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CVE-2013-4353

17
FAUCET Score

CVE-2013-4353 describes a denial-of-service vulnerability in OpenSSL versions prior to 1.0.1f, specifically within the ssl3_take_mac function. A remote TLS server can exploit this by sending a malformed Next Protocol Negotiation record during a TLS handshake, leading to a NULL pointer dereference and application crash. This vulnerability has a CVSS score of 4.3, indicating a medium attack complexity and a partial availability impact, with no confidentiality or integrity impact. There is no evidence of active exploitation, publicly available exploit code, or significant community discussion surrounding this decade-old vulnerability.

Impacted Technologies

VendorProductVersion(s)CPE
1.0.1CPE matchmatch criteria
cpe:2.3:a:openssl:openssl:1.0.1:*:*:*:*:*:*:*
1.0.1CPE matchmatch criteria
cpe:2.3:a:openssl:openssl:1.0.1:beta1:*:*:*:*:*:*
1.0.1CPE matchmatch criteria
cpe:2.3:a:openssl:openssl:1.0.1:beta2:*:*:*:*:*:*
1.0.1CPE matchmatch criteria
cpe:2.3:a:openssl:openssl:1.0.1:beta3:*:*:*:*:*:*
1.0.1aCPE matchmatch criteria
cpe:2.3:a:openssl:openssl:1.0.1a:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 2.0

4.3MEDIUM

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

Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
PARTIAL
Access Vector
NETWORK
Access Complexity
MEDIUM
Authentication
NONE
Exploitability Score
8.6
Impact Score
2.9
CvssVersion
2.0

Exploit Intelligence

EPSS Score
11.85%
Probability of exploitation in next 30 days
EPSS Percentile
95.7%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.1185 is in the 96th percentile among its peer group of 19,958 CVEs.

Social Chatter

No social media mentions found for this CVE.

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.0 Bluesky, 0.0 Mastodon, and 0.2 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.0 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (4)

redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 6Fixed in: openssl-0:1.0.1e-16.el6_5.4
View patch
redhatpatch availablevia redhat_api
Product: RHEV 3.X Hypervisor and Agents for RHEL-6Fixed in: rhev-hypervisor6-0:6.5-20140112.0.el6ev
View patch
redhatpatch availablevia redhat_api
Product: RHEV Manager version 3.3Fixed in: spice-client-msi-0:3.3-12
View patch
wagopatch availablevia llm_extracted
Fixed in: ['8.0.7']

Vendor Advisories (2)

redhatCVE-2013-4353Moderate

openssl: client NULL dereference crash on malformed handshake packets

Jan 6, 2014
wagollm-wago-08b8a4a34317d78fHIGH

Upgrade to OpenSSL 1.0.1f

References

git.openssl.org / gitweb
git.openssl.org / gitweb
lists.fedoraproject.org / pipermail/package-announce/2014-August/136470.html
lists.fedoraproject.org / pipermail/package-announce/2014-August/136473.html
lists.opensuse.org / opensuse-updates/2014-01/msg00065.html
lists.opensuse.org / opensuse-updates/2014-01/msg00067.html
lists.opensuse.org / opensuse-updates/2014-01/msg00070.html
rhn.redhat.com / errata/RHSA-2014-0015.html
rhn.redhat.com / errata/RHSA-2014-0041.html
bugzilla.redhat.com / show_bug.cgi
www-01.ibm.com / support/docview.wss
www-01.ibm.com / support/docview.wss
debian.org / security/2014/dsa-2837
openssl.org / news/vulnerabilities.html
Vendor Advisory
splunk.com / view/SP-CAAAMB3
ubuntu.com / usn/USN-2079-1