CVE-2015-3622

Public Exploit

Description

The _asn1_extract_der_octet function in lib/decoding.c in GNU Libtasn1 before 4.5 allows remote attackers to cause a denial of service (out-of-bounds heap read) via a crafted certificate.

Category

4.3
CVSS
Severity: Medium
CVSS 2.0 •
EPSS 6.06% Top 10%
Vendor Advisory gentoo.org Vendor Advisory fedoraproject.org Vendor Advisory redhat.com Vendor Advisory debian.org Vendor Advisory opensuse.org Vendor Advisory mandriva.com Vendor Advisory opensuse.org Vendor Advisory opensuse.org Vendor Advisory ubuntu.com
Affected: n/a n/a
Published at:
Updated at:

References

Link Tags
https://security.gentoo.org/glsa/201509-04 vendor advisory
http://www.securitytracker.com/id/1032246 vdb entry
http://lists.fedoraproject.org/pipermail/package-announce/2015-May/158225.html vendor advisory
https://access.redhat.com/errata/RHSA-2017:1860 vendor advisory
http://seclists.org/fulldisclosure/2015/Apr/109 mailing list exploit
http://www.debian.org/security/2015/dsa-3256 vendor advisory
https://lists.gnu.org/archive/html/help-libtasn1/2015-04/msg00000.html mailing list
http://lists.opensuse.org/opensuse-updates/2016-06/msg00047.html vendor advisory
http://www.mandriva.com/security/advisories?name=MDVSA-2015:232 vendor advisory
http://lists.opensuse.org/opensuse-updates/2015-08/msg00014.html vendor advisory
http://packetstormsecurity.com/files/131711/libtasn1-Heap-Overflow.html exploit
http://www.securityfocus.com/bid/74419 vdb entry
http://lists.opensuse.org/opensuse-updates/2016-06/msg00097.html vendor advisory
http://www.ubuntu.com/usn/USN-2604-1 vendor advisory

Frequently Asked Questions

What is the severity of CVE-2015-3622?
CVE-2015-3622 has been scored as a medium severity vulnerability.
How to fix CVE-2015-3622?
To fix CVE-2015-3622, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2015-3622 being actively exploited in the wild?
It is possible that CVE-2015-3622 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~6% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
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