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CVE-2012-1569

21
FAUCET Score

CVE-2012-1569 describes a heap memory corruption vulnerability in the asn1_get_length_der function of GNU Libtasn1 before version 2.12, also affecting GnuTLS before 3.0.16. This flaw allows remote attackers to trigger a denial of service (application crash) or potentially other unspecified impacts by providing a specially crafted ASN.1 structure. With a CVSS score of 5.0 (AV:N/AC:L/Au:N/C:N/I:N/A:P), it is a medium-severity vulnerability that can be exploited remotely with low attack complexity, leading to partial availability impact. There is no evidence of active exploitation, no known public exploit code (Metasploit, Nuclei, ExploitDB), and it is not listed in the KEV catalog, though it has received some community discussion and media coverage.

Impacted Technologies

VendorProductVersion(s)CPE
<= 3.0.15CPE matchmatch criteria
cpe:2.3:a:gnu:gnutls:*:*:*:*:*:*:*:*
1.0.16CPE matchmatch criteria
cpe:2.3:a:gnu:gnutls:1.0.16:*:*:*:*:*:*:*
1.0.17CPE matchmatch criteria
cpe:2.3:a:gnu:gnutls:1.0.17:*:*:*:*:*:*:*
1.0.18CPE matchmatch criteria
cpe:2.3:a:gnu:gnutls:1.0.18:*:*:*:*:*:*:*
1.0.19CPE matchmatch criteria
cpe:2.3:a:gnu:gnutls:1.0.19:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 2.0

5.0MEDIUM

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

Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
PARTIAL
Access Vector
NETWORK
Access Complexity
LOW
Authentication
NONE
Exploitability Score
10.0
Impact Score
2.9
CvssVersion
2.0

Exploit Intelligence

EPSS Score
4.46%
Probability of exploitation in next 30 days
EPSS Percentile
90.4%
Percentile rank of EPSS score among Peer Group
As of 2026-07-24
Model: v2026.06.15
This CVE's current EPSS score of 0.0446 is in the 87th percentile among its peer group of 23,690 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.0 Mastodon, and 0.4 GitHub mentions.

Media Mentions

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 (5)

redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 5Fixed in: gnutls-0:1.4.1-7.el5_8.2
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 6Fixed in: libtasn1-0:2.3-3.el6_2.1
View patch
redhatpatch availablevia redhat_api
Product: RHEV 3.X Hypervisor and Agents for RHEL-6Fixed in: rhev-hypervisor6-0:6.2-20120423.1.el6_2
View patch
redhatend of lifevia redhat_api
Product: Red Hat Enterprise Linux 4Fixed in: gnutls
redhatend of lifevia redhat_api
Product: Red Hat Enterprise Linux 6Fixed in: mingw32-gnutls

Vendor Advisories (1)

redhatCVE-2012-1569Important

libtasn1: DER decoding buffer overflow (GNUTLS-SA-2012-3, MU-201202-02)

Mar 19, 2012

References

archives.neohapsis.com / archives/bugtraq/2012-03/0099.html
article.gmane.org / gmane.comp.encryption.gpg.gnutls.devel/5932
Patch
article.gmane.org / gmane.comp.gnu.libtasn1.general/53
article.gmane.org / gmane.comp.gnu.libtasn1.general/54
blog.mudynamics.com / 2012/03/20/gnutls-and-libtasn1-vulns
Exploit
linux.oracle.com / errata/ELSA-2014-0596.html
lists.fedoraproject.org / pipermail/package-announce/2012-April/076856.html
lists.fedoraproject.org / pipermail/package-announce/2012-April/076865.html
lists.fedoraproject.org / pipermail/package-announce/2012-April/077284.html
lists.fedoraproject.org / pipermail/package-announce/2012-April/077339.html
lists.fedoraproject.org / pipermail/package-announce/2012-April/078207.html
lists.fedoraproject.org / pipermail/package-announce/2012-March/076699.html
lists.opensuse.org / opensuse-security-announce/2014-03/msg00001.html
rhn.redhat.com / errata/RHSA-2012-0427.html
rhn.redhat.com / errata/RHSA-2012-0488.html
rhn.redhat.com / errata/RHSA-2012-0531.html
bugzilla.redhat.com / show_bug.cgi
secunia.com / advisories/48397
secunia.com / advisories/48488
secunia.com / advisories/48505
secunia.com / advisories/48578
secunia.com / advisories/48596
secunia.com / advisories/49002
secunia.com / advisories/50739
secunia.com / advisories/57260
debian.org / security/2012/dsa-2440
gnu.org / software/gnutls/security.html
Vendor Advisory
mandriva.com / security/advisories
openwall.com / lists/oss-security/2012/03/20/3
openwall.com / lists/oss-security/2012/03/20/8
openwall.com / lists/oss-security/2012/03/21/5
securitytracker.com / id
ubuntu.com / usn/USN-1436-1