PT-2014-1912 · Openssl+2 · Openssl+2

Published 2014-03-23 · Updated 2024-06-15 · CVE-2014-0016

Positive Technologies (AI Summary)

CVSS v2.0

4.3

Medium

Base vector

AV:N/AC:M/Au:N/C:P/I:N/A:N

Name of the Vulnerable Software and Affected Versions stunnel versions prior to 5.00 stunnel versions prior to 5.02

Description The issue is related to the improper update of the OpenSSL pseudo-random number generator (PRNG) state when using fork threading in stunnel. This causes subsequent children with the same process ID to use the same entropy pool, allowing remote attackers to obtain private keys for EC (ECDSA) or DSA certificates. The vulnerability can be exploited remotely and may lead to a breach of confidentiality.

Recommendations For versions prior to 5.00, update to version 5.00 or later. For versions prior to 5.02, update to version 5.02 or later. As a temporary workaround, consider disabling the fork threading feature in stunnel until a patch is available.

Fix

Weakness Enumeration

CWE-332

Related Identifiers

ALT-PU-2014-1473

BDU:2015-09778

CVE-2014-0016

MGASA-2014-0144

OPENSUSE-SU-2024:10289-1

Affected Products

Alt Linux

Openssl

Stunnel

References · 20

• https://osv.dev/vulnerability/openSUSE-SU-2024:10289-1 · Vendor Advisory
• http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2014-0016 · Security Note
• https://bdu.fstec.ru/vul/2015-09778 · Security Note
• https://bugzilla.redhat.com/attachment.cgi?id=870826&action=diff · Patch
• https://advisories.mageia.org/MGASA-2014-0144.html · Security Note
• https://nvd.nist.gov/vuln/detail/CVE-2014-0016 · Security Note
• https://stunnel.org/sdf_ChangeLog.html · Vendor Advisory
• https://osv.dev/vulnerability/MGASA-2014-0144 · Vendor Advisory
• https://errata.altlinux.org/ALT-PU-2014-1473 · Vendor Advisory
• https://suse.com/security/cve/CVE-2010-3864 · Note
• https://bugzilla.redhat.com/show_bug.cgi?id=1072180 · Note
• https://packages.altlinux.org/ru/vuln/CVE-2014-0016 · Note
• https://suse.com/security/cve/CVE-2014-0160 · Note
• http://openwall.com/lists/oss-security/2014/03/05/1 · Note
• https://bugs.mageia.org/show_bug.cgi?id=12943 · Note