removing the erroneous '!apic_x2apic_mode()' check fixes that. |
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(CVE-2023-5090) |
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|
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In unprivileged Xen guests event handling can cause a deadlock with |
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Xen console handling. The evtchn_rwlock and the hvc_lock are taken in |
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opposite sequence in __hvc_poll() and in Xen console IRQ handling. |
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This is fixed by xen/events: replace evtchn_rwlock with RCU |
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(CVE-2023-34324) |
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|
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A use-after-free vulnerability in the Linux kernel's fs/smb/client |
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component can be exploited to achieve local privilege escalation. In |
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case of an error in smb3_fs_context_parse_param, ctx->password was freed |
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but the field was not set to NULL which could lead to double free. We |
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recommend upgrading past commit e6e43b8aa7cd3c3af686caf0c2e11819a886d705 |
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(CVE-2023-5345) |
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|
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A flaw was found in the Netfilter subsystem in the Linux kernel. The |
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nfnl_osf_add_callback function did not validate the user mode controlled |
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opt_num field. This flaw allows a local privileged (CAP_NET_ADMIN) |
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attacker to trigger an out-of-bounds read, leading to a crash or |
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information disclosure. (CVE-2023-39189) |
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|
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The reference count changes made as part of the CVE-2023-33951 and |
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CVE-2023-33952 fixes exposed a use-after-free flaw in the way memory |
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objects were handled when they were being used to store a surface. When |
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running inside a VMware guest with 3D acceleration enabled, a local, |
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unprivileged user could potentially use this flaw to escalate their |
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privileges. (CVE-2023-5633) |
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|
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A heap out-of-bounds write vulnerability in the Linux kernel's Linux |
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Kernel Performance Events (perf) component can be exploited to achieve |
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local privilege escalation. If perf_read_group() is called while an |
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event's sibling_list is smaller than its child's sibling_list, it can |
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increment or write to memory locations outside of the allocated buffer. |
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We recommend upgrading past commit |
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32671e3799ca2e4590773fd0e63aaa4229e50c06. (CVE-2023-5717) |
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|
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An issue was discovered in the Linux kernel before 6.5.9, exploitable by |
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local users with userspace access to MMIO registers. Incorrect access |
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checking in the #VC handler and instruction emulation of the SEV-ES |
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emulation of MMIO accesses could lead to arbitrary write access to |
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kernel memory (and thus privilege escalation). This depends on a race |
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condition through which userspace can replace an instruction before the |
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#VC handler reads it. (CVE-2023-46813) |
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|
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And fixes at least one normal bug about sleep lockups: |
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|
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Drop Patch1030 and 1050 to fix sleep lockups (bug #32082) |
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|
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references: |
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- https://bugs.mageia.org/show_bug.cgi?id=32537 |
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- https://bugs.mageia.org/show_bug.cgi?id=32082 |
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- https://cdn.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.5 |
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- https://cdn.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.5.1 |
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- https://cdn.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.5.2 |
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- https://cdn.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.5.3 |
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- https://cdn.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.5.4 |
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- https://cdn.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.5.5 |
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- https://cdn.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.5.6 |
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- https://cdn.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.5.7 |
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- https://cdn.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.5.8 |
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- https://cdn.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.5.9 |
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- https://cdn.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.5.10 |
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- https://cdn.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.5.11 |
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