Summary
It was discovered that the NFSD implementation in the Linux kernel did not
properly handle some RPC messages, leading to a buffer overflow. A remote
attacker could use this to cause a denial of service (system crash) or
possibly execute arbitrary code. (CVE-2022-43945)
Jann Horn discovered that the Linux kernel did not properly track memory
allocations for anonymous VMA mappings in some situations, leading to
potential data structure reuse. A local attacker could use this to cause a
denial of service (system crash) or possibly execute arbitrary code.
(CVE-2022-42703)
Roger Pau Monné discovered that the Xen virtual block driver in the Linux
kernel did not properly initialize memory pages to be used for shared
communication with the backend. A local attacker could use this to expose
sensitive information (guest kernel memory). (CVE-2022-26365)
Jan Beulich discovered that the Xen network device frontend driver in the
Linux kernel incorrectly handled socket buffers (skb) references when
communicating with certain backends. A local attacker could use this to
cause a denial of service (guest crash). (CVE-2022-33743)
It was discovered that a memory leak existed in the IPv6 implementation of
the Linux kernel. A local attacker could use this to cause a denial of
service (memory exhaustion). (CVE-2022-3524)
It was discovered that a race condition existed in the Bluetooth subsystem
in the Linux kernel, leading to a use-after-free vulnerability. A local
attacker could use this to cause a denial of service (system crash) or
possibly execute arbitrary code. (CVE-2022-3564)
It was discovered that the TCP implementation in the Linux kernel contained
a data race condition. An attacker could possibly use this to cause
undesired behaviors. (CVE-2022-3566)
It was discovered that the IPv6 implementation in the Linux kernel
contained a data race condition. An attacker could possibly use this to
cause undesired behaviors. (CVE-2022-3567)
It was discovered that the Realtek RTL8152 USB Ethernet adapter driver in
the Linux kernel did not properly handle certain error conditions. A local
attacker with physical access could plug in a specially crafted USB device
to cause a denial of service (memory exhaustion). (CVE-2022-3594)
It was discovered that a null pointer dereference existed in the NILFS2
file system implementation in the Linux kernel. A local attacker could use
this to cause a denial of service (system crash). (CVE-2022-3621)
Fixed packages 1
| Release | Package | Fixed in |
|---|---|---|
| Ubuntu · 20.04 LTS 20.04:LTS | linux-oem-5.14 | 5.14.0-1055.62 |
Vulnerabilities 10
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High 7.5
The Linux kernel NFSD implementation prior to versions 5.19.17 and 6.0.2 are vulnerable to buffer overflow. NFSD tracks…
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Medium 5.5CVE-2022-3564 Public exploit
Linux Kernel Bluetooth l2cap_core.c l2cap_reassemble_sdu use after free
A vulnerability classified as critical was found in Linux Kernel. Affected by this vulnerability is the function l2cap_reassemble_sdu of the file net/bluetooth/l2cap_core.c of the component Bluetooth. The manipulation leads to use after free. It is recommende…
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Medium 5.3
Linux Kernel BPF r8152.c intr_callback logging of excessive data
A vulnerability was found in Linux Kernel. It has been declared as problematic. Affected by this vulnerability is the function intr_callback of the file drivers/net/usb/r8152.c of the component BPF. The manipulation leads to logging of excessive data. The att…
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Medium 4.6
Linux Kernel TCP tcp_setsockopt race condition
A vulnerability was identified in Linux Kernel up to 4.19.316/5.4.278/5.10.220/5.15.161. This impacts the function tcp_getsockopt/tcp_setsockopt of the component TCP Handler. Such manipulation leads to race condition. A high complexity level is associated wit…
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Medium 4.6
Linux Kernel IPv6 inet6_dgram_ops race condition
A vulnerability has been found in Linux Kernel and classified as problematic. This vulnerability affects the function inet6_stream_ops/inet6_dgram_ops of the component IPv6 Handler. The manipulation leads to race condition. It is recommended to apply a patch …
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Medium 4.3
Linux Kernel IPv6 ipv6_renew_options memory leak
A vulnerability was found in Linux Kernel. It has been declared as problematic. Affected by this vulnerability is the function ipv6_renew_options of the component IPv6 Handler. The manipulation leads to memory leak. The attack can be launched remotely. It is …
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Medium 4.3
Linux Kernel nilfs2 inode.c nilfs_bmap_lookup_at_level null pointer dereference
A vulnerability was found in Linux Kernel. It has been classified as problematic. Affected is the function nilfs_bmap_lookup_at_level of the file fs/nilfs2/inode.c of the component nilfs2. The manipulation leads to null pointer dereference. It is possible to …
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Unscored —
Linux disk/nic frontends data leaks T[his CNA information record relates to multiple CVEs; the text explains which aspe…
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Unscored —
network backend may cause Linux netfront to use freed SKBs While adding logic to support XDP (eXpress Data Path), a cod…
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Unscored —CVE-2022-42703 Public exploit
mm/rmap.c in the Linux kernel before 5.19.7 has a use-after-free related to leaf anon_vma double reuse.
References
-
report
https://ubuntu.com/security/CVE-2022-3524
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report
https://ubuntu.com/security/CVE-2022-3564
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report
https://ubuntu.com/security/CVE-2022-3566
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report
https://ubuntu.com/security/CVE-2022-3567
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report
https://ubuntu.com/security/CVE-2022-3594
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report
https://ubuntu.com/security/CVE-2022-3621
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report
https://ubuntu.com/security/CVE-2022-26365
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report
https://ubuntu.com/security/CVE-2022-33743
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report
https://ubuntu.com/security/CVE-2022-42703
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report
https://ubuntu.com/security/CVE-2022-43945