Summary
Paulo Bonzini discovered that the KVM hypervisor implementation in the
Linux kernel could improperly let a nested (level 2) guest access the
resources of a parent (level 1) guest in certain situations. An attacker
could use this to expose sensitive information. (CVE-2020-2732)
Gregory Herrero discovered that the fix for CVE-2019-14615 to address the
Linux kernel not properly clearing data structures on context switches for
certain Intel graphics processors was incomplete. A local attacker could
use this to expose sensitive information. (CVE-2020-8832)
It was discovered that the IPMI message handler implementation in the Linux
kernel did not properly deallocate memory in certain situations. A local
attacker could use this to cause a denial of service (kernel memory
exhaustion). (CVE-2019-19046)
It was discovered that the Intel WiMAX 2400 driver in the Linux kernel did
not properly deallocate memory in certain situations. A local attacker
could use this to cause a denial of service (kernel memory exhaustion).
(CVE-2019-19051)
It was discovered that the Marvell Wi-Fi device driver in the Linux kernel
did not properly deallocate memory in certain error conditions. A local
attacker could use this to possibly cause a denial of service (kernel
memory exhaustion). (CVE-2019-19056)
It was discovered that the Intel(R) Wi-Fi device driver in the Linux kernel
device driver in the Linux kernel did not properly deallocate memory in
certain error conditions. A local attacker could possibly use this to cause
a denial of service (kernel memory exhaustion). (CVE-2019-19058)
It was discovered that the Brocade BFA Fibre Channel device driver in the
Linux kernel did not properly deallocate memory in certain error
conditions. A local attacker could possibly use this to cause a denial of
service (kernel memory exhaustion). (CVE-2019-19066)
It was discovered that the Realtek RTL8xxx USB Wi-Fi device driver in the
Linux kernel did not properly deallocate memory in certain error
conditions. A local attacker could possibly use this to cause a denial of
service (kernel memory exhaustion). (CVE-2019-19068)
It was discovered that ZR364XX Camera USB device driver for the Linux
kernel did not properly initialize memory. A physically proximate attacker
could use this to cause a denial of service (system crash).
(CVE-2019-15217)
Fixed packages 14
| Release | Package | Fixed in |
|---|---|---|
| Ubuntu · 16.04 LTS 16.04:LTS | linux-aws-hwe | 4.15.0-1063.67~16.04.1 |
| Ubuntu · 16.04 LTS 16.04:LTS | linux-azure | 4.15.0-1075.80 |
| Ubuntu · 16.04 LTS 16.04:LTS | linux-gcp | 4.15.0-1058.62 |
| Ubuntu · 16.04 LTS 16.04:LTS | linux-hwe | 4.15.0-91.92~16.04.1 |
| Ubuntu · 16.04 LTS 16.04:LTS | linux-oracle | 4.15.0-1035.38~16.04.1 |
| Ubuntu · 18.04 LTS 18.04:LTS | linux | 4.15.0-91.92 |
| Ubuntu · 18.04 LTS 18.04:LTS | linux-aws | 4.15.0-1063.67 |
| Ubuntu · 18.04 LTS 18.04:LTS | linux-gke-4.15 | 4.15.0-1055.58 |
| Ubuntu · 18.04 LTS 18.04:LTS | linux-kvm | 4.15.0-1056.57 |
| Ubuntu · 18.04 LTS 18.04:LTS | linux-oem | 4.15.0-1076.86 |
| Ubuntu · 18.04 LTS 18.04:LTS | linux-oracle | 4.15.0-1035.39 |
| Ubuntu · 18.04 LTS 18.04:LTS | linux-raspi2 | 4.15.0-1057.61 |
| Ubuntu · 18.04 LTS 18.04:LTS | linux-snapdragon | 4.15.0-1074.81 |
| Ubuntu · Pro 14.04 LTS Pro:14.04:LTS | linux-azure | 4.15.0-1074.79~14.04.1 |
Vulnerabilities 9
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Medium 5.8
A flaw was discovered in the way that the KVM hypervisor handled instruction emulation for an L2 guest when nested virt…
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Medium 5.5
Ubuntu 18.04 Linux kernel i915 incomplete fix for CVE-2019-14615
The fix for the Linux kernel in Ubuntu 18.04 LTS for CVE-2019-14615 ("The Linux kernel did not properly clear data structures on context switches for certain Intel graphics processors.") was discovered to be incomplete, meaning that in versions of the kernel …
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Unscored —
An issue was discovered in the Linux kernel before 5.2.3. There is a NULL pointer dereference caused by a malicious USB…
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Unscored —
A memory leak in the __ipmi_bmc_register() function in drivers/char/ipmi/ipmi_msghandler.c in the Linux kernel through …
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Unscored —
A memory leak in the i2400m_op_rfkill_sw_toggle() function in drivers/net/wimax/i2400m/op-rfkill.c in the Linux kernel …
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Unscored —
A memory leak in the mwifiex_pcie_alloc_cmdrsp_buf() function in drivers/net/wireless/marvell/mwifiex/pcie.c in the Lin…
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Unscored —
A memory leak in the alloc_sgtable() function in drivers/net/wireless/intel/iwlwifi/fw/dbg.c in the Linux kernel throug…
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Unscored —
A memory leak in the bfad_im_get_stats() function in drivers/scsi/bfa/bfad_attr.c in the Linux kernel through 5.3.11 al…
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Unscored —
A memory leak in the rtl8xxxu_submit_int_urb() function in drivers/net/wireless/realtek/rtl8xxxu/rtl8xxxu_core.c in the…
References
-
report
https://ubuntu.com/security/CVE-2019-15217
-
report
https://ubuntu.com/security/CVE-2019-19046
-
report
https://ubuntu.com/security/CVE-2019-19051
-
report
https://ubuntu.com/security/CVE-2019-19056
-
report
https://ubuntu.com/security/CVE-2019-19058
-
report
https://ubuntu.com/security/CVE-2019-19066
-
report
https://ubuntu.com/security/CVE-2019-19068
-
report
https://ubuntu.com/security/CVE-2020-2732
-
report
https://ubuntu.com/security/CVE-2020-8832