Security Vulnerabilities - CVEs Published In November 2021
Insufficient validation of guest context in the SNP Firmware could lead to a potential loss of guest confidentiality.
CVSS Score
5.5
EPSS Score
0.001
Published
2021-11-16
Failure to flush the Translation Lookaside Buffer (TLB) of the I/O memory management unit (IOMMU) may lead an IO device to write to memory it should not be able to access, resulting in a potential loss of integrity.
CVSS Score
5.5
EPSS Score
0.0
Published
2021-11-16
Persistent platform private key may not be protected with a random IV leading to a potential “two time pad attack”.
CVSS Score
7.5
EPSS Score
0.004
Published
2021-11-16
Failure to validate VM_HSAVE_PA during SNP_INIT may result in a loss of memory integrity.
CVSS Score
7.8
EPSS Score
0.0
Published
2021-11-16
AMD System Management Unit (SMU) may experience an integer overflow when an invalid length is provided which may result in a potential loss of resources.
CVSS Score
5.5
EPSS Score
0.001
Published
2021-11-16
Improper access controls in System Management Unit (SMU) may allow for an attacker to override performance control tables located in DRAM resulting in a potential lack of system resources.
CVSS Score
7.5
EPSS Score
0.003
Published
2021-11-16
Kirby is an open source file structured CMS ### Impact Kirby's writer field stores its formatted content as HTML code. Unlike with other field types, it is not possible to escape HTML special characters against cross-site scripting (XSS) attacks, otherwise the formatting would be lost. If the user is logged in to the Panel, a harmful script can for example trigger requests to Kirby's API with the permissions of the victim. Because the writer field did not securely sanitize its contents on save, it was possible to inject malicious HTML code into the content file by sending it to Kirby's API directly without using the Panel. This malicious HTML code would then be displayed on the site frontend and executed in the browsers of site visitors and logged in users who are browsing the site. Attackers must be in your group of authenticated Panel users in order to exploit this weakness. Users who do not make use of the writer field are not affected. This issue has been patched in Kirby 3.5.8 by sanitizing all writer field contents on the backend whenever the content is modified via Kirby's API. Please update to this or a later version to fix the vulnerability.
CVSS Score
7.3
EPSS Score
0.003
Published
2021-11-16
Kirby is an open source file structured CMS. In affected versions Kirby's blocks field stores structured data for each block. This data is then used in block snippets to convert the blocks to HTML for use in your templates. We recommend to escape HTML special characters to protect against cross-site scripting (XSS) attacks. The default snippet for the image block unfortunately did not use our escaping helper. This made it possible to include malicious HTML code in the source, alt and link fields of the image block, which would then be displayed on the site frontend and executed in the browsers of site visitors and logged in users who are browsing the site. Attackers must be in your group of authenticated Panel users in order to exploit this weakness. Users who do not make use of the blocks field are not affected. This issue has been patched in Kirby version 3.5.8 by escaping special HTML characters in the output from the default image block snippet. Please update to this or a later version to fix the vulnerability.
CVSS Score
7.3
EPSS Score
0.004
Published
2021-11-16
The Interior Server and Gateway Server components of TIBCO Software Inc.'s TIBCO PartnerExpress contain an easily exploitable vulnerability that allows an unauthenticated attacker with network access to obtain session tokens for the affected system. A successful attack using this vulnerability requires human interaction from a person other than the attacker. Affected releases are TIBCO Software Inc.'s TIBCO PartnerExpress: versions 6.2.1 and below.
CVSS Score
7.5
EPSS Score
0.004
Published
2021-11-16
The Interior Server and Gateway Server components of TIBCO Software Inc.'s TIBCO PartnerExpress contain easily exploitable Stored and Reflected Cross Site Scripting (XSS) vulnerabilities that allow a low privileged attacker to social engineer a legitimate user with network access to execute scripts targeting the affected system or the victim's local system. A successful attack using this vulnerability requires human interaction from a person other than the attacker. Affected releases are TIBCO Software Inc.'s TIBCO PartnerExpress: versions 6.2.1 and below.
CVSS Score
9.0
EPSS Score
0.003
Published
2021-11-16