CVE-2021-41991

HighCVSS 7.5/10Last modified Jun 17, 2026

Description

The in-memory certificate cache in strongSwan before 5.9.4 has a remote integer overflow upon receiving many requests with different certificates to fill the cache and later trigger the replacement of cache entries. The code attempts to select a less-often-used cache entry by means of a random number generator, but this is not done correctly. Remote code execution might be a slight possibility.

Metrics

CVSS 3.1 7.5/10CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Weakness enumeration

CWE-190

Affected software

No affected versions have been published.

Timeline

Published: Oct 18, 2021
Last modified: Jun 17, 2026
NVD status: Modified

Related CVEs from 2021

CVE-2021-419925.6A misconfiguration of RSA in PingID Windows Login prior to 2.7 is vulnerable to pre-computed dictionary attacks, leading to an offline MFA b CVE-2021-419934.8A misconfiguration of RSA in PingID Android app prior to 1.19 is vulnerable to pre-computed dictionary attacks, leading to an offline MFA by CVE-2021-419944.8A misconfiguration of RSA in PingID iOS app prior to 1.19 is vulnerable to pre-computed dictionary attacks, leading to an offline MFA bypass CVE-2021-419957.5A misconfiguration of RSA in PingID Mac Login prior to 1.1 is vulnerable to pre-computed dictionary attacks, leading to an offline MFA bypas CVE-2021-42005.4A Improper Privilege Management vulnerability in SUSE Rancher allows write access to the Catalog for any user when restricted-admin role is CVE-2021-420006.5When a password reset or password change flow with an authentication policy is configured and the adapter in the reset or change policy supp CVE-2021-420019.9PingID Desktop prior to 1.7.3 has a misconfiguration in the encryption libraries which can lead to sensitive data exposure. An attacker capa CVE-2021-420029.8Zoho ManageEngine ADManager Plus before 7115 is vulnerable to a filter bypass that leads to file-upload remote code execution.CVE-2021-420068.8An out-of-bounds access in GffLine::GffLine in gff.cpp in GCLib 0.12.7 allows an attacker to cause a segmentation fault or possibly have uns CVE-2021-420087.8The decode_data function in drivers/net/hamradio/6pack.c in the Linux kernel before 5.13.13 has a slab out-of-bounds write. Input from a pro CVE-2021-420094.3An authenticated Apache Traffic Control Traffic Ops user with Portal-level privileges can send a request with a specially-crafted email subj CVE-2021-42019.8Missing access control in ForgeRock Access Management 7.1.0 and earlier versions on all platforms allows remote unauthenticated attackers to