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CVE-2020-12768

kernel: memory leak in svm_cpu_init function in arch/x86/kvm/svm.c

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

CVSS 3.1 · 5.5 Medium EPSS < 1% KEV · Not listed
Vendors
Canonical Debian Linux
Products
Ubuntu Linux Debian Linux Linux Kernel
CVE-2020-12695

hostapd: UPnP SUBSCRIBE misbehavior in WPS AP

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.

CVSS 3.1 · 7.5 High EPSS 15.2% KEV · Not listed
Vendors
Asus Broadcom Canon and 19 more
Products
Rt-n11 Adsl Selphy Cp1200 and 215 more
CVE-2020-12692

openstack-keystone: failure to check signature TTL of the EC2 credential auth method

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.

CVSS 3.1 · 5.4 Medium EPSS < 1% KEV · Not listed
Vendors
Canonical Openstack Redhat
Products
Ubuntu Linux Keystone Openstack
CVE-2020-12691

openstack-keystone: Credentials endpoint policy logic allows changing credential owner and target project ID

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.

CVSS 3.1 · 8.8 High EPSS 4.9% KEV · Not listed
Vendors
Canonical Openstack Redhat
Products
Ubuntu Linux Keystone Openstack
CVE-2020-12689

openstack-keystone: EC2 and credential endpoints are not protected from a scoped context

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.

CVSS 3.1 · 8.8 High EPSS 1.6% KEV · Not listed
Vendors
Canonical Openstack Redhat
Products
Ubuntu Linux Keystone Openstack
CVE-2020-12673

dovecot: Out of bound reads in dovecot NTLM implementation

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.

CVSS 3.1 · 7.5 High EPSS 6.2% KEV · Not listed
Vendors
Canonical Debian Dovecot and 2 more
Products
Ubuntu Linux Debian Linux Dovecot and 4 more
CVE-2020-12662

unbound: amplification of an incoming query into a large number of queries directed to a target

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.

CVSS 3.1 · 7.5 High EPSS 3.2% KEV · Not listed
Vendors
Canonical Debian Fedoraproject and 3 more
Products
Ubuntu Linux Debian Linux Fedora and 5 more
CVE-2020-12656

kernel: gss_mech_free in net/sunrpc/auth_gss/gss_mech_switch.c in the rpcsec_gss_krb5 implementation lacks certain domain_release calls, leading to a memory leak.

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

CVSS 3.1 · 5.5 Medium EPSS < 1% KEV · Not listed
Vendors
Canonical Linux Opensuse
Products
Ubuntu Linux Linux Kernel Leap
CVE-2020-12421

Mozilla: Add-On updates did not respect the same certificate trust rules as software updates

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.

CVSS 3.1 · 6.5 Medium EPSS 1.8% KEV · Not listed
Vendors
Canonical Mozilla Redhat
Products
Ubuntu Linux Firefox Firefox Esr and 4 more
CVE-2020-12420

Mozilla: Use-After-Free when trying to connect to a STUN server

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.

CVSS 3.1 · 8.8 High EPSS 1.9% KEV · Not listed
Vendors
Canonical Mozilla Opensuse and 1 more
Products
Ubuntu Linux Firefox Firefox Esr and 5 more
CVE-2020-12419

Mozilla: Use-after-free in nsGlobalWindowInner

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.

CVSS 3.1 · 8.8 High EPSS 2.3% KEV · Not listed
Vendors
Canonical Mozilla Opensuse and 1 more
Products
Ubuntu Linux Firefox Firefox Esr and 5 more
CVE-2020-12418

Mozilla: Information disclosure due to manipulated URL object

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.

CVSS 3.1 · 6.5 Medium EPSS 3.0% KEV · Not listed
Vendors
Canonical Mozilla Opensuse and 1 more
Products
Ubuntu Linux Firefox Firefox Esr and 5 more
CVE-2020-12417

Mozilla: Memory corruption due to missing sign-extension for ValueTags on ARM64

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.

CVSS 3.1 · 8.8 High EPSS 2.7% KEV · Not listed
Vendors
Canonical Mozilla Opensuse and 1 more
Products
Ubuntu Linux Firefox Firefox Esr and 5 more
CVE-2020-12410

Mozilla: Memory safety bugs fixed in Firefox 77 and Firefox ESR 68.9

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.

CVSS 3.1 · 8.8 High EPSS 1.7% KEV · Not listed
Vendors
Canonical Mozilla Redhat
Products
Ubuntu Linux Firefox Firefox Esr and 3 more
CVE-2020-12406

Mozilla: JavaScript Type confusion with NativeTypes

Mozilla Developer Iain Ireland discovered a missing type check during unboxed objects removal, resulting in a crash. We presume that with enough effort that it could be exploited to run arbitrary code. This vulnerability affects Thunderbird < 68.9.0, Firefox < 77, and Firefox ESR < 68.9.

CVSS 3.1 · 8.8 High EPSS 1.0% KEV · Not listed
Vendors
Canonical Mozilla Redhat
Products
Ubuntu Linux Firefox Firefox Esr and 4 more
CVE-2020-12405

Mozilla: Use-after-free in SharedWorkerService

When browsing a malicious page, a race condition in our SharedWorkerService could occur and lead to a potentially exploitable crash. This vulnerability affects Thunderbird < 68.9.0, Firefox < 77, and Firefox ESR < 68.9.

CVSS 3.1 · 5.3 Medium EPSS 1.4% KEV · Not listed
Vendors
Canonical Mozilla Redhat
Products
Ubuntu Linux Firefox Firefox Esr and 4 more
CVE-2020-12398

Mozilla: Security downgrade with IMAP STARTTLS leads to information leakage

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.

CVSS 3.1 · 7.5 High EPSS < 1% KEV · Not listed
Vendors
Canonical Mozilla Redhat
Products
Ubuntu Linux Thunderbird Enterprise Linux and 2 more