CVE-2014-4911

The ssl_decrypt_buf function in library/ssl_tls.c in PolarSSL before 1.2.11 and 1.3.x before 1.3.8 allows remote attackers to cause a denial of service (crash) via vectors related to the GCM ciphersuites, as demonstrated using the Codenomicon Defensics toolkit.

Published: 2014-07-22 Last update: 2026-05-06 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2014-4911 is rated Moderate Risk (42.4/100): CVSS Medium severity, with medium exploitation likelihood (EPSS 0.53%). Review affected assets and schedule remediation.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

Exploit prediction scoring system (EPSS) score for CVE-2014-4911

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

# Date Old EPSS score New EPSS score Delta (New - Old)
1 2025-03-30 0.77% 0.53% -0.23%
2 2025-03-29 0.53% 0.77% +0.23%
3 2025-03-27 — 0.53% —

Full EPSS history (6 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2014-4911

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
5.0 2.0 MEDIUM
AV:N/AC:L/Au:N/C:N/I:N/A:P Click to expand
Access vector (AV:N)
Can be exploited remotely over network reachability.
Access complexity (AC:L)
Exploitation conditions are straightforward and predictable.
Authentication (AU:N)
No authentication is required.
Confidentiality impact (C:N)
No confidentiality impact.
Integrity impact (I:N)
No integrity impact.
Availability impact (A:P)
Partial availability impact.
 10.0 2.9 [email protected]

Weakness enumeration for CVE-2014-4911

OS Trackers for CVE-2014-4911

vendor priority summary link
ubuntu medium CVE-2014-4911 medium priority: Ubuntu including 2 source packages (mbedtls, polarssl), 25 status rows across 14 suites (artful, bionic, cosmic, disco, lucid, precise, trusty, upstream, utopic, vivid, wily, xenial, yakkety, zesty): DNE 11, not-affected 10, ignored 2, released 2. https://ubuntu.com/security/CVE-2014-4911

Affected software / configurations for CVE-2014-4911

Vendor Product Version Raw CPE
polarssl polarssl 1.3.0 cpe:2.3:a:polarssl:polarssl:1.3.0:*:*:*:*:*:*:*
polarssl polarssl 1.3.0 cpe:2.3:a:polarssl:polarssl:1.3.0:alpha1:*:*:*:*:*:*
polarssl polarssl 1.3.0 cpe:2.3:a:polarssl:polarssl:1.3.0:rc0:*:*:*:*:*:*
polarssl polarssl 1.3.1 cpe:2.3:a:polarssl:polarssl:1.3.1:*:*:*:*:*:*:*
polarssl polarssl 1.3.2 cpe:2.3:a:polarssl:polarssl:1.3.2:*:*:*:*:*:*:*
polarssl polarssl 1.3.3 cpe:2.3:a:polarssl:polarssl:1.3.3:*:*:*:*:*:*:*
polarssl polarssl 1.3.4 cpe:2.3:a:polarssl:polarssl:1.3.4:*:*:*:*:*:*:*
polarssl polarssl 1.3.5 cpe:2.3:a:polarssl:polarssl:1.3.5:*:*:*:*:*:*:*
polarssl polarssl 1.3.6 cpe:2.3:a:polarssl:polarssl:1.3.6:*:*:*:*:*:*:*
polarssl polarssl 1.3.7 cpe:2.3:a:polarssl:polarssl:1.3.7:*:*:*:*:*:*:*
polarssl polarssl <= 1.2.10 cpe:2.3:a:polarssl:polarssl:*:*:*:*:*:*:*:*
polarssl polarssl 1.2.0 cpe:2.3:a:polarssl:polarssl:1.2.0:*:*:*:*:*:*:*
polarssl polarssl 1.2.1 cpe:2.3:a:polarssl:polarssl:1.2.1:*:*:*:*:*:*:*
polarssl polarssl 1.2.2 cpe:2.3:a:polarssl:polarssl:1.2.2:*:*:*:*:*:*:*
polarssl polarssl 1.2.3 cpe:2.3:a:polarssl:polarssl:1.2.3:*:*:*:*:*:*:*
polarssl polarssl 1.2.4 cpe:2.3:a:polarssl:polarssl:1.2.4:*:*:*:*:*:*:*
polarssl polarssl 1.2.5 cpe:2.3:a:polarssl:polarssl:1.2.5:*:*:*:*:*:*:*
polarssl polarssl 1.2.6 cpe:2.3:a:polarssl:polarssl:1.2.6:*:*:*:*:*:*:*
polarssl polarssl 1.2.7 cpe:2.3:a:polarssl:polarssl:1.2.7:*:*:*:*:*:*:*
polarssl polarssl 1.2.8 cpe:2.3:a:polarssl:polarssl:1.2.8:*:*:*:*:*:*:*
polarssl polarssl 1.2.9 cpe:2.3:a:polarssl:polarssl:1.2.9:*:*:*:*:*:*:*
debian debian_linux 6.0 cpe:2.3:o:debian:debian_linux:6.0:*:*:*:*:*:*:*
debian debian_linux 7.0 cpe:2.3:o:debian:debian_linux:7.0:*:*:*:*:*:*:*
debian debian_linux 8.0 cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:*

References for CVE-2014-4911

cvelogic Threat Intelligence