libyang: stack-based buffer overflow in make_canonical when bits leaf type is used

In all versions of libyang before 1.0-r5, a stack-based buffer overflow was discovered in the way libyang parses YANG files with a leaf of type "bits". An application that uses libyang to parse untrusted YANG files may be vulnerable to this flaw, which would allow an attacker to cause a denial of service or possibly gain code execution.

Kernel: kvm: OOB memory write via kvm_dev_ioctl_get_cpuid

An out-of-bounds memory write issue was found in the Linux Kernel, version 3.13 through 5.4, in the way the Linux kernel's KVM hypervisor handled the 'KVM_GET_EMULATED_CPUID' ioctl(2) request to get CPUID features emulated by the KVM hypervisor. A user or process able to access the '/dev/kvm' device could use this flaw to crash the system, resulting in a denial of service.

knot-resolver before version 4.3.0 is vulnerable to denial of service through high CPU utilization. DNS replies with very many resource records might be processed very inefficiently, in extreme cases taking even several CPU seconds for each such uncached message. For example, a few thousand A records can be squashed into one DNS message (limit is 64kB).

haproxy: HTTP/2 implementation vulnerable to intermediary encapsulation attacks

The HTTP/2 implementation in HAProxy before 2.0.10 mishandles headers, as demonstrated by carriage return (CR, ASCII 0xd), line feed (LF, ASCII 0xa), and the zero character (NUL, ASCII 0x0), aka Intermediary Encapsulation Attacks.

In Wikibase Wikidata Query Service GUI before 0.3.6-SNAPSHOT 2019-11-07, when mathematical expressions in results are displayed directly, arbitrary JavaScript execution can occur, aka XSS. This was addressed by introducing MathJax as a new mathematics rendering engine. NOTE: this GUI code is no longer bundled with the Wikibase Wikidata Query Service snapshots, such as 0.3.6-SNAPSHOT.

ui/editor/tooltip/Rdf.js in Wikibase Wikidata Query Service GUI before 0.3.6-SNAPSHOT 2019-11-07 allows HTML injection in tooltips for entities. NOTE: this GUI code is no longer bundled with the Wikibase Wikidata Query Service snapshots, such as 0.3.6-SNAPSHOT.

ui/ResultView.js in Wikibase Wikidata Query Service GUI before 0.3.6-SNAPSHOT 2019-11-07 allows HTML injection when reporting the number of results and number of milliseconds. NOTE: this GUI code is no longer bundled with the Wikibase Wikidata Query Service snapshots, such as 0.3.6-SNAPSHOT.

Silverstripe CMS sites through 4.4.4 which have opted into HTTP Cache Headers on responses served by the framework's HTTP layer can be vulnerable to web cache poisoning. Through modifying the X-Original-Url and X-HTTP-Method-Override headers, responses with malicious HTTP headers can return unexpected responses to other consumers of this cached response. Most other headers associated with web cache poisoning are already disabled through request hostname forgery whitelists.

SilverStripe through 4.4.x before 4.4.5 and 4.5.x before 4.5.2 allows Reflected XSS on the login form and custom forms. Silverstripe Forms allow malicious HTML or JavaScript to be inserted through non-scalar FormField attributes, which allows performing XSS (Cross-Site Scripting) on some forms built with user input (Request data). This can lead to phishing attempts to obtain a user's credentials or other sensitive user input.

Xmidt cjwt through 1.0.1 before 2019-11-25 maps unsupported algorithms to alg=none, which sometimes leads to untrusted accidental JWT acceptance.

kernel: out-of-bounds write in ext4_xattr_set_entry in fs/ext4/xattr.c

In the Linux kernel before 5.2, a setxattr operation, after a mount of a crafted ext4 image, can cause a slab-out-of-bounds write access because of an ext4_xattr_set_entry use-after-free in fs/ext4/xattr.c when a large old_size value is used in a memset call, aka CID-345c0dbf3a30.

kernel: use-after-free in rwsem_down_write_slowpath in kernel/locking/rwsem.c

In the Linux kernel 5.3.11, mounting a crafted btrfs image twice can cause an rwsem_down_write_slowpath use-after-free because (in rwsem_can_spin_on_owner in kernel/locking/rwsem.c) rwsem_owner_flags returns an already freed pointer,

When using the Azure backend with a shared access signature (SAS), Terraform versions prior to 0.12.17 may transmit the token and state snapshot using cleartext HTTP.

NLSSRV32.EXE in Nalpeiron Licensing Service 7.3.4.0, as used with Nitro PDF and other products, allows Elevation of Privilege via the \\.\mailslot\nlsX86ccMailslot mailslot.

GitLab EE 8.4 through 12.5, 12.4.3, and 12.3.6 stored several tokens in plaintext.

GitLab EE 12.3 through 12.5, 12.4.3, and 12.3.6 allows Denial of Service. Certain characters were making it impossible to create, edit, or view issues and commits.

GitLab EE 8.14 through 12.5, 12.4.3, and 12.3.6 has Incorrect Access Control. After a project changed to private, previously forked repositories were still able to get information about the private project through the API.

GitLab EE 8.14 through 12.5, 12.4.3, and 12.3.6 allows XSS in group and profile fields.

GitLab Enterprise Edition (EE) 9.0 and later through 12.5 allows Information Disclosure.

GitLab Enterprise Edition (EE) 8.90 and later through 12.5 has Incorrect Access Control.