Information Exposure Affecting openssl package, versions <1.0.2e-1


Severity

Recommended
0.0
high
0
10

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Threat Intelligence

EPSS
0.45% (76th percentile)

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  • Snyk IDSNYK-DEBIANUNSTABLE-OPENSSL-374929
  • published6 Dec 2015
  • disclosed6 Dec 2015

Introduced: 6 Dec 2015

CVE-2015-3193  (opens in a new tab)
CWE-200  (opens in a new tab)

How to fix?

Upgrade Debian:unstable openssl to version 1.0.2e-1 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream openssl package and not the openssl package as distributed by Debian. See How to fix? for Debian:unstable relevant fixed versions and status.

The Montgomery squaring implementation in crypto/bn/asm/x86_64-mont5.pl in OpenSSL 1.0.2 before 1.0.2e on the x86_64 platform, as used by the BN_mod_exp function, mishandles carry propagation and produces incorrect output, which makes it easier for remote attackers to obtain sensitive private-key information via an attack against use of a (1) Diffie-Hellman (DH) or (2) Diffie-Hellman Ephemeral (DHE) ciphersuite.

References

CVSS Scores

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