gnupg2: memcpy with overlapping ranges (keybox_search.c)
Published Nov 20, 2019
5.5
MEDIUMCVSS 3.1
EPSS 2.47%
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."
Affected products
No data.
Configuration 1
Configuration 2
- 10.04
- 12.04
- 14.04
- 14.10
No data.
Red Hat Enterprise Linux 5
gnupg
Will not fix
Red Hat Enterprise Linux 5
gnupg2
Will not fix
Red Hat Enterprise Linux 6
gnupg2
Will not fix
Red Hat Enterprise Linux 7
gnupg2
Will not fix
| Product | Package | State | Advisory |
|---|---|---|---|
| Red Hat Enterprise Linux 5 | gnupg | Will not fix | n/a |
| Red Hat Enterprise Linux 5 | gnupg2 | Will not fix | n/a |
| Red Hat Enterprise Linux 6 | gnupg2 | Will not fix | n/a |
| Red Hat Enterprise Linux 7 | gnupg2 | Will not fix | n/a |
No package ranges for this CVE.
Remediation
Red Hat statement
Red Hat Product Security has rated this issue as having Low security impact. This issue is not currently planned to be addressed in future updates. For additional information, refer to the Issue Severity Classification: https://access.redhat.com/security/updates/classification/.
Metrics
No CVSS v4.0 score for this CVE.
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
No CVSS v3.0 score for this CVE.
AV:N/AC:M/Au:N/C:N/I:N/A:P
This CVE is not in the KEV list.
No CISA SSVC assessment for this CVE yet.
Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 1, 2026.
Score over time
2022–2026- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Percentile over time
- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Table of values (10 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 2.47% (0.02473) | 83.96th | v5 (v2026.06.15) |
| Jun 15, 2026 | 2.47% (0.02473) | 82.39th | v5 (v2026.06.15) |
| Mar 17, 2025 | 0.28% (0.00279) | 49.29th | v4 (v2025.03.14) |
| Dec 12, 2024 | 0.60% (0.00600) | 79.18th | v3 (v2023.03.01) |
| Feb 8, 2024 | 0.43% (0.00432) | 73.80th | v3 (v2023.03.01) |
| Mar 7, 2023 | 0.43% (0.00432) | 70.53th | v3 (v2023.03.01) |
| Mar 6, 2023 | 1.78% (0.01776) | 76.86th | v2 (v2022.01.01) |
| Feb 23, 2023 | 1.78% (0.01776) | 76.81th | v2 (v2022.01.01) |
| Apr 1, 2022 | 1.78% (0.01776) | 74.78th | v2 (v2022.01.01) |
| Feb 4, 2022 | 1.78% (0.01776) | 53.99th | v2 (v2022.01.01) |
References (13)
- http://git.gnupg.org/cgi-bin/gitweb.cgi?p=gnupg.git%3Ba=commit%3Bh=2183683bd633818dd031b090b5530951de76f392 x_refsource_MISC
- http://www.openwall.com/lists/oss-security/2015/02/13/14 x_refsource_MISCMailing ListThird Party Advisory
- http://www.openwall.com/lists/oss-security/2015/02/14/6 x_refsource_MISCMailing ListThird Party Advisory
- http://www.securityfocus.com/bid/72610 x_refsource_MISCThird Party AdvisoryVDB Entry
- http://www.ubuntu.com/usn/usn-2554-1/ x_refsource_MISCThird Party Advisory
- https://access.redhat.com/security/cve/CVE-2015-1607 Vendor Advisory
- https://blog.fuzzing-project.org/5-Multiple-issues-in-GnuPG-found-through-keyring-fuzzing-TFPA-0012015.html x_refsource_MISCThird Party Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=1193009 Issue Tracking
- https://lists.gnupg.org/pipermail/gnupg-announce/2015q1/000361.html x_refsource_MISCMailing ListRelease NotesVendor Advisory
- https://lists.gnupg.org/pipermail/gnupg-announce/2015q1/000362.html x_refsource_MISCMailing ListRelease NotesVendor Advisory
- https://lists.gnupg.org/pipermail/gnupg-announce/2015q1/000363.html x_refsource_MISCMailing ListRelease NotesVendor Advisory
- https://nvd.nist.gov/vuln/detail/CVE-2015-1607
- https://www.cve.org/CVERecord?id=CVE-2015-1607
Change history (0)
No recorded changes yet.