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Sicherheitslücken in linux-azure

In den letzten 30 Tagen veröffentlichte Sicherheitslücken für linux-azure: 0. Davon im KEV-Katalog: 0.

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Sicherheitslücken: 630

  1. CVE-2020-36791

    Hoch · CVSS 7.8EPSS 0,2%Korrektur verfügbar

    net_sched: keep alloc_hash updated after hash allocation

    In the Linux kernel, the following vulnerability has been resolved: net_sched: keep alloc_hash updated after hash allocation In commit 599be01ee567 ("net_sched: fix an OOB access in cls_tcindex") I moved cp->hash calculation before the first tcindex_alloc_perfect_hash(), but cp->alloc_hash is left untouched. This difference could lead to another out of bound access. cp->alloc_hash should always be the size allocated, we should update it after this tcindex_alloc_perfect_hash().

    • Auf 4.15.0-1082.92~16.04.1 aktualisieren
    Veröffentlicht Aktualisiert
  2. CVE-2021-47670

    Hoch · CVSS 8.8EPSS 0,22%Korrektur verfügbar

    can: peak_usb: fix use after free bugs

    In the Linux kernel, the following vulnerability has been resolved: can: peak_usb: fix use after free bugs After calling peak_usb_netif_rx_ni(skb), dereferencing skb is unsafe. Especially, the can_frame cf which aliases skb memory is accessed after the peak_usb_netif_rx_ni(). Reordering the lines solves the issue.

    • Auf 4.15.0-1112.124~16.04.1 aktualisieren
    Veröffentlicht Aktualisiert
  3. CVE-2021-47669

    Hoch · CVSS 7.8EPSS 0,19%Korrektur verfügbar

    can: vxcan: vxcan_xmit: fix use after free bug

    In the Linux kernel, the following vulnerability has been resolved: can: vxcan: vxcan_xmit: fix use after free bug After calling netif_rx_ni(skb), dereferencing skb is unsafe. Especially, the canfd_frame cfd which aliases skb memory is accessed after the netif_rx_ni().

    • Auf 4.15.0-1112.124~16.04.1 aktualisieren
    Veröffentlicht Aktualisiert
  4. CVE-2021-47668

    Hoch · CVSS 8.8EPSS 0,24%Korrektur verfügbar

    can: dev: can_restart: fix use after free bug

    In the Linux kernel, the following vulnerability has been resolved: can: dev: can_restart: fix use after free bug After calling netif_rx_ni(skb), dereferencing skb is unsafe. Especially, the can_frame cf which aliases skb memory is accessed after the netif_rx_ni() in: stats->rx_bytes += cf->len; Reordering the lines solves the issue.

    • Auf 4.15.0-1112.124~16.04.1 aktualisieren
    Veröffentlicht Aktualisiert
  5. CVE-2020-36789

    Mittel · CVSS 5.5EPSS 0,19%Korrektur verfügbar

    can: dev: can_get_echo_skb(): prevent call to kfree_skb() in hard IRQ context

    In the Linux kernel, the following vulnerability has been resolved: can: dev: can_get_echo_skb(): prevent call to kfree_skb() in hard IRQ context If a driver calls can_get_echo_skb() during a hardware IRQ (which is often, but not always, the case), the 'WARN_ON(in_irq)' in net/core/skbuff.c#skb_release_head_state() might be triggered, under network congestion circumstances, together with the potential risk of a NULL pointer dereference. The root cause of this issue is the call to kfree_skb() instead of dev_kfree_skb_irq() in net/core/dev.c#enqueue_to_backlog(). This patch prevents the skb to be freed within the call to netif_rx() by incre

    • Auf 4.15.0-1106.118~16.04.1 aktualisieren
    Veröffentlicht Aktualisiert
  6. CVE-2019-25160

    Kritisch · CVSS 9.1EPSS 0,75%Korrektur verfügbar

    netlabel: fix out-of-bounds memory accesses

    In the Linux kernel, the following vulnerability has been resolved: netlabel: fix out-of-bounds memory accesses There are two array out-of-bounds memory accesses, one in cipso_v4_map_lvl_valid(), the other in netlbl_bitmap_walk(). Both errors are embarassingly simple, and the fixes are straightforward. As a FYI for anyone backporting this patch to kernels prior to v4.8, you'll want to apply the netlbl_bitmap_walk() patch to cipso_v4_bitmap_walk() as netlbl_bitmap_walk() doesn't exist before Linux v4.8.

    • Auf 4.15.0-1056.61 aktualisieren
    Veröffentlicht Aktualisiert
  7. CVE-2020-36766

    Mittel · CVSS 4.8EPSS 0,24%Korrektur verfügbar

    CVE-2020-36766

    An issue was discovered in the Linux kernel before 5.8.6. drivers/media/cec/core/cec-api.c leaks one byte of kernel memory on specific hardware to unprivileged users, because of directly assigning log_addrs with a hole in the struct.

    • Auf 4.15.0-1098.109~16.04.1 aktualisieren
    Veröffentlicht Aktualisiert
  8. CVE-2020-11935

    Mittel · CVSS 4.4EPSS 0,2%Korrektur verfügbar

    aufs: improperly managed inode reference counts in the vfsub_dentry_open() method

    It was discovered that aufs improperly managed inode reference counts in the vfsub_dentry_open() method. A local attacker could use this vulnerability to cause a denial of service attack.

    • Auf 4.15.0-1092.102~16.04.1 aktualisieren
    Veröffentlicht Aktualisiert
  9. CVE-2023-1390

    Hoch · CVSS 7.5EPSS 5,1%Korrektur verfügbar

    CVE-2023-1390

    A remote denial of service vulnerability was found in the Linux kernel’s TIPC kernel module. The while loop in tipc_link_xmit() hits an unknown state while attempting to parse SKBs, which are not in the queue. Sending two small UDP packets to a system with a UDP bearer results in the CPU utilization for the system to instantly spike to 100%, causing a denial of service condition.

    • Auf 4.15.0-1109.121~16.04.1 aktualisieren
    Veröffentlicht Aktualisiert
  10. CVE-2020-27784

    Mittel · CVSS 5.5EPSS 0,23%Korrektur verfügbar

    CVE-2020-27784

    A vulnerability was found in the Linux kernel, where accessing a deallocated instance in printer_ioctl() printer_ioctl() tries to access of a printer_dev instance. However, use-after-free arises because it had been freed by gprinter_free().

    • Auf 4.15.0-1103.114~16.04.1 aktualisieren
    Veröffentlicht Aktualisiert
  11. CVE-2022-21385

    Mittel · CVSS 6.2EPSS 0,37%Korrektur verfügbar

    CVE-2022-21385

    A flaw in net_rds_alloc_sgs() in Oracle Linux kernels allows unprivileged local users to crash the machine. CVSS 3.1 Base Score 6.2 (Availability impacts). CVSS Vector (CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H)

    • Auf 4.15.0-1056.61 aktualisieren
    Veröffentlicht Aktualisiert
  12. CVE-2021-39714

    Hoch · CVSS 7.8EPSS 0,23%Korrektur verfügbar

    CVE-2021-39714

    In ion_buffer_kmap_get of ion.c, there is a possible use-after-free due to an integer overflow. This could lead to local escalation of privilege with no additional execution privileges needed. User interaction is not needed for exploitation.Product: AndroidVersions: Android kernelAndroid ID: A-205573273References: Upstream kernel

    • Auf 4.13.0-1005.7 aktualisieren
    Veröffentlicht Aktualisiert
  13. CVE-2021-3715

    Hoch · CVSS 7.8EPSS 0,35%Korrektur verfügbar

    CVE-2021-3715

    A flaw was found in the "Routing decision" classifier in the Linux kernel's Traffic Control networking subsystem in the way it handled changing of classification filters, leading to a use-after-free condition. This flaw allows unprivileged local users to escalate their privileges on the system. The highest threat from this vulnerability is to confidentiality, integrity, as well as system availability.

    • Auf 4.15.0-1082.92~16.04.1 aktualisieren
    Veröffentlicht Aktualisiert
  14. CVE-2021-39634

    Hoch · CVSS 7.8EPSS 0,25%Korrektur verfügbar

    CVE-2021-39634

    In fs/eventpoll.c, there is a possible use after free. This could lead to local escalation of privilege with no additional execution privileges needed. User interaction is not needed for exploitation.Product: AndroidVersions: Android kernelAndroid ID: A-204450605References: Upstream kernel

    • Auf 4.15.0-1100.111~16.04.1 aktualisieren
    Veröffentlicht Aktualisiert

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