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Two security vulnerabilities have been disclosed in the Mailcow open-source mail server suite that could be exploited by malicious actors to achieve arbitrary code execution on susceptible instances. Both shortcomings impact all versions of the software prior to version 2024-04, which was released on April 4, 2024. The issues were responsibly disclosed by SonarSource on March 22, 2024. The flaws

Cops decimate cybercrime infrastructure used to steal data from nearly 2,000 people in Singapore last year.

The consortium of private companies and academia will focus on ways to protect hardware memory from attacks.

The US passenger rail giant said attackers used previously compromised credentials to crack accounts and access a freight train of personal data.

Timing variability of any kind is problematic when working with potentially secret values such as elliptic curve scalars, and such issues can potentially leak private keys and other secrets. Such a problem was recently discovered in `curve25519-dalek`. The `Scalar29::sub` (32-bit) and `Scalar52::sub` (64-bit) functions contained usage of a mask value inside a loop where LLVM saw an opportunity to insert a branch instruction (`jns` on x86) to conditionally bypass this code section when the mask value is set to zero as can be seen in godbolt: - 32-bit (see L106): https://godbolt.org/z/zvaWxzvqv - 64-bit (see L48): https://godbolt.org/z/PczYj7Pda A similar problem was recently discovered in the Kyber reference implementation: https://groups.google.com/a/list.nist.gov/g/pqc-forum/c/hqbtIGFKIpU/m/cnE3pbueBgAJ As discussed on that thread, one portable solution, which is also used in this PR, is to introduce a volatile read as an optimization barrier, which prevents the compiler from op...

The cURL wrapper in Moodle retained the original request headers when following redirects, so HTTP authorization header information could be unintentionally sent in requests to redirect URLs.

Insufficient capability checks meant it was possible for users to gain access to BigBlueButton join URLs they did not have permission to access.

A unique key should be generated for a user's QR login key and their auto-login key, so the same key cannot be used interchangeably between the two.

Insufficient escaping of calendar event titles resulted in a stored XSS risk in the event deletion prompt.

Incorrect CSRF token checks resulted in multiple CSRF risks.