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CVE-2015-1606

The keyring DB in GnuPG before 2.1.2 does not properly handle invalid packets, which allows...

5.5 MediumFix available

The keyring DB in GnuPG before 2.1.2 does not properly handle invalid packets, which allows remote attackers to cause a denial of service (invalid read and use-after-free) via a crafted keyring file.

Attack profile

How easy it is to exploit

Attack vector
Local
Complexity
Low
Privileges needed
None
User interaction
Required

What an attacker can affect

Confidentiality
None
Integrity
None
Availability
High

Exploit likelihood

1.92%Up 0.6 points since Feb 4, 2022
90%50%10%1%

What each source reports

NVD Score used 5.5

The keyring DB in GnuPG before 2.1.2 does not properly handle invalid packets, which allows remote attackers to cause a denial of service (invalid read and use-after-free) via a crafted keyring file.

Record
CVE-2015-1606
CVSS 3.1
5.5 MediumCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
CVSS 2.0
4.3 MediumAV:N/AC:M/Au:N/C:N/I:N/A:P
Weakness
CWE-416
Updated
2026-11-02
CVE List No score

The keyring DB in GnuPG before 2.1.2 does not properly handle invalid packets, which allows remote attackers to cause a denial of service (invalid read and use-after-free) via a crafted keyring file.

Record
CVE-2015-1606
Updated
2026-11-02
EUVDEUVD-2015-1737 No score

The keyring DB in GnuPG before 2.1.2 does not properly handle invalid packets, which allows remote attackers to cause a denial of service (invalid read and use-after-free) via a crafted keyring file.

Record
EUVD-2015-1737
Updated
2026-11-03
GitHub AdvisoriesGHSA-p6r5-7hm9-22q4 5.5

The keyring DB in GnuPG before 2.1.2 does not properly handle invalid packets, which allows...

The keyring DB in GnuPG before 2.1.2 does not properly handle invalid packets, which allows remote attackers to cause a denial of service (invalid read and use-after-free) via a crafted keyring file.

Record
GHSA-p6r5-7hm9-22q4
CVSS 3.1
5.5 MediumCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
Weakness
CWE-416
Updated
2026-11-02
OSV 5.5

The keyring DB in GnuPG before 2.1.2 does not properly handle invalid packets, which allows remote attackers to cause a denial of service (invalid read and use-after-free) via a crafted keyring file.

Record
CVE-2015-1606
CVSS 3.1
5.5 MediumCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
Updated
2026-11-02
OSVDEBIAN-CVE-2015-1606 5.5

The keyring DB in GnuPG before 2.1.2 does not properly handle invalid packets, which allows remote attackers to cause a denial of service (invalid read and use-after-free) via a crafted keyring file.

Record
DEBIAN-CVE-2015-1606
CVSS 3.1
5.5 MediumCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
Updated
2026-11-02
Show 6 moreShow less
OSVUBUNTU-CVE-2015-1606 5.5

The keyring DB in GnuPG before 2.1.2 does not properly handle invalid packets, which allows remote attackers to cause a denial of service (invalid read and use-after-free) via a crafted keyring file.

Record
UBUNTU-CVE-2015-1606
CVSS 3.1
5.5 MediumCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
Updated
2026-11-02
OSVMGASA-2015-0359 No score

Updated gnupg packages fix security vulnerabilities

Updated gnupg and gnupg2 packages fix security vulnerabilities:

Hanno Böck discovered that GnuPG incorrectly handled certain malformed keyrings. If a user or automated system were tricked into opening a malformed keyring, a remote attacker could use this issue to cause GnuPG to crash, resulting in a denial of service, or possibly execute arbitrary code (CVE-2015-1606, CVE-2015-1607).

Record
MGASA-2015-0359
Updated
2026-11-02
OSVSUSE-SU-2015:2170-1 No score

Security update for gpg2

This update for gpg2 fixes the following issues:

  • Fix cve-2015-1606 (bsc#918089)
    • Invalid memory read using a garbled keyring
    • 0001-Gpg-prevent-an-invalid-memory-read-using-a-garbled-k.patch
  • Fix cve-2015-1607 (bsc#918090)
    • Memcpy with overlapping ranges
    • 0001-Use-inline-functions-to-convert-buffer-data-to-scala.patch
Record
SUSE-SU-2015:2170-1
Updated
2026-11-02
OSVSUSE-SU-2015:2171-1 No score

Security update for gpg2

The gpg2 package was updated to fix the following security and non security issues:

  • CVE-2015-1606: Fixed invalid memory read using a garbled keyring (bsc#918089).

  • CVE-2015-1607: Fixed memcpy with overlapping ranges (bsc#918090).

  • bsc#955753: Fixed a regression of 'gpg --recv' due to keyserver import filter (also boo#952347).

Record
SUSE-SU-2015:2171-1
Updated
2026-11-02
OSVSUSE-SU-2015:2171-2 No score

Security update for gpg2

The gpg2 package was updated to fix the following security and non security issues:

  • CVE-2015-1606: Fixed invalid memory read using a garbled keyring (bsc#918089).

  • CVE-2015-1607: Fixed memcpy with overlapping ranges (bsc#918090).

  • bsc#955753: Fixed a regression of 'gpg --recv' due to keyserver import filter (also boo#952347).

Record
SUSE-SU-2015:2171-2
Updated
2026-11-02
OSVUSN-2554-1 No score

gnupg, gnupg2 vulnerabilities

Daniel Genkin, Lev Pachmanov, Itamar Pipman, and Eran Tromer discovered that GnuPG was susceptible to an attack via physical side channels. A local attacker could use this attack to possibly recover private keys. (CVE-2014-3591)

Daniel Genkin, Adi Shamir, and Eran Tromer discovered that GnuPG was susceptible to an attack via physical side channels. A local attacker could use this attack to possibly recover private keys. (CVE-2015-0837)

Hanno Böck discovered that GnuPG incorrectly handled certain malformed keyrings. If a user or automated system were tricked into opening a malformed keyring, a remote attacker could use this issue to cause GnuPG to crash, resulting in a denial of service, or possibly execute arbitrary code. (CVE-2015-1606, CVE-2015-1607)

In addition, this update improves GnuPG security by validating that the keys returned by keyservers match those requested.

Record
USN-2554-1
Updated
2026-11-02

Affected products

Affected packages

Affected packages
PackageAffectedFixed
gnupg2
Debian:12
 before 2.0.26-5
2.0.26-5
gnupg2
Debian:13
 before 2.0.26-5
2.0.26-5
gnupg2
Debian:14
 before 2.0.26-5
2.0.26-5
gnupg
Debian:6.0
From an advisory covering 3 CVEs
 before 1.4.10-4+squeeze7, plus listed versions
1.4.10-41.4.10-4+squeeze11.4.10-4+squeeze21.4.10-4+squeeze31.4.10-4+squeeze41.4.10-4+squeeze51.4.10-4+squeeze6
1.4.10-4+squeeze7
gnupg
Debian:7
From an advisory covering 3 CVEs
 before 1.4.12-7+deb7u7, plus listed versions
1.4.12-71.4.12-7+deb7u11.4.12-7+deb7u21.4.12-7+deb7u31.4.12-7+deb7u41.4.12-7+deb7u51.4.12-7+deb7u6
1.4.12-7+deb7u7
gnupg
Mageia:4
From an advisory covering 2 CVEs
 before 1.4.16-1.3.mga4
1.4.16-1.3.mga4
gnupg2
Mageia:4
From an advisory covering 2 CVEs
 before 2.0.22-3.2.mga4
2.0.22-3.2.mga4
gpg2
SUSE:Linux Enterprise Desktop 11 SP3
From an advisory covering 2 CVEs
 before 2.0.9-25.33.41.2
2.0.9-25.33.41.2
gpg2
SUSE:Linux Enterprise Desktop 11 SP4
From an advisory covering 2 CVEs
 before 2.0.9-25.33.41.2
2.0.9-25.33.41.2
gpg2
SUSE:Linux Enterprise Server 11 SP3
From an advisory covering 2 CVEs
 before 2.0.9-25.33.41.2
2.0.9-25.33.41.2
Show 14 moreShow less
Affected packages
PackageAffectedFixed
gpg2
SUSE:Linux Enterprise Server 11 SP3-TERADATA
From an advisory covering 2 CVEs
 before 2.0.9-25.33.41.2
2.0.9-25.33.41.2
gpg2
SUSE:Linux Enterprise Server for SAP Applications 11 SP3
From an advisory covering 2 CVEs
 before 2.0.9-25.33.41.2
2.0.9-25.33.41.2
gpg2
SUSE:Linux Enterprise Server 11 SP4
From an advisory covering 2 CVEs
 before 2.0.9-25.33.41.2
2.0.9-25.33.41.2
gpg2
SUSE:Linux Enterprise Server for SAP Applications 11 SP4
From an advisory covering 2 CVEs
 before 2.0.9-25.33.41.2
2.0.9-25.33.41.2
gpg2
SUSE:Linux Enterprise Desktop 12
From an advisory covering 2 CVEs
 before 2.0.24-3.2
2.0.24-3.2
gpg2
SUSE:Linux Enterprise Server 12
From an advisory covering 2 CVEs
 before 2.0.24-3.2
2.0.24-3.2
gpg2
SUSE:Linux Enterprise Server for SAP Applications 12
From an advisory covering 2 CVEs
 before 2.0.24-3.2
2.0.24-3.2
gpg2
SUSE:Linux Enterprise Desktop 12 SP1
From an advisory covering 2 CVEs
 before 2.0.24-3.2
2.0.24-3.2
gpg2
SUSE:Linux Enterprise Server 12 SP1
From an advisory covering 2 CVEs
 before 2.0.24-3.2
2.0.24-3.2
gpg2
SUSE:Linux Enterprise Server for SAP Applications 12 SP1
From an advisory covering 2 CVEs
 before 2.0.24-3.2
2.0.24-3.2
gnupg
Ubuntu:14.04:LTS
 before 1.4.16-1ubuntu2.3, plus listed versions
1.4.14-1ubuntu21.4.15-1.1ubuntu11.4.15-1.1ubuntu21.4.15-2ubuntu11.4.16-1ubuntu11.4.16-1ubuntu21.4.16-1ubuntu2.1
1.4.16-1ubuntu2.3
gnupg2
Ubuntu:14.04:LTS
 before 2.0.22-3ubuntu1.3, plus listed versions
2.0.20-1ubuntu32.0.22-1ubuntu12.0.22-3ubuntu12.0.22-3ubuntu1.1
2.0.22-3ubuntu1.3
gnupg
Ubuntu:14.04:LTS
From an advisory covering 5 CVEs
 before 1.4.16-1ubuntu2.3, plus listed versions
1.4.14-1ubuntu21.4.15-1.1ubuntu11.4.15-1.1ubuntu21.4.15-2ubuntu11.4.16-1ubuntu11.4.16-1ubuntu21.4.16-1ubuntu2.1
1.4.16-1ubuntu2.3
gnupg2
Ubuntu:14.04:LTS
From an advisory covering 5 CVEs
 before 2.0.22-3ubuntu1.3, plus listed versions
2.0.20-1ubuntu32.0.22-1ubuntu12.0.22-3ubuntu12.0.22-3ubuntu1.1
2.0.22-3ubuntu1.3

History

History
RecordedChangedSources
affected, facts
aliasesEUVD
first indexedCVE List, GitHub Advisories, NVD, OSV

Dates are when Every CVE recorded each change. Upstream dates may differ.

In short

CVE-2015-1606 is a medium vulnerability (CVSS 5.5) in Gnupg, published February 16, 2015. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 1.92%, the 80th percentile. Fixed in gnupg2 2.0.26-5.

References

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