| CVE |
Vendors |
Products |
Updated |
CVSS v3.1 |
| ChaCha20-Poly1305 is an AEAD cipher, and requires a unique nonce input for every encryption operation. RFC 7539 specifies that the nonce value (IV) should be 96 bits (12 bytes). OpenSSL allows a variable nonce length and front pads the nonce with 0 bytes if it is less than 12 bytes. However it also incorrectly allows a nonce to be set of up to 16 bytes. In this case only the last 12 bytes are significant and any additional leading bytes are ignored. It is a requirement of using this cipher that nonce values are unique. Messages encrypted using a reused nonce value are susceptible to serious confidentiality and integrity attacks. If an application changes the default nonce length to be longer than 12 bytes and then makes a change to the leading bytes of the nonce expecting the new value to be a new unique nonce then such an application could inadvertently encrypt messages with a reused nonce. Additionally the ignored bytes in a long nonce are not covered by the integrity guarantee of this cipher. Any application that relies on the integrity of these ignored leading bytes of a long nonce may be further affected. Any OpenSSL internal use of this cipher, including in SSL/TLS, is safe because no such use sets such a long nonce value. However user applications that use this cipher directly and set a non-default nonce length to be longer than 12 bytes may be vulnerable. OpenSSL versions 1.1.1 and 1.1.0 are affected by this issue. Due to the limited scope of affected deployments this has been assessed as low severity and therefore we are not creating new releases at this time. Fixed in OpenSSL 1.1.1c (Affected 1.1.1-1.1.1b). Fixed in OpenSSL 1.1.0k (Affected 1.1.0-1.1.0j). |
| A spoofing vulnerability exists when a Skype for Business Server does not properly sanitize a specially crafted request, aka 'Skype for Business Server Spoofing Vulnerability'. |
| An information disclosure vulnerability exists when the Windows Remote Desktop Protocol (RDP) fails to properly handle objects in memory, aka 'Remote Desktop Protocol Information Disclosure Vulnerability'. |
| A security feature bypass vulnerability exists when Microsoft Defender improperly handles specific buffers, aka 'Microsoft Defender Security Feature Bypass Vulnerability'. |
| An information disclosure vulnerability in Android Apps using Microsoft Authentication Library (MSAL) 0.3.1-Alpha or later exists under specific conditions, aka 'Microsoft Authentication Library for Android Information Disclosure Vulnerability'. |
| A spoofing vulnerability exists in Visual Studio Live Share when a guest connected to a Live Share session is redirected to an arbitrary URL specified by the session host, aka 'Visual Studio Live Share Spoofing Vulnerability'. |
| A remote code execution vulnerability exists in the way that the VBScript engine handles objects in memory, aka 'VBScript Remote Code Execution Vulnerability'. |
| A remote code execution vulnerability exists when Microsoft Windows OLE fails to properly validate user input, aka 'Windows OLE Remote Code Execution Vulnerability'. |
| An elevation of privilege vulnerability exists when the Windows AppX Deployment Server improperly handles junctions.To exploit this vulnerability, an attacker would first have to gain execution on the victim system, aka 'Windows Elevation of Privilege Vulnerability'. This CVE ID is unique from CVE-2019-1476. |
| An information disclosure vulnerability exists in Windows Media Player when it fails to properly handle objects in memory, aka 'Windows Media Player Information Disclosure Vulnerability'. This CVE ID is unique from CVE-2019-1480. |
| An information disclosure vulnerability exists in Windows Media Player when it fails to properly handle objects in memory, aka 'Windows Media Player Information Disclosure Vulnerability'. This CVE ID is unique from CVE-2019-1481. |
| An elevation of privilege vulnerability exists when Windows improperly handles COM object creation, aka 'Windows COM Server Elevation of Privilege Vulnerability'. |
| An elevation of privilege vulnerability exists when the Windows Printer Service improperly validates file paths while loading printer drivers, aka 'Windows Printer Service Elevation of Privilege Vulnerability'. |
| An elevation of privilege vulnerability exists when Windows AppX Deployment Service (AppXSVC) improperly handles hard links, aka 'Windows Elevation of Privilege Vulnerability'. This CVE ID is unique from CVE-2019-1483. |
| An information disclosure vulnerability exists when the Windows kernel improperly handles objects in memory, aka 'Windows Kernel Information Disclosure Vulnerability'. This CVE ID is unique from CVE-2019-1472. |
| An information disclosure vulnerability exists when the Windows kernel improperly handles objects in memory, aka 'Windows Kernel Information Disclosure Vulnerability'. This CVE ID is unique from CVE-2019-1474. |
| A remote code execution vulnerability exists when Windows Hyper-V on a host server fails to properly validate input from an authenticated user on a guest operating system, aka 'Windows Hyper-V Remote Code Execution Vulnerability'. |
| An information disclosure vulnerability exists when Windows Hyper-V on a host operating system fails to properly validate input from an authenticated user on a guest operating system, aka 'Windows Hyper-V Information Disclosure Vulnerability'. |
| An information disclosure vulnerability exists when the win32k component improperly provides kernel information, aka 'Win32k Information Disclosure Vulnerability'. |
| A remote code execution vulnerability exists when the Windows font library improperly handles specially crafted embedded fonts, aka 'Win32k Graphics Remote Code Execution Vulnerability'. |
