Security Vulnerabilities - CVEs Published In August 2021
IOMMU page mapping issues on x86 T[his CNA information record relates to multiple CVEs; the text explains which aspects/vulnerabilities correspond to which CVE.] Both AMD and Intel allow ACPI tables to specify regions of memory which should be left untranslated, which typically means these addresses should pass the translation phase unaltered. While these are typically device specific ACPI properties, they can also be specified to apply to a range of devices, or even all devices. On all systems with such regions Xen failed to prevent guests from undoing/replacing such mappings (CVE-2021-28694). On AMD systems, where a discontinuous range is specified by firmware, the supposedly-excluded middle range will also be identity-mapped (CVE-2021-28695). Further, on AMD systems, upon de-assigment of a physical device from a guest, the identity mappings would be left in place, allowing a guest continued access to ranges of memory which it shouldn't have access to anymore (CVE-2021-28696).
CVSS Score
6.8
EPSS Score
0.001
Published
2021-08-27
grant table v2 status pages may remain accessible after de-allocation Guest get permitted access to certain Xen-owned pages of memory. The majority of such pages remain allocated / associated with a guest for its entire lifetime. Grant table v2 status pages, however, get de-allocated when a guest switched (back) from v2 to v1. The freeing of such pages requires that the hypervisor know where in the guest these pages were mapped. The hypervisor tracks only one use within guest space, but racing requests from the guest to insert mappings of these pages may result in any of them to become mapped in multiple locations. Upon switching back from v2 to v1, the guest would then retain access to a page that was freed and perhaps re-used for other purposes.
CVSS Score
7.8
EPSS Score
0.0
Published
2021-08-27
long running loops in grant table handling In order to properly monitor resource use, Xen maintains information on the grant mappings a domain may create to map grants offered by other domains. In the process of carrying out certain actions, Xen would iterate over all such entries, including ones which aren't in use anymore and some which may have been created but never used. If the number of entries for a given domain is large enough, this iterating of the entire table may tie up a CPU for too long, starving other domains or causing issues in the hypervisor itself. Note that a domain may map its own grants, i.e. there is no need for multiple domains to be involved here. A pair of "cooperating" guests may, however, cause the effects to be more severe.
CVSS Score
5.5
EPSS Score
0.0
Published
2021-08-27
inadequate grant-v2 status frames array bounds check The v2 grant table interface separates grant attributes from grant status. That is, when operating in this mode, a guest has two tables. As a result, guests also need to be able to retrieve the addresses that the new status tracking table can be accessed through. For 32-bit guests on x86, translation of requests has to occur because the interface structure layouts commonly differ between 32- and 64-bit. The translation of the request to obtain the frame numbers of the grant status table involves translating the resulting array of frame numbers. Since the space used to carry out the translation is limited, the translation layer tells the core function the capacity of the array within translation space. Unfortunately the core function then only enforces array bounds to be below 8 times the specified value, and would write past the available space if enough frame numbers needed storing.
CVSS Score
5.5
EPSS Score
0.0
Published
2021-08-27
xen/arm: No memory limit for dom0less domUs The dom0less feature allows an administrator to create multiple unprivileged domains directly from Xen. Unfortunately, the memory limit from them is not set. This allow a domain to allocate memory beyond what an administrator originally configured.
CVSS Score
4.9
EPSS Score
0.003
Published
2021-08-27
SQL Injection vulnerability in cxuucms 3.1 ivia the pid parameter in public/admin.php.
CVSS Score
7.2
EPSS Score
0.003
Published
2021-08-27
Multiple Cross Site Scripting (XSS) vulneratiblities exist in Cacti 1.2.12 in (1) reports_admin.php, (2) data_queries.php, (3) data_input.php, (4) graph_templates.php, (5) graphs.php, (6) reports_admin.php, and (7) data_input.php.
CVSS Score
6.1
EPSS Score
0.013
Published
2021-08-27
OpenMage Magento LTS is an alternative to the Magento CE official releases. Prior to versions 19.4.15 and 20.0.11, layout XML enabled admin users to execute arbitrary commands via block methods. The latest OpenMage Versions up from v19.4.15 and v20.0.11 have this Issue patched.
CVSS Score
7.2
EPSS Score
0.005
Published
2021-08-27
This affects the package object-path before 0.11.6. A type confusion vulnerability can lead to a bypass of CVE-2020-15256 when the path components used in the path parameter are arrays. In particular, the condition currentPath === '__proto__' returns false if currentPath is ['__proto__']. This is because the === operator returns always false when the type of the operands is different.
CVSS Score
5.6
EPSS Score
0.001
Published
2021-08-27
IBM Maximo Asset Management 7.6.0 and 7.6.1 is vulnerable to cross-site scripting. This vulnerability allows users to embed arbitrary JavaScript code in the Web UI thus altering the intended functionality potentially leading to credentials disclosure within a trusted session. IBM X-Force ID: 201694.
CVSS Score
5.4
EPSS Score
0.002
Published
2021-08-27