ISOMAN

CVE

CVE-2015-8805

The ecc_256_modq function in ecc-256.c in Nettle before 3.2 does not properly handle carry propagation and produces incorrect output in its implementation of the P-256 NIST elliptic curve, which allows attackers to have unspecified impact via unknown vectors, a different vulnerability than CVE-2015-8803.

Severity
CRITICAL
CVSS
9.8
Published
Modified

Linked Releases

References

  1. http://lists.opensuse.org/opensuse-updates/2016-02/msg00091.html
  2. http://lists.opensuse.org/opensuse-updates/2016-02/msg00093.html
  3. http://lists.opensuse.org/opensuse-updates/2016-02/msg00100.html
  4. http://rhn.redhat.com/errata/RHSA-2016-2582.html
  5. http://www.openwall.com/lists/oss-security/2016/02/02/2
  6. http://www.openwall.com/lists/oss-security/2016/02/03/1
  7. http://www.securityfocus.com/bid/84272
  8. http://www.ubuntu.com/usn/USN-2897-1
  9. https://blog.fuzzing-project.org/38-Miscomputations-of-elliptic-curve-scalar-multiplications-in-Nettle.html
  10. https://git.lysator.liu.se/nettle/nettle/commit/c71d2c9d20eeebb985e3872e4550137209e3ce4d
  11. http://lists.opensuse.org/opensuse-updates/2016-02/msg00091.html
  12. http://lists.opensuse.org/opensuse-updates/2016-02/msg00093.html
  13. http://lists.opensuse.org/opensuse-updates/2016-02/msg00100.html
  14. http://rhn.redhat.com/errata/RHSA-2016-2582.html
  15. http://www.openwall.com/lists/oss-security/2016/02/02/2
  16. http://www.openwall.com/lists/oss-security/2016/02/03/1
  17. http://www.securityfocus.com/bid/84272
  18. http://www.ubuntu.com/usn/USN-2897-1
  19. https://blog.fuzzing-project.org/38-Miscomputations-of-elliptic-curve-scalar-multiplications-in-Nettle.html
  20. https://git.lysator.liu.se/nettle/nettle/commit/c71d2c9d20eeebb985e3872e4550137209e3ce4d