Predictive Vulnerability Intelligence.

Product

  • Product
  • Pricing
  • Documentation

Company

  • About
  • Partnerships
  • Blog
  • Support

Legal

  • Terms
  • Privacy
  • Data Licensing

© 2026 FAUCET Technologies LLC. All rights reserved.

CVE-2015-3622

26
FAUCET Score

CVE-2015-3622 describes an out-of-bounds heap read vulnerability in the _asn1_extract_der_octet function of GNU Libtasn1 before version 4.5, affecting various Fedora and openSUSE products. This medium-complexity vulnerability, with a CVSS score of 4.3, can be exploited remotely via a crafted certificate to cause a denial of service. There is no evidence of active exploitation, publicly available exploit code, or significant community discussion or media coverage surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
13.2CPE matchmatch criteria
cpe:2.3:o:opensuse:opensuse:13.2:*:*:*:*:*:*:*
21CPE matchmatch criteria
cpe:2.3:o:fedoraproject:fedora:21:*:*:*:*:*:*:*
<= 4.4CPE matchmatch criteria
cpe:2.3:a:gnu:libtasn1:*:*:*:*:*:*:*:*

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
33.09%
Probability of exploitation in next 30 days
EPSS Percentile
98.2%
Percentile rank of EPSS score among Peer Group
As of 2026-07-24
Model: v2026.06.15
This CVE's current EPSS score of 0.3309 is in the 99th percentile among its peer group of 19,954 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 (3)

redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 7Fixed in: libtasn1-0:4.10-1.el7
View patch
redhatvendor investigatingvia redhat_api
Product: Red Hat Enterprise Virtualization 3Fixed in: mingw-virt-viewer
redhatend of lifevia redhat_api
Product: Red Hat Enterprise Linux 6Fixed in: libtasn1

Vendor Advisories (1)

redhatCVE-2015-3622Moderate

libtasn1: heap overflow flaw in _asn1_extract_der_octet()

Apr 30, 2015

References

lists.fedoraproject.org / pipermail/package-announce/2015-May/158225.html
lists.opensuse.org / opensuse-updates/2015-08/msg00014.html
lists.opensuse.org / opensuse-updates/2016-06/msg00047.html
lists.opensuse.org / opensuse-updates/2016-06/msg00097.html
packetstormsecurity.com / files/131711/libtasn1-Heap-Overflow.html
Exploit
access.redhat.com / errata/RHSA-2017:1860
seclists.org / fulldisclosure/2015/Apr/109
Exploit
lists.gnu.org / archive/html/help-libtasn1/2015-04/msg00000.html
security.gentoo.org / glsa/201509-04
debian.org / security/2015/dsa-3256
mandriva.com / security/advisories
securityfocus.com / bid/74419
securitytracker.com / id/1032246
ubuntu.com / usn/USN-2604-1