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From: Peter Korsgaard <peter@korsgaard.com>
To: Peter Seiderer <ps.report@gmx.net>
Cc: Matt Weber <matthew.weber@collins.com>, buildroot@buildroot.org
Subject: Re: [Buildroot] [PATCH v1] package/libopenssl: security bump to version 1.1.1t
Date: Tue, 28 Feb 2023 17:15:40 +0100	[thread overview]
Message-ID: <87o7pdix5f.fsf@dell.be.48ers.dk> (raw)
In-Reply-To: <20230208162534.28581-1-ps.report@gmx.net> (Peter Seiderer's message of "Wed, 8 Feb 2023 17:25:34 +0100")

>>>>> "Peter" == Peter Seiderer <ps.report@gmx.net> writes:

 > Changelog (for details see [1] and [2]):
 >  Changes between 1.1.1s and 1.1.1t [7 Feb 2023]

 >   *) Fixed X.400 address type confusion in X.509 GeneralName.

 >      There is a type confusion vulnerability relating to X.400 address processing
 >      inside an X.509 GeneralName. X.400 addresses were parsed as an ASN1_STRING
 >      but subsequently interpreted by GENERAL_NAME_cmp as an ASN1_TYPE. This
 >      vulnerability may allow an attacker who can provide a certificate chain and
 >      CRL (neither of which need have a valid signature) to pass arbitrary
 >      pointers to a memcmp call, creating a possible read primitive, subject to
 >      some constraints. Refer to the advisory for more information. Thanks to
 >      David Benjamin for discovering this issue. (CVE-2023-0286)

 >      This issue has been fixed by changing the public header file definition of
 >      GENERAL_NAME so that x400Address reflects the implementation. It was not
 >      possible for any existing application to successfully use the existing
 >      definition; however, if any application references the x400Address field
 >      (e.g. in dead code), note that the type of this field has changed. There is
 >      no ABI change.
 >      [Hugo Landau]

 >   *) Fixed Use-after-free following BIO_new_NDEF.

 >      The public API function BIO_new_NDEF is a helper function used for
 >      streaming ASN.1 data via a BIO. It is primarily used internally to OpenSSL
 >      to support the SMIME, CMS and PKCS7 streaming capabilities, but may also
 >      be called directly by end user applications.

 >      The function receives a BIO from the caller, prepends a new BIO_f_asn1
 >      filter BIO onto the front of it to form a BIO chain, and then returns
 >      the new head of the BIO chain to the caller. Under certain conditions,
 >      for example if a CMS recipient public key is invalid, the new filter BIO
 >      is freed and the function returns a NULL result indicating a failure.
 >      However, in this case, the BIO chain is not properly cleaned up and the
 >      BIO passed by the caller still retains internal pointers to the previously
 >      freed filter BIO. If the caller then goes on to call BIO_pop() on the BIO
 >      then a use-after-free will occur. This will most likely result in a crash.
 >      (CVE-2023-0215)
 >      [Viktor Dukhovni, Matt Caswell]

 >   *) Fixed Double free after calling PEM_read_bio_ex.

 >      The function PEM_read_bio_ex() reads a PEM file from a BIO and parses and
 >      decodes the "name" (e.g. "CERTIFICATE"), any header data and the payload
 >      data. If the function succeeds then the "name_out", "header" and "data"
 >      arguments are populated with pointers to buffers containing the relevant
 >      decoded data. The caller is responsible for freeing those buffers. It is
 >      possible to construct a PEM file that results in 0 bytes of payload data.
 >      In this case PEM_read_bio_ex() will return a failure code but will populate
 >      the header argument with a pointer to a buffer that has already been freed.
 >      If the caller also frees this buffer then a double free will occur. This
 >      will most likely lead to a crash.

 >      The functions PEM_read_bio() and PEM_read() are simple wrappers around
 >      PEM_read_bio_ex() and therefore these functions are also directly affected.

 >      These functions are also called indirectly by a number of other OpenSSL
 >      functions including PEM_X509_INFO_read_bio_ex() and
 >      SSL_CTX_use_serverinfo_file() which are also vulnerable. Some OpenSSL
 >      internal uses of these functions are not vulnerable because the caller does
 >      not free the header argument if PEM_read_bio_ex() returns a failure code.
 >      (CVE-2022-4450)
 >      [Kurt Roeckx, Matt Caswell]

 >   *) Fixed Timing Oracle in RSA Decryption.

 >      A timing based side channel exists in the OpenSSL RSA Decryption
 >      implementation which could be sufficient to recover a plaintext across
 >      a network in a Bleichenbacher style attack. To achieve a successful
 >      decryption an attacker would have to be able to send a very large number
 >      of trial messages for decryption. The vulnerability affects all RSA padding
 >      modes: PKCS#1 v1.5, RSA-OEAP and RSASVE.
 >      (CVE-2022-4304)
 >      [Dmitry Belyavsky, Hubert Kario]

 >  Changes between 1.1.1r and 1.1.1s [1 Nov 2022]

 >   *) Fixed a regression introduced in 1.1.1r version not refreshing the
 >      certificate data to be signed before signing the certificate.
 >      [Gibeom Gwon]

 >  Changes between 1.1.1q and 1.1.1r [11 Oct 2022]

 >   *) Fixed the linux-mips64 Configure target which was missing the
 >      SIXTY_FOUR_BIT bn_ops flag. This was causing heap corruption on that
 >      platform.
 >      [Adam Joseph]

 >   *) Fixed a strict aliasing problem in bn_nist. Clang-14 optimisation was
 >      causing incorrect results in some cases as a result.
 >      [Paul Dale]

 >   *) Fixed SSL_pending() and SSL_has_pending() with DTLS which were failing to
 >      report correct results in some cases
 >      [Matt Caswell]

 >   *) Fixed a regression introduced in 1.1.1o for re-signing certificates with
 >      different key sizes
 >      [Todd Short]

 >   *) Added the loongarch64 target
 >      [Shi Pujin]

 >   *) Fixed a DRBG seed propagation thread safety issue
 >      [Bernd Edlinger]

 >   *) Fixed a memory leak in tls13_generate_secret
 >      [Bernd Edlinger]

 >   *) Fixed reported performance degradation on aarch64. Restored the
 >      implementation prior to commit 2621751 ("aes/asm/aesv8-armx.pl: avoid
 >      32-bit lane assignment in CTR mode") for 64bit targets only, since it is
 >      reportedly 2-17% slower and the silicon errata only affects 32bit targets.
 >      The new algorithm is still used for 32 bit targets.
 >      [Bernd Edlinger]

 >   *) Added a missing header for memcmp that caused compilation failure on some
 >      platforms
 >      [Gregor Jasny]

 > [1] https://www.openssl.org/news/cl111.txt
 > [2] https://www.openssl.org/news/vulnerabilities.html

 > Signed-off-by: Peter Seiderer <ps.report@gmx.net>

Committed to 2022.11.x and 2022.02.x, thanks.

-- 
Bye, Peter Korsgaard
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      parent reply	other threads:[~2023-02-28 16:15 UTC|newest]

Thread overview: 4+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2023-02-08 16:25 [Buildroot] [PATCH v1] package/libopenssl: security bump to version 1.1.1t Peter Seiderer
2023-02-08 16:43 ` Thomas Petazzoni via buildroot
2023-02-20  5:20   ` Scott Fan
2023-02-28 16:15 ` Peter Korsgaard [this message]

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