Integer Overflow or Wraparound Affecting openssl-libs package, versions <1:1.1.1g-11.el8


low

Snyk CVSS

    Attack Complexity Low

    Threat Intelligence

    EPSS 0.22% (60th percentile)
Expand this section
NVD
5.3 medium
Expand this section
SUSE
5.3 medium
Expand this section
Red Hat
4.8 medium

Do your applications use this vulnerable package?

In a few clicks we can analyze your entire application and see what components are vulnerable in your application, and suggest you quick fixes.

Test your applications
  • Snyk ID SNYK-ORACLE8-OPENSSLLIBS-2571703
  • published 10 Apr 2022
  • disclosed 6 Dec 2019

How to fix?

Upgrade Oracle:8 openssl-libs to version 1:1.1.1g-11.el8 or higher.
This issue was patched in ELSA-2020-4514.

NVD Description

Note: Versions mentioned in the description apply only to the upstream openssl-libs package and not the openssl-libs package as distributed by Oracle. See How to fix? for Oracle:8 relevant fixed versions and status.

There is an overflow bug in the x64_64 Montgomery squaring procedure used in exponentiation with 512-bit moduli. No EC algorithms are affected. Analysis suggests that attacks against 2-prime RSA1024, 3-prime RSA1536, and DSA1024 as a result of this defect would be very difficult to perform and are not believed likely. Attacks against DH512 are considered just feasible. However, for an attack the target would have to re-use the DH512 private key, which is not recommended anyway. Also applications directly using the low level API BN_mod_exp may be affected if they use BN_FLG_CONSTTIME. Fixed in OpenSSL 1.1.1e (Affected 1.1.1-1.1.1d). Fixed in OpenSSL 1.0.2u (Affected 1.0.2-1.0.2t).

References