Vulnerabilities (CVE)

Filtered by vendor Canonical Subscribe
Filtered by product Ubuntu Linux
Total 4161 CVE
CVE Vendors Products Updated CVSS v2 CVSS v3
CVE-2020-12771 6 Canonical, Debian, Linux and 3 more 37 Ubuntu Linux, Debian Linux, Linux Kernel and 34 more 2024-11-21 4.9 MEDIUM 5.5 MEDIUM
An issue was discovered in the Linux kernel through 5.6.11. btree_gc_coalesce in drivers/md/bcache/btree.c has a deadlock if a coalescing operation fails.
CVE-2020-12770 5 Canonical, Debian, Fedoraproject and 2 more 36 Ubuntu Linux, Debian Linux, Fedora and 33 more 2024-11-21 4.6 MEDIUM 6.7 MEDIUM
An issue was discovered in the Linux kernel through 5.6.11. sg_write lacks an sg_remove_request call in a certain failure case, aka CID-83c6f2390040.
CVE-2020-12769 5 Canonical, Debian, Linux and 2 more 36 Ubuntu Linux, Debian Linux, Linux Kernel and 33 more 2024-11-21 4.9 MEDIUM 5.5 MEDIUM
An issue was discovered in the Linux kernel before 5.4.17. drivers/spi/spi-dw.c allows attackers to cause a panic via concurrent calls to dw_spi_irq and dw_spi_transfer_one, aka CID-19b61392c5a8.
CVE-2020-12768 3 Canonical, Debian, Linux 3 Ubuntu Linux, Debian Linux, Linux Kernel 2024-11-21 2.1 LOW 5.5 MEDIUM
An issue was discovered in the Linux kernel before 5.6. svm_cpu_uninit in arch/x86/kvm/svm.c has a memory leak, aka CID-d80b64ff297e. NOTE: third parties dispute this issue because it's a one-time leak at the boot, the size is negligible, and it can't be triggered at will
CVE-2020-12767 4 Canonical, Debian, Libexif Project and 1 more 4 Ubuntu Linux, Debian Linux, Libexif and 1 more 2024-11-21 2.1 LOW 5.5 MEDIUM
exif_entry_get_value in exif-entry.c in libexif 0.6.21 has a divide-by-zero error.
CVE-2020-12695 21 Asus, Broadcom, Canon and 18 more 217 Rt-n11, Adsl, Selphy Cp1200 and 214 more 2024-11-21 7.8 HIGH 7.5 HIGH
The Open Connectivity Foundation UPnP specification before 2020-04-17 does not forbid the acceptance of a subscription request with a delivery URL on a different network segment than the fully qualified event-subscription URL, aka the CallStranger issue.
CVE-2020-12692 2 Canonical, Openstack 2 Ubuntu Linux, Keystone 2024-11-21 5.5 MEDIUM 5.4 MEDIUM
An issue was discovered in OpenStack Keystone before 15.0.1, and 16.0.0. The EC2 API doesn't have a signature TTL check for AWS Signature V4. An attacker can sniff the Authorization header, and then use it to reissue an OpenStack token an unlimited number of times.
CVE-2020-12691 2 Canonical, Openstack 2 Ubuntu Linux, Keystone 2024-11-21 6.5 MEDIUM 8.8 HIGH
An issue was discovered in OpenStack Keystone before 15.0.1, and 16.0.0. Any authenticated user can create an EC2 credential for themselves for a project that they have a specified role on, and then perform an update to the credential user and project, allowing them to masquerade as another user. This potentially allows a malicious user to act as the admin on a project another user has the admin role on, which can effectively grant that user global admin privileges.
CVE-2020-12689 2 Canonical, Openstack 2 Ubuntu Linux, Keystone 2024-11-21 6.5 MEDIUM 8.8 HIGH
An issue was discovered in OpenStack Keystone before 15.0.1, and 16.0.0. Any user authenticated within a limited scope (trust/oauth/application credential) can create an EC2 credential with an escalated permission, such as obtaining admin while the user is on a limited viewer role. This potentially allows a malicious user to act as the admin on a project another user has the admin role on, which can effectively grant that user global admin privileges.
CVE-2020-12674 4 Canonical, Debian, Dovecot and 1 more 4 Ubuntu Linux, Debian Linux, Dovecot and 1 more 2024-11-21 5.0 MEDIUM 7.5 HIGH
In Dovecot before 2.3.11.3, sending a specially formatted RPA request will crash the auth service because a length of zero is mishandled.
CVE-2020-12673 4 Canonical, Debian, Dovecot and 1 more 4 Ubuntu Linux, Debian Linux, Dovecot and 1 more 2024-11-21 5.0 MEDIUM 7.5 HIGH
In Dovecot before 2.3.11.3, sending a specially formatted NTLM request will crash the auth service because of an out-of-bounds read.
CVE-2020-12663 5 Canonical, Debian, Fedoraproject and 2 more 5 Ubuntu Linux, Debian Linux, Fedora and 2 more 2024-11-21 5.0 MEDIUM 7.5 HIGH
Unbound before 1.10.1 has an infinite loop via malformed DNS answers received from upstream servers.
CVE-2020-12662 5 Canonical, Debian, Fedoraproject and 2 more 5 Ubuntu Linux, Debian Linux, Fedora and 2 more 2024-11-21 5.0 MEDIUM 7.5 HIGH
Unbound before 1.10.1 has Insufficient Control of Network Message Volume, aka an "NXNSAttack" issue. This is triggered by random subdomains in the NSDNAME in NS records.
CVE-2020-12656 3 Canonical, Linux, Opensuse 3 Ubuntu Linux, Linux Kernel, Leap 2024-11-21 2.1 LOW 5.5 MEDIUM
gss_mech_free in net/sunrpc/auth_gss/gss_mech_switch.c in the rpcsec_gss_krb5 implementation in the Linux kernel through 5.6.10 lacks certain domain_release calls, leading to a memory leak. Note: This was disputed with the assertion that the issue does not grant any access not already available. It is a problem that on unloading a specific kernel module some memory is leaked, but loading kernel modules is a privileged operation. A user could also write a kernel module to consume any amount of memory they like and load that replicating the effect of this bug
CVE-2020-12421 2 Canonical, Mozilla 4 Ubuntu Linux, Firefox, Firefox Esr and 1 more 2024-11-21 4.3 MEDIUM 6.5 MEDIUM
When performing add-on updates, certificate chains terminating in non-built-in-roots were rejected (even if they were legitimately added by an administrator.) This could have caused add-ons to become out-of-date silently without notification to the user. This vulnerability affects Firefox ESR < 68.10, Firefox < 78, and Thunderbird < 68.10.0.
CVE-2020-12420 3 Canonical, Mozilla, Opensuse 5 Ubuntu Linux, Firefox, Firefox Esr and 2 more 2024-11-21 9.3 HIGH 8.8 HIGH
When trying to connect to a STUN server, a race condition could have caused a use-after-free of a pointer, leading to memory corruption and a potentially exploitable crash. This vulnerability affects Firefox ESR < 68.10, Firefox < 78, and Thunderbird < 68.10.0.
CVE-2020-12419 3 Canonical, Mozilla, Opensuse 5 Ubuntu Linux, Firefox, Firefox Esr and 2 more 2024-11-21 9.3 HIGH 8.8 HIGH
When processing callbacks that occurred during window flushing in the parent process, the associated window may die; causing a use-after-free condition. This could have led to memory corruption and a potentially exploitable crash. This vulnerability affects Firefox ESR < 68.10, Firefox < 78, and Thunderbird < 68.10.0.
CVE-2020-12418 3 Canonical, Mozilla, Opensuse 5 Ubuntu Linux, Firefox, Firefox Esr and 2 more 2024-11-21 4.3 MEDIUM 6.5 MEDIUM
Manipulating individual parts of a URL object could have caused an out-of-bounds read, leaking process memory to malicious JavaScript. This vulnerability affects Firefox ESR < 68.10, Firefox < 78, and Thunderbird < 68.10.0.
CVE-2020-12417 3 Canonical, Mozilla, Opensuse 5 Ubuntu Linux, Firefox, Firefox Esr and 2 more 2024-11-21 9.3 HIGH 8.8 HIGH
Due to confusion about ValueTags on JavaScript Objects, an object may pass through the type barrier, resulting in memory corruption and a potentially exploitable crash. *Note: this issue only affects Firefox on ARM64 platforms.* This vulnerability affects Firefox ESR < 68.10, Firefox < 78, and Thunderbird < 68.10.0.
CVE-2020-12410 2 Canonical, Mozilla 3 Ubuntu Linux, Firefox, Firefox Esr 2024-11-21 9.3 HIGH 8.8 HIGH
Mozilla developers reported memory safety bugs present in Firefox 76 and Firefox ESR 68.8. Some of these bugs showed evidence of memory corruption and we presume that with enough effort some of these could have been exploited to run arbitrary code. This vulnerability affects Thunderbird < 68.9.0, Firefox < 77, and Firefox ESR < 68.9.