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OpenAdvisories
High USN-3087-1 11 CVEs

openssl vulnerabilities

Published Sep 22, 2016 · Updated Jun 1, 2026

Ecosystem: Ubuntu

Summary

Shi Lei discovered that OpenSSL incorrectly handled the OCSP Status Request
extension. A remote attacker could possibly use this issue to cause memory
consumption, resulting in a denial of service. (CVE-2016-6304)

Guido Vranken discovered that OpenSSL used undefined behaviour when
performing pointer arithmetic. A remote attacker could possibly use this
issue to cause OpenSSL to crash, resulting in a denial of service. This
issue has only been addressed in Ubuntu 16.04 LTS in this update.
(CVE-2016-2177)

César Pereida, Billy Brumley, and Yuval Yarom discovered that OpenSSL
did not properly use constant-time operations when performing DSA signing.
A remote attacker could possibly use this issue to perform a cache-timing
attack and recover private DSA keys. (CVE-2016-2178)

Quan Luo discovered that OpenSSL did not properly restrict the lifetime
of queue entries in the DTLS implementation. A remote attacker could
possibly use this issue to consume memory, resulting in a denial of
service. (CVE-2016-2179)

Shi Lei discovered that OpenSSL incorrectly handled memory in the
TS_OBJ_print_bio() function. A remote attacker could possibly use this
issue to cause a denial of service. (CVE-2016-2180)

It was discovered that the OpenSSL incorrectly handled the DTLS anti-replay
feature. A remote attacker could possibly use this issue to cause a denial
of service. (CVE-2016-2181)

Shi Lei discovered that OpenSSL incorrectly validated division results. A
remote attacker could possibly use this issue to cause a denial of service.
(CVE-2016-2182)

Karthik Bhargavan and Gaetan Leurent discovered that the DES and Triple DES
ciphers were vulnerable to birthday attacks. A remote attacker could
possibly use this flaw to obtain clear text data from long encrypted
sessions. This update moves DES from the HIGH cipher list to MEDIUM.
(CVE-2016-2183)

Shi Lei discovered that OpenSSL incorrectly handled certain ticket lengths.
A remote attacker could use this issue to cause a denial of service.
(CVE-2016-6302)

Shi Lei discovered that OpenSSL incorrectly handled memory in the
MDC2_Update() function. A remote attacker could possibly use this issue to
cause a denial of service. (CVE-2016-6303)

Shi Lei discovered that OpenSSL incorrectly performed certain message
length checks. A remote attacker could possibly use this issue to cause a
denial of service. (CVE-2016-6306)

Fixed packages 2

ReleasePackageFixed in
Ubuntu · 14.04 LTS 14.04:LTS openssl 1.0.1f-1ubuntu2.20
Ubuntu · 16.04 LTS 16.04:LTS openssl 1.0.2g-1ubuntu4.4

Vulnerabilities 11

References

  • report
    https://ubuntu.com/security/CVE-2016-2177
  • report
    https://ubuntu.com/security/CVE-2016-2178
  • report
    https://ubuntu.com/security/CVE-2016-2179
  • report
    https://ubuntu.com/security/CVE-2016-2180
  • report
    https://ubuntu.com/security/CVE-2016-2181
  • report
    https://ubuntu.com/security/CVE-2016-2182
  • report
    https://ubuntu.com/security/CVE-2016-2183
  • report
    https://ubuntu.com/security/CVE-2016-6302
  • report
    https://ubuntu.com/security/CVE-2016-6303
  • report
    https://ubuntu.com/security/CVE-2016-6304
  • report
    https://ubuntu.com/security/CVE-2016-6306