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Package "libssl-doc"

Name: libssl-doc

Description:

Secure Sockets Layer toolkit - development documentation
Latest version: 1.0.2g-1ubuntu4.20
Release: xenial (16.04)
Level: security
Repository: main
Head package: openssl

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Other versions of "libssl-doc" in Xenial

Repository Area Version
base main 1.0.2g-1ubuntu4
updates main 1.0.2g-1ubuntu4.20

Changelog

Version: 1.0.2g-1ubuntu4.20 2021-08-19 19:06:19 UTC

  openssl (1.0.2g-1ubuntu4.20) xenial-security; urgency=medium

  * Enable X509_V_FLAG_TRUSTED_FIRST by default, such that letsencrypt
    connection with the default chain remains trusted even after the
    expiry of the redundant CA certificate. LP: #1928989

 -- Dimitri John Ledkov <email address hidden> Mon, 28 Jun 2021 14:05:36 +0100
Source diff to previous version
1928989 expiring trust anchor compatibility issue

Version: 1.0.2g-1ubuntu4.19 2021-02-18 14:06:18 UTC

  openssl (1.0.2g-1ubuntu4.19) xenial-security; urgency=medium

  * SECURITY UPDATE: Integer overflow in CipherUpdate
    - debian/patches/CVE-2021-23840-pre1.patch: add new EVP error codes in
      crypto/evp/evp_err.c, crypto/evp/evp.h.
    - debian/patches/CVE-2021-23840-pre2.patch: add a new EVP error code in
      crypto/evp/evp_err.c, crypto/evp/evp.h.
    - debian/patches/CVE-2021-23840.patch: don't overflow the output length
      in EVP_CipherUpdate calls in crypto/evp/evp_enc.c,
      crypto/evp/evp_err.c, crypto/evp/evp.h.
    - CVE-2021-23840
  * SECURITY UPDATE: Null pointer deref in X509_issuer_and_serial_hash()
    - debian/patches/CVE-2021-23841.patch: fix Null pointer deref in
      crypto/x509/x509_cmp.c.
    - CVE-2021-23841

 -- Marc Deslauriers <email address hidden> Wed, 17 Feb 2021 08:14:40 -0500
Source diff to previous version
CVE-2021-23840 Calls to EVP_CipherUpdate, EVP_EncryptUpdate and EVP_DecryptUpdate may overflow the output length argument in some cases where the input length is cl
CVE-2021-23841 Calls to EVP_CipherUpdate, EVP_EncryptUpdate and EVP_DecryptUpdate may overflow the output length argument in some cases where the input length is cl

Version: 1.0.2g-1ubuntu4.18 2020-12-08 17:07:08 UTC

  openssl (1.0.2g-1ubuntu4.18) xenial-security; urgency=medium

  * SECURITY UPDATE: EDIPARTYNAME NULL pointer de-ref
    - debian/patches/CVE-2020-1971-1.patch: use explicit tagging for
      DirectoryString in crypto/x509v3/v3_genn.c.
    - debian/patches/CVE-2020-1971-2.patch: correctly compare EdiPartyName
      in crypto/x509v3/v3_genn.c.
    - debian/patches/CVE-2020-1971-3.patch: check that multi-strings/CHOICE
      types don't use implicit tagging in crypto/asn1/asn1_err.c,
      crypto/asn1/tasn_dec.c, crypto/asn1/asn1.h.
    - debian/patches/CVE-2020-1971-4.patch: complain if we are attempting
      to encode with an invalid ASN.1 template in crypto/asn1/asn1_err.c,
      crypto/asn1/tasn_enc.c, crypto/asn1/asn1.h.
    - debian/patches/CVE-2020-1971-5.patch: add a test for GENERAL_NAME_cmp
      in crypto/x509v3/v3nametest.c.
    - CVE-2020-1971

 -- Marc Deslauriers <email address hidden> Wed, 02 Dec 2020 10:43:58 -0500
Source diff to previous version
CVE-2020-1971 EDIPARTYNAME NULL pointer de-reference

Version: 1.0.2g-1ubuntu4.17 2020-09-16 15:06:14 UTC

  openssl (1.0.2g-1ubuntu4.17) xenial-security; urgency=medium

  * SECURITY UPDATE: Raccoon Attack
    - debian/patches/CVE-2020-1968.patch: disable ciphers that reuse the
      DH secret across multiple TLS connections in ssl/s3_lib.c.
    - CVE-2020-1968

 -- Marc Deslauriers <email address hidden> Tue, 15 Sep 2020 14:13:51 -0400
Source diff to previous version
CVE-2020-1968 The Raccoon attack exploits a flaw in the TLS specification which can lead to an attacker being able to compute the pre-master secret in connections

Version: 1.0.2g-1ubuntu4.16 2020-05-28 13:06:45 UTC

  openssl (1.0.2g-1ubuntu4.16) xenial-security; urgency=medium

  * SECURITY UPDATE: ECDSA remote timing attack
    - debian/patches/CVE-2019-1547.patch: for ECC parameters with NULL or
      zero cofactor, compute it in crypto/ec/ec.h, crypto/ec/ec_err.c,
      crypto/ec/ec_lib.c.
    - CVE-2019-1547
  * SECURITY UPDATE: rsaz_512_sqr overflow bug on x86_64
    - debian/patches/CVE-2019-1551.patch: fix an overflow bug in
      rsaz_512_sqr in crypto/bn/asm/rsaz-x86_64.pl.
    - CVE-2019-1551
  * SECURITY UPDATE: Padding Oracle issue
    - debian/patches/CVE-2019-1563.patch: fix a padding oracle in
      PKCS7_dataDecode and CMS_decrypt_set1_pkey in crypto/cms/cms_env.c,
      crypto/cms/cms_lcl.h, crypto/cms/cms_smime.c,
      crypto/pkcs7/pk7_doit.c.
    - CVE-2019-1563

 -- Marc Deslauriers <email address hidden> Wed, 27 May 2020 15:17:49 -0400
CVE-2019-1547 Normally in OpenSSL EC groups always have a co-factor present and this is used in side channel resistant code paths. However, in some cases, it is po
CVE-2019-1551 There is an overflow bug in the x64_64 Montgomery squaring procedure used in exponentiation with 512-bit moduli. No EC algorithms are affected. Analy
CVE-2019-1563 In situations where an attacker receives automated notification of the success or failure of a decryption attempt an attacker, after sending a very l


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