It was discovered that the C1 compiler in the Hotspot component of OpenJDK did not correctly apply an unsigned integer left shift to calculate the actual address offset under certain conditions. This could lead to an integer overflow and out-of-bounds array access, potentially corrupting the JVM memory.

An unspecified vulnerability in Java SE related to the Networking component could allow a remote attacker to cause high integrity impact.

A vulnerability was found in Linux Kernel. It has been declared as problematic. This vulnerability affects the function vsockconnect of the file net/vmwvsock/afvsock.c. The manipulation leads to memory leak. The complexity of an attack is rather high. The exploitation appears to be difficult. It is recommended to apply a patch to fix this issue. VDB-211930 is the identifier assigned to this vulnerability.

A vulnerability classified as problematic has been found in Linux Kernel. Affected is the function j1939sessiondestroy of the file net/can/j1939/transport.c. The manipulation leads to memory leak. It is recommended to apply a patch to fix this issue. The identifier of this vulnerability is VDB-211932.

A vulnerability has been found in Linux Kernel and classified as problematic. This vulnerability affects the function kcmtxwork of the file net/kcm/kcmsock.c of the component kcm. The manipulation leads to race condition. It is recommended to apply a patch to fix this issue. VDB-211018 is the identifier assigned to this vulnerability.

A flaw was found in the vhost-vsock device of QEMU. In case of error, an invalid element was not detached from the virtqueue before freeing its memory, leading to memory leakage and other unexpected results. Affected QEMU versions <= 6.2.0.

Certain optimizations on some Intel processors target “trivial data value” cache-lines, such as all-zero value cache-lines. Such optimizations may lead to changes in cache-allocation or write-back behavior for such cache-lines. It may be possible for a local attacker to distinguish some cases of trivial-data-cache-lines from non-trivial-data cache-lines by inferring cache state using cache timing methods.

Exiv2 is a C++ library and a command-line utility to read, write, delete and modify Exif, IPTC, XMP and ICC image metadata. An out-of-bounds read was found in Exiv2 versions v0.27.3 and earlier. Exiv2 is a command-line utility and C++ library for reading, writing, deleting, and modifying the metadata of image files. The out-of-bounds read is triggered when Exiv2 is used to write metadata into a crafted image file. An attacker could potentially exploit the vulnerability to cause a denial of service by crashing Exiv2, if they can trick the victim into running Exiv2 on a crafted image file. Note that this bug is only triggered when writing the metadata, which is a less frequently used Exiv2 operation than reading the metadata. For example, to trigger the bug in the Exiv2 command-line application, you need to add an extra command-line argument such as insert. The bug is fixed in version v0.27.4. Please see our security policy for information about Exiv2 security.

Last updated 24 July 2024

An integer overflow issue was found in the vmxnet3 NIC emulator of the QEMU for versions up to v5.2.0. It may occur if a guest was to supply invalid values for rx/tx queue size or other NIC parameters. A privileged guest user may use this flaw to crash the QEMU process on the host resulting in DoS scenario.

The sudoedit personality of Sudo before 1.9.5 may allow a local unprivileged user to perform arbitrary directory-existence tests by winning a sudoedit.c race condition in replacing a user-controlled directory by a symlink to an arbitrary path.

An issue was discovered in Xen through 4.14.x. Neither xenstore implementation does any permission checks when reporting a xenstore watch event. A guest administrator can watch the root xenstored node, which will cause notifications for every created, modified, and deleted key. A guest administrator can also use the special watches, which will cause a notification every time a domain is created and destroyed. Data may include: number, type, and domids of other VMs; existence and domids of driver domains; numbers of virtual interfaces, block devices, vcpus; existence of virtual framebuffers and their backend style (e.g., existence of VNC service); Xen VM UUIDs for other domains; timing information about domain creation and device setup; and some hints at the backend provisioning of VMs and their devices. The watch events do not contain values stored in xenstore, only key names. A guest administrator can observe non-sensitive domain and device lifecycle events relating to other guests. This information allows some insight into overall system configuration (including the number and general nature of other guests), and configuration of other guests (including the number and general nature of other guests' devices). This information might be commercially interesting or might make other attacks easier. There is not believed to be exposure of sensitive data. Specifically, there is no exposure of VNC passwords, port numbers, pathnames in host and guest filesystems, cryptographic keys, or within-guest data.

An issue was discovered in the Linux kernel before 5.7.3, related to mm/gup.c and mm/hugememory.c. The getuserpages (aka gup) implementation, when used for a copy-on-write page, does not properly consider the semantics of read operations and therefore can grant unintended write access, aka CID-17839856fd58.

An out-of-bounds read access issue was found in the ATAPI Emulator of QEMU. It occurs while processing ATAPI read command if logical block address(LBA) is set an invalid value. A guest user may use this flaw to crash the QEMU process on the host resulting in DoS scenario.

Upstream patch: --------------- -> https://lists.gnu.org/archive/html/qemu-devel/2021-01/msg04255.html -> https://git.qemu.org/?p=qemu.git;a=commit;h=813212288970c39b1800f63e83ac6e96588095c6

An unspecified vulnerability in Java SE related to the Libraries component could allow an unauthenticated attacker to cause no confidentiality impact, low integrity impact, and no availability impact.

Last updated 24 July 2024

A reachable assertion issue was found in the USB EHCI emulation code of QEMU. It could occur while processing USB requests due to missing handling of DMA memory map failure. A malicious privileged user within the guest may abuse this flaw to send bogus USB requests and crash the QEMU process on the host, resulting in a denial of service.

An assertion failure flaw was found in QEMU in the network packet processing component. This issue affects the "e1000e" and "vmxnet3" network devices. This flaw allows a malicious guest user or process to abort the QEMU process on the host, resulting in a denial of service.

A use-after-free issue was found in the INTEL 82574 NIC (e1000e) emulator of the QEMU. It could while sending packets if the guest user set the packet data address to e1000e's MMIO address. A guest user/process could use this flaw to crash the QEMU process on the host resulting in DoS scenario.

Upstream patch: ---------------- -> https://lists.gnu.org/archive/html/qemu-devel/2020-07/msg06147.html

Reference: ---------- -> https://bugs.launchpad.net/qemu/+bug/1886362

In QEMU 4.2.0, a MemoryRegionOps object may lack read/write callback methods, leading to a NULL pointer dereference.

In MediaWiki before 1.31.8, 1.32.x and 1.33.x before 1.33.4, and 1.34.x before 1.34.2, private wikis behind a caching server using the imgauth.php image authorization security feature may have had their files cached publicly, so any unauthorized user could view them. This occurs because Cache-Control and Vary headers were mishandled.

In affected versions of WordPress, when uploading themes, the name of the theme folder can be crafted in a way that could lead to JavaScript execution in /wp-admin on the themes page. This does require an admin to upload the theme, and is low severity self-XSS. This has been patched in version 5.4.2, along with all the previously affected versions via a minor release (5.3.4, 5.2.7, 5.1.6, 5.0.10, 4.9.15, 4.8.14, 4.7.18, 4.6.19, 4.5.22, 4.4.23, 4.3.24, 4.2.28, 4.1.31, 4.0.31, 3.9.32, 3.8.34, 3.7.34).

addressspacemap in exec.c in QEMU 4.2.0 can trigger a NULL pointer dereference related to BounceBuffer.

In FreeRDP after 1.0 and before 2.0.0, there is an out-of-bounds read. It only allows to abort a session. No data extraction is possible. This has been fixed in 2.0.0.

In FreeRDP greater than 1.2 and before 2.0.0, a double free in updatereadcachebitmapv3order crashes the client application if corrupted data from a manipulated server is parsed. This has been patched in 2.0.0.

An out-of-bounds read/write vulnerability was found in function Sm5012doperation() in hw/display/sm501.c. The OOB flaw is caused by an integer overflow in COPYAREA when the rtl parameter is set to 1, and either srcy or srcx is less than operationheight. Please refer to the following duplicate bug for further details: https://bugzilla.redhat.com/showbug.cgi?id=1786026.

Upstream fix: https://git.qemu.org/?p=qemu.git;a=commit;h=b15a22bbcbe6a78dc3d88fe3134985e4cdd87de4

An insufficient policy enforcement flaw was found in the downloads component of the Chromium browser.

Upstream bug(s):

https://code.google.com/p/chromium/issues/detail?id=100421

External References:

https://chromereleases.googleblog.com/2019/12/stable-channel-update-for-desktop.html

An unspecified vulnerability in Java SE related to the Networking component could allow an unauthenticated attacker to cause a denial of service resulting in a low availability impact using unknown attack vectors.