Incorrect Calculation Affecting jbcs-httpd24-httpd-manual package, versions <0:2.4.29-17.jbcs.el7


Severity

Recommended
0.0
medium
0
10

Based on Red Hat Enterprise Linux security rating.

Threat Intelligence

EPSS
0.17% (56th percentile)

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  • Snyk IDSNYK-RHEL7-JBCSHTTPD24HTTPDMANUAL-3628591
  • published26 Jul 2021
  • disclosed2 Nov 2017

Introduced: 2 Nov 2017

CVE-2017-3736  (opens in a new tab)
CWE-682  (opens in a new tab)

How to fix?

Upgrade RHEL:7 jbcs-httpd24-httpd-manual to version 0:2.4.29-17.jbcs.el7 or higher.
This issue was patched in RHSA-2018:2185.

NVD Description

Note: Versions mentioned in the description apply only to the upstream jbcs-httpd24-httpd-manual package and not the jbcs-httpd24-httpd-manual package as distributed by RHEL. See How to fix? for RHEL:7 relevant fixed versions and status.

There is a carry propagating bug in the x86_64 Montgomery squaring procedure in OpenSSL before 1.0.2m and 1.1.0 before 1.1.0g. No EC algorithms are affected. Analysis suggests that attacks against RSA and DSA as a result of this defect would be very difficult to perform and are not believed likely. Attacks against DH are considered just feasible (although very difficult) because most of the work necessary to deduce information about a private key may be performed offline. The amount of resources required for such an attack would be very significant and likely only accessible to a limited number of attackers. An attacker would additionally need online access to an unpatched system using the target private key in a scenario with persistent DH parameters and a private key that is shared between multiple clients. This only affects processors that support the BMI1, BMI2 and ADX extensions like Intel Broadwell (5th generation) and later or AMD Ryzen.