In drivers/target/target_core_xcopy.c in the Linux kernel before 5.10.7 insufficient identifier checking in the LIO SCSI target code can be used by remote attackers to read or write files via directory traversal in an XCOPY request aka CID-2896c93811e3. For example an attack can occur over a network if the attacker has access to one iSCSI LUN. The attacker gains control over file access because I/O operations are proxied via an attacker-selected backstore.

The Sieve engine in Dovecot before 2.3.15 allows Uncontrolled Resource Consumption as demonstrated by a situation with a complex regular expression for the regex extension.

MIT Kerberos 5 (aka krb5) before 1.17.2 and 1.18.x before 1.18.3 allows unbounded recursion via an ASN.1-encoded Kerberos message because the lib/krb5/asn.1/asn1_encode.c support for BER indefinite lengths lacks a recursion limit.

libdwarf before 20201201 allows a dwarf_print_lines.c NULL pointer dereference and application crash via a DWARF5 line-table header that has an invalid FORM for a pathname.

Chromium CVE-2020-27844: Heap buffer overflow in OpenJPEG

A flaw was found in multiple versions of OpenvSwitch. Specially crafted LLDP packets can cause memory to be lost when allocating data to handle specific optional TLVs potentially causing a denial of service. The highest threat from this vulnerability is to system availability.

A flaw was found in the memory management API of QEMU during the initialization of a memory region cache. This issue could lead to an out-of-bounds write access to the MSI-X table while performing MMIO operations. A guest user may abuse this flaw to crash the QEMU process on the host resulting in a denial of service. This flaw affects QEMU versions prior to 5.2.0.