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CVE-2020-27828

jasper: Heap-based buffer overflow in cp_create() in jpc_enc.c

There's a flaw in jasper's jpc encoder in versions prior to 2.0.23. Crafted input provided to jasper by an attacker could cause an arbitrary out-of-bounds write. This could potentially affect data confidentiality, integrity, or application availability.

CVSS 3.1 · 7.8 High EPSS 1.4% KEV · Not listed
CVE-2020-27826

keycloak: Account REST API can update user metadata attributes

A flaw was found in Keycloak before version 12.0.0 where it is possible to update the user's metadata attributes using Account REST API. This flaw allows an attacker to change its own NameID attribute to impersonate the admin user for any particular application.

CVSS 3.1 · 4.2 Medium EPSS < 1% KEV · Not listed
Vendors
CVE-2020-27825

kernel: use-after-free in the ftrace ring buffer resizing logic due to a race condition

A use-after-free flaw was found in kernel/trace/ring_buffer.c in Linux kernel (before 5.10-rc1). There was a race problem in trace_open and resize of cpu buffer running parallely on different cpus, may cause a denial of service problem (DOS). This flaw could even allow a local attacker with special user privilege to a kernel information leak threat.

CVSS 3.1 · 5.7 Medium EPSS < 1% KEV · Not listed
Vendors
Debian Linux Netapp and 1 more
Products
CVE-2020-27824

openjpeg: global-buffer-overflow read in opj_dwt_calc_explicit_stepsizes()

A flaw was found in OpenJPEG’s encoder in the opj_dwt_calc_explicit_stepsizes() function. This flaw allows an attacker who can supply crafted input to decomposition levels to cause a buffer overflow. The highest threat from this vulnerability is to system availability.

CVSS 3.1 · 5.5 Medium EPSS 1.5% KEV · Not listed
Vendors
Products
CVE-2020-27823

openjpeg: heap-buffer-overflow write in opj_tcd_dc_level_shift_encode()

A flaw was found in OpenJPEG’s encoder. This flaw allows an attacker to pass specially crafted x,y offset input to OpenJPEG to use during encoding. The highest threat from this vulnerability is to confidentiality, integrity, as well as system availability.

CVSS 3.1 · 7.8 High EPSS 1.1% KEV · Not listed
Vendors
Products
CVE-2020-27822

wildfly: Potential Memory leak in Wildfly when using OpenTracing

A flaw was found in Wildfly affecting versions 19.0.0.Final, 19.1.0.Final, 20.0.0.Final, 20.0.1.Final, and 21.0.0.Final. When an application uses the OpenTracing API's java-interceptors, there is a possibility of a memory leak. This flaw allows an attacker to impact the availability of the server. The highest threat from this vulnerability is to system availability.

CVSS 3.1 · 5.9 Medium EPSS 1.1% KEV · Not listed
Vendors
CVE-2020-27821

QEMU: heap buffer overflow in msix_table_mmio_write() in hw/pci/msix.c

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.

CVSS 3.1 · 6.0 Medium EPSS < 1% KEV · Not listed
Vendors
CVE-2020-27820

kernel: use-after-free in nouveau kernel module

A vulnerability was found in Linux kernel, where a use-after-frees in nouveau's postclose() handler could happen if removing device (that is not common to remove video card physically without power-off, but same happens if "unbind" the driver).

CVSS 3.1 · 4.7 Medium EPSS < 1% KEV · Not listed
Vendors
CVE-2020-27819

An issue was discovered in libxls before and including 1.6.1 when reading Microsoft Excel files. A NULL pointer dereference vulnerability exists when parsing XLS cells in libxls/xls2csv.c:199. It could allow a remote attacker to cause a denial of service via crafted XLS file.

CVSS 3.1 · 5.5 Medium EPSS < 1% KEV · Not listed
Vendors
Products
CVE-2020-27816

openshift/elasticsearch-operator: arbitrary URL redirection of the cluster logging kibana console

The elasticsearch-operator does not validate the namespace where kibana logging resource is created and due to that it is possible to replace the original openshift-logging console link (kibana console) to different one, created based on the new CR for the new kibana resource. This could lead to an arbitrary URL redirection or the openshift-logging console link damage. This flaw affects elasticsearch-operator-container versions before 4.7.

CVSS 3.1 · 6.1 Medium EPSS < 1% KEV · Not listed
Vendors
CVE-2020-27815

kernel: Array index out of bounds access when setting extended attributes on journaling filesystems.

A flaw was found in the JFS filesystem code in the Linux Kernel which allows a local attacker with the ability to set extended attributes to panic the system, causing memory corruption or escalating privileges. The highest threat from this vulnerability is to confidentiality, integrity, as well as system availability.

CVSS 3.1 · 7.8 High EPSS < 1% KEV · Not listed
Vendors
Products
CVE-2020-27814

openjpeg: heap-buffer-overflow in lib/openjp2/mqc.c could result in DoS

A heap-buffer overflow was found in the way openjpeg2 handled certain PNG format files. An attacker could use this flaw to cause an application crash or in some cases execute arbitrary code with the permission of the user running such an application.

CVSS 3.1 · 7.8 High EPSS 2.0% KEV · Not listed
CVE-2020-27813

golang-github-gorilla-websocket: integer overflow leads to denial of service

An integer overflow vulnerability exists with the length of websocket frames received via a websocket connection. An attacker would use this flaw to cause a denial of service attack on an HTTP Server allowing websocket connections.

CVSS 3.1 · 7.5 High EPSS 2.2% KEV · Not listed
CVE-2020-27795

A segmentation fault was discovered in radare2 with adf command. In libr/core/cmd_anal.c, when command "adf" has no or wrong argument, anal_fcn_data (core, input + 1) --> RAnalFunction *fcn = r_anal_get_fcn_in (core->anal, core->offset, -1); returns null pointer for fcn causing segmentation fault later in ensure_fcn_range (fcn).

CVSS 3.1 · 7.5 High EPSS 1.6% KEV · Not listed
Vendors
Products
CVE-2020-27794

A double free issue was discovered in radare2 in cmd_info.c:cmd_info(). Successful exploitation could lead to modification of unexpected memory locations and potentially causing a crash.

CVSS 3.1 · 9.1 Critical EPSS 1.1% KEV · Not listed
Vendors
Products
CVE-2020-27793

An off-by-one overflow flaw was found in radare2 due to mismatched array length in core_java.c. This could allow an attacker to cause a crash, and perform a denail of service attack.

CVSS 3.1 · 7.5 High EPSS 1.2% KEV · Not listed
Vendors
Products
CVE-2020-27786

kernel: use-after-free in kernel midi subsystem

A flaw was found in the Linux kernel’s implementation of MIDI, where an attacker with a local account and the permissions to issue ioctl commands to midi devices could trigger a use-after-free issue. A write to this specific memory while freed and before use causes the flow of execution to change and possibly allow for memory corruption or privilege escalation. The highest threat from this vulnerability is to confidentiality, integrity, as well as system availability.

CVSS 3.1 · 7.8 High EPSS 1.7% KEV · Not listed
Vendors
CVE-2020-27784

kernel: deallocated instance in printer_ioctl() printer_ioctl() tries to access lock_printer_io of the printer_dev instance

A vulnerability was found in the Linux kernel, where accessing a deallocated instance in printer_ioctl() printer_ioctl() tries to access of a printer_dev instance. However, use-after-free arises because it had been freed by gprinter_free().

CVSS 3.1 · 5.5 Medium EPSS < 1% KEV · Not listed
Vendors
Products
CVE-2020-27782

undertow: special character in query results in server errors

A flaw was found in the Undertow AJP connector. Malicious requests and abrupt connection closes could be triggered by an attacker using query strings with non-RFC compliant characters resulting in a denial of service. The highest threat from this vulnerability is to system availability. This affects Undertow 2.1.5.SP1, 2.0.33.SP2, and 2.2.3.SP1.

CVSS 3.1 · 7.5 High EPSS 1.4% KEV · Not listed
Vendors