Security Vulnerabilities - CVEs Published In 2021
grant table v2 status pages may remain accessible after de-allocation (take two) 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. This bug was fortuitously fixed by code cleanup in Xen 4.14, and backported to security-supported Xen branches as a prerequisite of the fix for XSA-378.
CVSS Score
7.0
EPSS Score
0.001
Published
2021-12-07
A stored Cross Site Scripting (XSS) vulnerability in Esri ArcGIS Server feature services versions 10.8.1 and 10.9 (only) feature services may allow a remote, unauthenticated attacker to pass and store malicious strings via crafted queries which when accessed could potentially execute arbitrary JavaScript code in the user’s browser.
CVSS Score
6.1
EPSS Score
0.005
Published
2021-12-07
livehelperchat is vulnerable to Cross-Site Request Forgery (CSRF)
CVSS Score
4.3
EPSS Score
0.001
Published
2021-12-07
A remote file inclusion vulnerability in the ArcGIS Server help documentation may allow a remote, unauthenticated attacker to inject attacker supplied html into a page.
CVSS Score
4.7
EPSS Score
0.003
Published
2021-12-07
A SQL injection vulnerability in feature services provided by Esri ArcGIS Server 10.9 and below allows a remote, unauthenticated attacker to impact the confidentiality, integrity and availability of targeted services via specifically crafted queries.
CVSS Score
7.3
EPSS Score
0.004
Published
2021-12-07
An information disclosure vulnerability in the ArcGIS Service Directory in Esri ArcGIS Enterprise versions 10.9.0 and below may allows a remote attacker to view hidden field names in feature layers. This issue may reveal field names, but not not disclose features.
CVSS Score
5.3
EPSS Score
0.013
Published
2021-12-07
World-writable permissions on the /tmp/tmate/sessions directory in tmate-ssh-server 2.3.0 allow a local attacker to compromise the integrity of session handling, or obtain the read-write session ID from a read-only session symlink in this directory.
CVSS Score
7.0
EPSS Score
0.0
Published
2021-12-07
Insecure creation of temporary directories in tmate-ssh-server 2.3.0 allows a local attacker to compromise the integrity of session handling.
CVSS Score
7.0
EPSS Score
0.0
Published
2021-12-07
Git-it through 4.4.0 allows OS command injection at the Branches Aren't Just For Birds challenge step. During the verification process, it attempts to run the reflog command followed by the current branch name (which is not sanitized for execution).
CVSS Score
9.8
EPSS Score
0.02
Published
2021-12-07
calibre before 5.32.0 contains a regular expression that is vulnerable to ReDoS (Regular Expression Denial of Service) in html_preprocess_rules in ebooks/conversion/preprocess.py.
CVSS Score
7.5
EPSS Score
0.007
Published
2021-12-07