Summary
Al Viro discovered that the Linux kernel for s390x systems did not properly
perform page table upgrades for kernel sections that use secondary address
mode. A local attacker could use this to cause a denial of service (system
crash) or execute arbitrary code. (CVE-2020-11884)
It was discovered that the Intel Wi-Fi driver in the Linux kernel did not
properly check for errors in some situations. A local attacker could
possibly use this to cause a denial of service (system crash).
(CVE-2019-16234)
Tristan Madani discovered that the block I/O tracing implementation in the
Linux kernel contained a race condition. A local attacker could use this to
cause a denial of service (system crash) or possibly expose sensitive
information. (CVE-2019-19768)
It was discovered that the vhost net driver in the Linux kernel contained a
stack buffer overflow. A local attacker with the ability to perform ioctl()
calls on /dev/vhost-net could use this to cause a denial of service (system
crash). (CVE-2020-10942)
It was discovered that the virtual terminal implementation in the Linux
kernel contained a race condition. A local attacker could possibly use this
to cause a denial of service (system crash) or expose sensitive
information. (CVE-2020-8648)
Shijie Luo discovered that the ext4 file system implementation in the Linux
kernel did not properly check for a too-large journal size. An attacker
could use this to construct a malicious ext4 image that, when mounted,
could cause a denial of service (soft lockup). (CVE-2020-8992)
Jordy Zomer discovered that the floppy driver in the Linux kernel did not
properly check for errors in some situations. A local attacker could
possibly use this to cause a denial of service (system crash) or possibly
expose sensitive information. (CVE-2020-9383)
Fixed packages 6
| Release | Package | Fixed in |
|---|---|---|
| Ubuntu · 18.04 LTS 18.04:LTS | linux-azure-5.3 | 5.3.0-1020.21~18.04.1 |
| Ubuntu · 18.04 LTS 18.04:LTS | linux-gcp-5.3 | 5.3.0-1018.19~18.04.1 |
| Ubuntu · 18.04 LTS 18.04:LTS | linux-gke-5.3 | 5.3.0-1018.19~18.04.1 |
| Ubuntu · 18.04 LTS 18.04:LTS | linux-hwe | 5.3.0-51.44~18.04.2 |
| Ubuntu · 18.04 LTS 18.04:LTS | linux-oracle-5.3 | 5.3.0-1016.18~18.04.1 |
| Ubuntu · 18.04 LTS 18.04:LTS | linux-raspi2-5.3 | 5.3.0-1023.25~18.04.1 |
Vulnerabilities 7
-
Unscored —
drivers/net/wireless/intel/iwlwifi/pcie/trans.c in the Linux kernel 5.2.14 does not check the alloc_workqueue return va…
-
Unscored —
In the Linux kernel 5.4.0-rc2, there is a use-after-free (read) in the __blk_add_trace function in kernel/trace/blktrac…
-
Unscored —
In the Linux kernel before 5.5.8, get_raw_socket in drivers/vhost/net.c lacks validation of an sk_family field, which m…
-
Unscored —
In the Linux kernel 4.19 through 5.6.7 on the s390 platform, code execution may occur because of a race condition, as d…
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Unscored —
There is a use-after-free vulnerability in the Linux kernel through 5.5.2 in the n_tty_receive_buf_common function in d…
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Unscored —
ext4_protect_reserved_inode in fs/ext4/block_validity.c in the Linux kernel through 5.5.3 allows attackers to cause a d…
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Unscored —
An issue was discovered in the Linux kernel 3.16 through 5.5.6. set_fdc in drivers/block/floppy.c leads to a wait_til_r…
References
-
report
https://ubuntu.com/security/CVE-2019-16234
-
report
https://ubuntu.com/security/CVE-2019-19768
-
report
https://ubuntu.com/security/CVE-2020-8648
-
report
https://ubuntu.com/security/CVE-2020-8992
-
report
https://ubuntu.com/security/CVE-2020-9383
-
report
https://ubuntu.com/security/CVE-2020-10942
-
report
https://ubuntu.com/security/CVE-2020-11884