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canonical ubuntu linux 20.04 vulnerabilities and exploits
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4.7
CVSSv2
CVE-2020-29372
An issue exists in do_madvise in mm/madvise.c in the Linux kernel prior to 5.6.8. There is a race condition between coredump operations and the IORING_OP_MADVISE implementation, aka CID-bc0c4d1e176e.
Linux Linux Kernel
Canonical Ubuntu Linux 16.04
Canonical Ubuntu Linux 18.04
Canonical Ubuntu Linux 14.04
Canonical Ubuntu Linux 20.04
3.6
CVSSv2
CVE-2020-11565
An issue exists in the Linux kernel up to and including 5.6.2. mpol_parse_str in mm/mempolicy.c has a stack-based out-of-bounds write because an empty nodelist is mishandled during mount option parsing, aka CID-aa9f7d5172fa. NOTE: Someone in the security community disagrees that ...
Linux Linux Kernel
Canonical Ubuntu Linux 16.04
Canonical Ubuntu Linux 18.04
Canonical Ubuntu Linux 14.04
Canonical Ubuntu Linux 20.04
NA
CVE-2022-2602
io_uring UAF, Unix SCM garbage collection
Linux Linux Kernel
Canonical Ubuntu Linux 20.04
Canonical Ubuntu Linux 18.04
Canonical Ubuntu Linux 22.04
Canonical Ubuntu Linux 22.10
2 Github repositories
NA
CVE-2022-3328
Race condition in snap-confine's must_mkdir_and_open_with_perms()
Canonical Ubuntu Linux 20.04
Canonical Ubuntu Linux 16.04
Canonical Ubuntu Linux 18.04
Canonical Ubuntu Linux 22.04
Canonical Ubuntu Linux 22.10
Canonical Snapd
1 Github repository
NA
CVE-2022-2084
Sensitive data could be exposed in world readable logs of cloud-init before version 22.3 when schema failures are reported. This leak could include hashed passwords.
Canonical Cloud-init
Canonical Ubuntu Linux 18.04
Canonical Ubuntu Linux 20.04
Canonical Ubuntu Linux 21.10
Canonical Ubuntu Linux 22.04
2.1
CVSSv2
CVE-2020-14415
oss_write in audio/ossaudio.c in QEMU prior to 5.0.0 mishandles a buffer position.
Qemu Qemu
Canonical Ubuntu Linux 16.04
Canonical Ubuntu Linux 18.04
Canonical Ubuntu Linux 20.04
2.1
CVSSv2
CVE-2020-11931
An Ubuntu-specific modification to Pulseaudio to provide security mediation for Snap-packaged applications was found to have a bypass of intended access restriction for snaps which plugs any of pulseaudio, audio-playback or audio-record via unloading the pulseaudio snap policy mo...
Pulseaudio Pulseaudio
Canonical Ubuntu Linux 16.04
Canonical Ubuntu Linux 18.04
Canonical Ubuntu Linux 19.10
Canonical Ubuntu Linux 20.04
4.3
CVSSv2
CVE-2020-12397
By encoding Unicode whitespace characters within the From email header, an attacker can spoof the sender email address that Thunderbird displays. This vulnerability affects Thunderbird < 68.8.0.
Mozilla Thunderbird
Canonical Ubuntu Linux 18.04
Canonical Ubuntu Linux 19.10
Canonical Ubuntu Linux 20.04
Canonical Ubuntu Linux 16.04
4.3
CVSSv2
CVE-2020-12398
If Thunderbird is configured to use STARTTLS for an IMAP server, and the server sends a PREAUTH response, then Thunderbird will continue with an unencrypted connection, causing email data to be sent without protection. This vulnerability affects Thunderbird < 68.9.0.
Mozilla Thunderbird
Canonical Ubuntu Linux 16.04
Canonical Ubuntu Linux 18.04
Canonical Ubuntu Linux 19.10
Canonical Ubuntu Linux 20.04
NA
CVE-2022-2585
It exists that when exec'ing from a non-leader thread, armed POSIX CPU timers would be left on a list but freed, leading to a use-after-free.
Linux Linux Kernel
Canonical Ubuntu Linux 20.04
Canonical Ubuntu Linux 22.04
1 Github repository
CVSSv2
CVSSv2
CVSSv3
VMScore
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