NEWS > Lab
May 25, 2021
nginx DNS Resolver Off-by-One Heap Write Vulnerability
An off-by-one error in ngx_resolver_copy() while processing DNS responses allows a network attacker to write a dot character ('.', 0x2E) out of bounds in a heap allocated buffer.
May 03, 2021
QR Code reconstruction
Reconstructing a QR Code from partially censored images.
January 28, 2021
Advisory X41-2021-001: Multiple Vulnerabilities in YARA
Luis Merino of X41 discovered multiple vulnerabilities in YARA
December 21, 2020
Microsoft Exchange Remote Code Execution - CVE-2020-16875
The patch for CVE-2020-16875 in Microsoft Exchange can bypassed to gain remote code execution again.
September 22, 2020
Decompressing Xamarin DLLs
Solving a small decompression challenge during an audit