Commit Graph

4481 Commits

Author SHA1 Message Date
Manuel Pégourié-Gonnard
aed00f7bf7 Merge remote-tracking branch 'restricted/pr/417' into mbedtls-2.1-restricted
* restricted/pr/417:
  RSA PSS: remove redundant check; changelog
  RSA PSS: fix first byte check for keys of size 8N+1
  RSA PSS: fix minimum length check for keys of size 8N+1
  RSA: Fix another buffer overflow in PSS signature verification
  RSA: Fix buffer overflow in PSS signature verification
2017-11-23 12:13:49 +01:00
Manuel Pégourié-Gonnard
ea0aa655f6 Merge branch 'mbedtls-2.1' into mbedtls-2.1-restricted
* mbedtls-2.1:
  Fix typo in asn1.h
  Improve leap year test names in x509parse.data
  Correctly handle leap year in x509_date_is_valid()
  Renegotiation: Add tests for SigAlg ext parsing
  Parse Signature Algorithm ext when renegotiating
  Fix changelog for ssl_server2.c usage fix
  Fix ssl_server2 sample application prompt
  Update ChangeLog for fix to #836
  Enhance documentation of ssl_write_hostname_ext, adapt ChangeLog.
  Enhance documentation of mbedtls_ssl_set_hostname
  Add test case calling ssl_set_hostname twice
  Make mbedtls_ssl_set_hostname safe to be called multiple times
  Fix typo in configs/README.txt file
2017-11-14 08:38:52 +01:00
Gilles Peskine
9745cfd87d RSA PSS: remove redundant check; changelog
Remove a check introduced in the previous buffer overflow fix with keys of
size 8N+1 which the subsequent fix for buffer start calculations made
redundant.

Added a changelog entry for the buffer start calculation fix.
2017-10-23 14:49:43 +02:00
Gilles Peskine
31a2d14b92 RSA PSS: fix first byte check for keys of size 8N+1
For a key of size 8N+1, check that the first byte after applying the
public key operation is 0 (it could have been 1 instead). The code was
incorrectly doing a no-op check instead, which led to invalid
signatures being accepted. Not a security flaw, since you would need the
private key to craft such an invalid signature, but a bug nonetheless.
2017-10-19 15:43:53 +02:00
Gilles Peskine
9e2058281d RSA PSS: fix minimum length check for keys of size 8N+1
The check introduced by the previous security fix was off by one. It
fixed the buffer overflow but was not compliant with the definition of
PSS which technically led to accepting some invalid signatures (but
not signatures made without the private key).
2017-10-18 19:06:50 +02:00
Gilles Peskine
d0cd855145 RSA: Fix another buffer overflow in PSS signature verification
Fix buffer overflow in RSA-PSS signature verification when the masking
operation results in an all-zero buffer. This could happen at any key size.
2017-10-17 19:19:55 +02:00
Gilles Peskine
5c3247120f RSA: Fix buffer overflow in PSS signature verification
Fix buffer overflow in RSA-PSS signature verification when the hash is
too large for the key size. Found by Seth Terashima, Qualcomm.

Added a non-regression test and a positive test with the smallest
permitted key size for a SHA-512 hash.
2017-10-17 19:16:14 +02:00
Andres Amaya Garcia
fe7fd6e8dc Fix typo in asn1.h 2017-10-12 22:42:04 +01:00
Andres Amaya Garcia
b1d78fcf70 Improve leap year test names in x509parse.data 2017-10-12 21:03:15 +01:00
Andres Amaya Garcia
bc041130b0 Correctly handle leap year in x509_date_is_valid()
This patch ensures that invalid dates on leap years with 100 or 400
years intervals are handled correctly.
2017-10-12 21:03:01 +01:00
Janos Follath
5f1dd80eaf Renegotiation: Add tests for SigAlg ext parsing
This commit adds regression tests for the bug when we didn't parse the
Signature Algorithm extension when renegotiating. (By nature, this bug
affected only the server)

The tests check for the fallback hash (SHA1) in the server log to detect
that the Signature Algorithm extension hasn't been parsed at least in
one of the handshakes.

A more direct way of testing is not possible with the current test
framework, since the Signature Algorithm extension is parsed in the
first handshake and any corresponding debug message is present in the
logs.
2017-10-11 13:58:17 +01:00
Ron Eldor
bac9d4d90f Parse Signature Algorithm ext when renegotiating
Signature algorithm extension was skipped when renegotiation was in
progress, causing the signature algorithm not to be known when
renegotiating, and failing the handshake. Fix removes the renegotiation
step check before parsing the extension.
2017-10-11 13:58:08 +01:00
Simon Butcher
5d39aceb04 Fix changelog for ssl_server2.c usage fix 2017-10-02 19:17:57 +01:00
Ron Eldor
bd25784474 Fix ssl_server2 sample application prompt
FIx the type of server_addr parameter from %d to %s.
Issue reported by Email by Bei Jin
2017-10-02 19:17:48 +01:00
Simon Butcher
72e9ba2ce3 Update ChangeLog for fix to #836 2017-09-30 23:51:44 +01:00
Hanno Becker
c7845e51f3 Enhance documentation of ssl_write_hostname_ext, adapt ChangeLog.
Add a reference to the relevant RFC, adapt ChangeLog.
2017-09-30 23:49:01 +01:00
Hanno Becker
7891da28ea Enhance documentation of mbedtls_ssl_set_hostname
(1) Add missing error condition
(2) Specify allowance and effect of of NULL hostname parameter
(3) Describe effect of function on failure
2017-09-30 23:48:01 +01:00
Hanno Becker
b974e98b12 Add test case calling ssl_set_hostname twice
Add a test case calling ssl_set_hostname twice to test_suite_ssl.
When run in CMake build mode ASan, this catches the current leak,
but will hopefully be fine with the new version.
2017-09-30 23:47:44 +01:00
Hanno Becker
593b0d33f6 Make mbedtls_ssl_set_hostname safe to be called multiple times
Zeroize and free previously set hostnames before overwriting
them. Also, allow clearance of hostname by providing NULL parameter.
2017-09-30 23:47:34 +01:00
Ron Eldor
2823fad6cb Fix typo in configs/README.txt file
Fix typo in Readme file: ajust->adjust
2017-09-30 21:51:11 +01:00
Andres Amaya Garcia
41a38dfed6 Add ChangeLog entry 2017-09-15 11:01:40 +01:00
Andres Amaya Garcia
1042d8637c Dont send alert on invalid DTLS record type
Do not send fatal alerts when receiving a record with an invalid header
while running DTLS as this is not compliant behaviour.
2017-09-15 10:57:29 +01:00
Simon Butcher
1fe5e8ab44 Update version number to 2.1.9 2017-08-10 11:51:47 +01:00
Simon Butcher
a30508309e Fix language in Changelog for clarity 2017-08-10 10:48:33 +01:00
Simon Butcher
ea27c997c0 Improve documentation of PKCS1 decryption functions
Document the preconditions on the input and output buffers for
the PKCS1 decryption functions
 - mbedtls_rsa_pkcs1_decrypt,
 - mbedtls_rsa_rsaes_pkcs1_v15_decrypt
 - mbedtls_rsa_rsaes_oaep_decrypt
2017-08-01 23:00:34 +01:00
Hanno Becker
223f88dd2e Adapt ChangeLog 2017-07-28 22:15:31 +01:00
Hanno Becker
6ad82d714f Rename time and index parameter to avoid name conflict.
As noted in #557, several functions use 'index' resp. 'time'
as parameter names in their declaration and/or definition, causing name
conflicts with the functions in the C standard library of the same
name some compilers warn about.

This commit renames the arguments accordingly.
2017-07-28 22:14:55 +01:00
Hanno Becker
093620173b Correct comment and remove empty line 2017-07-28 21:43:19 +01:00
Hanno Becker
3948a101b6 Adapt ChangeLog 2017-07-28 21:42:50 +01:00
Hanno Becker
66daa68c19 Reliably zeroize sensitive data in AES sample application
The AES sample application programs/aes/aescrypt2 could miss zeroizing
the stack-based key buffer in case of an error during operation. This
commit fixes this and also clears another temporary buffer as well as
all command line arguments (one of which might be the key) before exit.
2017-07-28 21:41:11 +01:00
Hanno Becker
e0c35a6997 Reliably zeroize sensitive data in Crypt-and-Hash sample application
The AES sample application programs/aes/crypt_and_hash could miss
zeroizing the stack-based key buffer in case of an error during
operation. This commit fixes this and also clears all command line
arguments (one of which might be the key) before exit.
2017-07-28 21:40:52 +01:00
Simon Butcher
246bf6932d Fix duplication in Changelog introduced by merge 2017-07-28 13:08:07 +01:00
Simon Butcher
266f3446b7 Remove the check in ssl-opt.sh for MAX_INTERMEDIATE_CA
The check uses grep, not config.pl, on the x509 headers - not where it should
be configured - config.h. grep syntax isn't very portable. Without config.pl
it's quite hard to do this check properly so removing this check.
2017-07-28 13:02:33 +01:00
Simon Butcher
d4d70c4985 Fix threshold checks for MBEDTLS_X509_MAX_INTERMEDIATE_CA 2017-07-28 12:27:54 +01:00
Ron Eldor
b5851193eb Backport 2.1: check if iv is zero in gcm.
1) found by roberto in mbedtls forum
2) if iv_len is zero, return an error
3) add tests for invalid parameters
2017-07-28 12:21:38 +01:00
Hanno Becker
eeb1350073 Fix typo 2017-07-28 12:20:48 +01:00
Hanno Becker
88c6f726c5 Check threshold for MBEDTLS_X509_MAX_INTERMEDIATE_CA in X509 tests
The X509 test suite assumes that MBEDTLS_X509_MAX_INTERMEDIATE_CA is below the
hardcoded threshold 20 used in the long certificate chain generating script
tests/data_files/dir-max/long.sh. This commit adds a compile-time check for
that.
2017-07-28 12:20:48 +01:00
Hanno Becker
323a2227ee Improve Readme for long test certificate chains 2017-07-28 12:20:48 +01:00
Hanno Becker
81cc8f668b Check value of MBEDTLS_X509_MAX_INTERMEDIATE_CA in ssl-opt.sh
Some tests in ssl-opt.sh assumes the value 8 for the maximal number
MBEDTLS_X509_MAX_INTERMEDIATE_CA of intermediate CA's. This commit adds a check
before conducting the respective tests.
2017-07-28 12:20:48 +01:00
Hanno Becker
58897fbd7d Correct indentation and labelling in ChangeLog 2017-07-28 12:20:48 +01:00
Janos Follath
4721831ffb Fix typos 2017-07-28 12:20:48 +01:00
Manuel Pégourié-Gonnard
f2269b0579 Update doc of return value of verify() 2017-07-28 12:20:48 +01:00
Manuel Pégourié-Gonnard
71103cbcbb Make test script more portable
seq isn't POSIX and isn't present by default on BSDs
2017-07-28 12:20:48 +01:00
Manuel Pégourié-Gonnard
cdb4dc9393 Improve comments 2017-07-28 12:20:48 +01:00
Manuel Pégourié-Gonnard
83765655dd Add ChangeLog entry for the security issue 2017-07-28 12:20:48 +01:00
Manuel Pégourié-Gonnard
591035d0b4 Add SSL tests for long cert chains 2017-07-28 12:20:48 +01:00
Manuel Pégourié-Gonnard
c386317298 Only return VERIFY_FAILED from a single point
Everything else is a fatal error. Also improve documentation about that for
the vrfy callback.
2017-07-28 12:20:48 +01:00
Manuel Pégourié-Gonnard
489939f829 Improve behaviour on fatal errors
If we didn't walk the whole chain, then there may be any kind of errors in the
part of the chain we didn't check, so setting all flags looks like the safe
thing to do.
2017-07-28 12:20:47 +01:00
Manuel Pégourié-Gonnard
4770dbc913 Add test for limit on intermediate certificates
Inspired by test code provided by Nicholas Wilson in PR #351.

The test will fail if someone sets MAX_INTERMEDIATE_CA to a value larger than
18 (default is 8), which is hopefully unlikely and can easily be fixed by
running long.sh again with a larger value if it ever happens.

Current behaviour is suboptimal as flags are not set, but currently the goal
is only to document/test existing behaviour.
2017-07-28 12:19:49 +01:00
Andres AG
ad6cf99d6d Add CRT DER tests with incorrect version 2017-07-26 18:01:54 +01:00