CVSS 7.5 · High EPSS 0,42%
Kerentanan Integer Underflow (Wrap or Wraparound) pada erlang/otp, erlang erts. Skor CVSS 3.1 7.5 (High) menurut NVD.
Integer Underflow (Wrap or Wraparound) vulnerability in erlang otp erlang/otp (erts modules), erlang otp erts (erts modules) allows Forced Integer Overflow, Excessive Allocation. This vulnerability is associated with program files erts/emulator/beam/external.c, emulator/beam/external.c. The BIT_BINARY_EXT tag (77) handler in the External Term Format (ETF) decoder accepts an encoding with both length and trailing-bits fields set to zero. The subsequent computation of the bitstring size underflows an unsigned integer, producing a value of roughly 2^64 that is then passed as a memory allocation size. The allocator aborts the entire node with a message such as "Cannot allocate 2305843009213693951 bytes of memory (of type binary)". The crash is a VM-level abort, not an Erlang-level exception. It cannot be intercepted by supervision trees, by try/catch, or by passing the [safe] option to binary_to_term/2 (which only restricts atom creation and does not perform structural validation of binary encodings). Any application that decodes ETF from untrusted sources via binary_to_term/1,2 or enif_binary_to_term() is exposed. The Erlang distribution protocol also decodes incoming terms through the same code path, but distribution is expected to run on trusted networks per the OTP Secure Coding Guidelines (DSG-011). This issue affects OTP from OTP 27.0 before OTP 29.0.4, OTP 28.5.0.4 and OTP 27.3.4.15, corresponding to erts from 15.0 before 17.0.4, 16.4.0.4 and 15.2.7.11.
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
· uraikan di kalkulator | Vendor | Produk | Versi terdampak |
|---|---|---|
| erlang | erlang/otp | Versi 27.0 hingga sebelum 27.3.4.15 |
| erlang | erlang/otp | Versi 28.0 hingga sebelum 28.5.0.4 |
| erlang | erlang/otp | Versi 29.0 hingga sebelum 29.0.4 |
| erlang | erts | Versi 15.0 hingga sebelum 15.2.7.11 |
| erlang | erts | Versi 16.0 hingga sebelum 16.4.0.4 |
| erlang | erts | Versi 17.0 hingga sebelum 17.0.4 |