In rfb/CSecurityTLS.cxx and rfb/CSecurityTLS.java in TigerVNC before 1.11.0, viewers mishandle TLS certificate exceptions. They store the certificates as authorities, meaning that the owner of a certificate could impersonate any server after a client had added an exception. (CVE-2020-26117)
In PHP versions 7.2.x when PHP is processing incoming HTTP cookie values, the cookie names are url-decoded. This may lead to cookies with prefixes like __Host confused with cookies that decode to such prefix, thus leading to an attacker being able to forge cookie which is supposed to be secure. (CVE-2020-7070)
NULL Pointer Dereference that leads to arbitrary code execution in the context of the current user. (CVE-2020-9746) References: - https://bugs.mageia.org/show_bug.cgi?id=27432
A buffer overflow exists in the Brotli library versions prior to 1.0.8 where an attacker controlling the input length of a "one-shot" decompression request to a script can trigger a crash, which happens when copying over chunks of data larger than 2 GiB (CVE-2020-8927).
The TCP dissector could crash (CVE-2020-25862). The MIME Multipart dissector could crash (CVE-2020-25863). The BLIP dissector could crash (CVE-2020-25866).
A vulnerability was discovered where an attacker can cause an XSS attack through the transformation feature. If an attacker sends a crafted link to the victim with the malicious JavaScript, when the victim clicks on the link, the JavaScript will run and complete the instructions made by the attacker. (CVE-2020-26934)
This update fixes CVE-2020-15180 References: - https://bugs.mageia.org/show_bug.cgi?id=27375 - https://mariadb.com/kb/en/mariadb-10325-release-notes/
Multiple security issues were discovered in MediaWiki: SpecialUserRights could leak whether a user existed or not, multiple code paths lacked HTML sanitisation allowing for cross-site scripting and TOTP validation applied insufficient rate limiting against brute force attempts (CVE-2020-25812, CVE-2020-25813, CVE-2020-25814, CVE-2020-25815, CVE-2020-25827,
When Samba is used as a domain controller, an unauthenticated attacker on the network can gain administrator access by exploiting a netlogon protocol flaw (CVE-2020-1472). Note that Samba installations are not vulnerable unless they have the smb.conf
An issue was discovered in GnuTLS before 3.6.15. A server can trigger a NULL pointer dereference in a TLS 1.3 client if a no_renegotiation alert is sent with unexpected timing, and then an invalid second handshake occurs. The crash happens in the application's error handling path, where the gnutls_deinit function is called after detecting a handshake failure (CVE-2020-24659).
AppCache manifest poisoning due to url encoded character processing (CVE-2020-12415). Use-after-free in WebRTC VideoBroadcaster (CVE-2020-12416).
Mozilla developer Jason Kratzer reported memory safety bugs present in Firefox ESR 78.2. Some of these bugs showed evidence of memory corruption and we presume that with enough effort some of these could have been exploited to run arbitrary code (CVE-2020-15673).
The mount.cifs utility has a shell injection issue where one can embed shell commands via the username mount option. Those commands will be run via popen() in the context of the user calling mount (CVE-2020-14342). References:
An issue has been found in PowerDNS Authoritative Server before 4.3.1 where an authorized user with the ability to insert crafted records into a zone might be able to leak the content of uninitialized memory. Such a user could be a customer inserting data via a control panel, or somebody with access to the REST API. Crafted records cannot be inserted via AXFR (CVE-2020-17482).
An XSS vulnerability was discovered in noVNC before 0.6.2 in which the remote VNC server could inject arbitrary HTML into the noVNC web page via the messages propagated to the status field, such as the VNC server name. (CVE-2017-18635) References:
url::recvline in url.cpp in libproxy 0.4.x through 0.4.15 allows a remote HTTP server to trigger uncontrolled recursion via a response composed of an infinite stream that lacks a newline character. This leads to stack exhaustion. (CVE-2020-25219)
The nodejs package has been updated to the latest version in the 10.x branch, which is 10.22.1 at this time. It fixes several security issues and other bugs. See the upstream changelog and advisories for details. References:
fishProtocol::establishConnection in fish/fish.cpp in KDE kio-extras through 20.04.0 makes a cacheAuthentication call even if the user had not set the keepPassword option. This may lead to unintended KWallet storage of the password (CVE-2020-12755).
mbedtls 2.16.8 fixes three security vulnerabilities which could affect earlier releases: Local side channel attack on classical CBC decryption in (D)TLS (CVE-2020-16150).
A flaw was found in the mysql-connector-java package. A complicated attack against the mysql Connector/J allows attackers on the local network to interfere with a user's connection and insert unauthorized SQL commands (CVE-2020-2934).
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