Improper Input Validation Affecting openssl package, versions <1:1.0.1e-51.el7_2.7

Threat Intelligence

46.58% (98^th percentile)

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Snyk IDSNYK-RHEL7-OPENSSL-4678710
published26 Jul 2021
disclosed5 Jul 2016

Report a new vulnerability Found a mistake?

Introduced: 5 Jul 2016

CVE-2016-2181 (opens in a new tab) CWE-20 (opens in a new tab)

How to fix?

Upgrade RHEL:7 openssl to version 1:1.0.1e-51.el7_2.7 or higher.
This issue was patched in RHSA-2016:1940.

NVD Description

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

The Anti-Replay feature in the DTLS implementation in OpenSSL before 1.1.0 mishandles early use of a new epoch number in conjunction with a large sequence number, which allows remote attackers to cause a denial of service (false-positive packet drops) via spoofed DTLS records, related to rec_layer_d1.c and ssl3_record.c.