Crypt::NaCl::Sodium versions through 2.001 for Perl has an integer overflow flaw on 32-bit systems.
Sodium.xs casts a STRLEN (size_t) to unsigned long long when passing a length pointer to libsodium functions. On 32-bit systems size_t is typically 32-bits while an unsigned long long is at least 64-bits.
Attack Parameters
Attack Vector
Network
Can be exploited remotely
Attack Complexity
Low
Easy to exploit
Privileges Required
None
No privileges needed
User Interaction
None
No user interaction needed
Impact Assessment
Confidentiality
None
No data leak
Integrity
High
Complete data modification
Availability
High
Complete denial of service
CVSS Vector v3.1
Weakness Type (CWE)
References 3
https://github.com/cpan-authors/crypt-nacl-sodium/commit/557388bdb4da416a56663c…
9b29abf9-4ab0-4765-b253-1875cd9b441e
https://github.com/cpan-authors/crypt-nacl-sodium/commit/8cf7f66ba922443e131c9d…
9b29abf9-4ab0-4765-b253-1875cd9b441e
https://metacpan.org/release/TIMLEGGE/Crypt-NaCl-Sodium-2.001/source/Sodium.xs#…
9b29abf9-4ab0-4765-b253-1875cd9b441e