CVE-2015-1607

Name: CVE-2015-1607
Creator: NVD / NIST
Published: 2019-11-20T19:15:11.25+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 5.5/10EPSS 2.47%

Last modified Jun 17, 2026

CVE-2015-1607 is a medium-severity vulnerability rated 5.5/10 on the CVSS scale. kbx/keybox-search.c in GnuPG before 1.4.19, 2.0.x before 2.0.27, and 2.1.x before 2.1.2 does not properly handle bitwise left-shifts, which allows remote attackers to cause a denial of service (invalid read operation) via a crafted keyring file, related to sign extensions and "memcpy with overlapping ranges.". EPSS estimates a 2.47% chance of exploitation in the next 30 days.

Description

kbx/keybox-search.c in GnuPG before 1.4.19, 2.0.x before 2.0.27, and 2.1.x before 2.1.2 does not properly handle bitwise left-shifts, which allows remote attackers to cause a denial of service (invalid read operation) via a crafted keyring file, related to sign extensions and "memcpy with overlapping ranges."

Metrics

CVSS 3.1

5.5/10

CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

EPSS Probability

2.47%

82.5th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-20

Affected Software

Vendor	Product	Versions
Gnupg	Gnupg	< 1.4.19
Gnupg	Gnupg	>= 2.0, < 2.0.27
Gnupg	Gnupg	>= 2.1.0, < 2.1.2
Canonical	Ubuntu Linux	10.04
Canonical	Ubuntu Linux	12.04
Canonical	Ubuntu Linux	14.04
Canonical	Ubuntu Linux	14.10

References

http://git.gnupg.org/cgi-bin/gitweb.cgi?p=gnupg.git%3Ba=commit%3Bh=2183683bd633818dd031b090b5530951de76f392
http://www.openwall.com/lists/oss-security/2015/02/13/14Mailing List, Third Party Advisory
http://www.openwall.com/lists/oss-security/2015/02/14/6Mailing List, Third Party Advisory
http://www.securityfocus.com/bid/72610Third Party Advisory, VDB Entry
http://www.ubuntu.com/usn/usn-2554-1/Third Party Advisory
https://blog.fuzzing-project.org/5-Multiple-issues-in-GnuPG-found-through-keyring-fuzzing-TFPA-0012015.htmlThird Party Advisory
https://lists.gnupg.org/pipermail/gnupg-announce/2015q1/000361.htmlMailing List, Release Notes, Vendor Advisory
https://lists.gnupg.org/pipermail/gnupg-announce/2015q1/000362.htmlMailing List, Release Notes, Vendor Advisory
https://lists.gnupg.org/pipermail/gnupg-announce/2015q1/000363.htmlMailing List, Release Notes, Vendor Advisory
http://git.gnupg.org/cgi-bin/gitweb.cgi?p=gnupg.git%3Ba=commit%3Bh=2183683bd633818dd031b090b5530951de76f392
http://www.openwall.com/lists/oss-security/2015/02/13/14Mailing List, Third Party Advisory
http://www.openwall.com/lists/oss-security/2015/02/14/6Mailing List, Third Party Advisory
http://www.securityfocus.com/bid/72610Third Party Advisory, VDB Entry
http://www.ubuntu.com/usn/usn-2554-1/Third Party Advisory
https://blog.fuzzing-project.org/5-Multiple-issues-in-GnuPG-found-through-keyring-fuzzing-TFPA-0012015.htmlThird Party Advisory
https://lists.gnupg.org/pipermail/gnupg-announce/2015q1/000361.htmlMailing List, Release Notes, Vendor Advisory
https://lists.gnupg.org/pipermail/gnupg-announce/2015q1/000362.htmlMailing List, Release Notes, Vendor Advisory
https://lists.gnupg.org/pipermail/gnupg-announce/2015q1/000363.htmlMailing List, Release Notes, Vendor Advisory

Timeline

Published: Nov 20, 2019
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2015-1607?

How severe is CVE-2015-1607?

CVE-2015-1607 has a CVSS score of 5.5/10 (MEDIUM severity). The EPSS model estimates a 2.47% probability of exploitation in the next 30 days.

How do I fix CVE-2015-1607?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2015-1607?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST