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CVE-2010-2547

Use-after-free vulnerability in kbx/keybox-blob.c in GPGSM in GnuPG 2.x through 2.0.16 allows...

8.1 HighFix available

Use-after-free vulnerability in kbx/keybox-blob.c in GPGSM in GnuPG 2.x through 2.0.16 allows remote attackers to cause a denial of service (crash) and possibly execute arbitrary code via a certificate with a large number of Subject Alternate Names, which is not properly handled in a realloc operation when importing the certificate or verifying its signature.

Attack profile

How easy it is to exploit

Attack vector
Network
Complexity
High
Privileges needed
None
User interaction
None

What an attacker can affect

Confidentiality
High
Integrity
High
Availability
High

Exploit likelihood

5.34%Down 2.9 points since Feb 4, 2022
90%50%10%1%

What each source reports

NVD Score used 8.1

Use-after-free vulnerability in kbx/keybox-blob.c in GPGSM in GnuPG 2.x through 2.0.16 allows remote attackers to cause a denial of service (crash) and possibly execute arbitrary code via a certificate with a large number of Subject Alternate Names, which is not properly handled in a realloc operation when importing the certificate or verifying its signature.

Record
CVE-2010-2547
CVSS 3.1
8.1 HighCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
CVSS 2.0
5.1 MediumAV:N/AC:H/Au:N/C:P/I:P/A:P
Weakness
CWE-416
Updated
2026-11-02
CVE List No score

Use-after-free vulnerability in kbx/keybox-blob.c in GPGSM in GnuPG 2.x through 2.0.16 allows remote attackers to cause a denial of service (crash) and possibly execute arbitrary code via a certificate with a large number of Subject Alternate Names, which is not properly handled in a realloc operation when importing the certificate or verifying its signature.

Record
CVE-2010-2547
Updated
2026-11-02
EUVDEUVD-2010-2551 No score

Use-after-free vulnerability in kbx/keybox-blob.c in GPGSM in GnuPG 2.x through 2.0.16 allows remote attackers to cause a denial of service (crash) and possibly execute arbitrary code via a certificate with a large number of Subject Alternate Names, which is not properly handled in a realloc operation when importing the certificate or verifying its signature.

Record
EUVD-2010-2551
Updated
2026-11-03
GitHub AdvisoriesGHSA-jjg3-cx5h-88wm 8.1

Use-after-free vulnerability in kbx/keybox-blob.c in GPGSM in GnuPG 2.x through 2.0.16 allows...

Use-after-free vulnerability in kbx/keybox-blob.c in GPGSM in GnuPG 2.x through 2.0.16 allows remote attackers to cause a denial of service (crash) and possibly execute arbitrary code via a certificate with a large number of Subject Alternate Names, which is not properly handled in a realloc operation when importing the certificate or verifying its signature.

Record
GHSA-jjg3-cx5h-88wm
CVSS 3.1
8.1 HighCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
Weakness
CWE-416
Updated
2026-11-02
OSV 8.1

Use-after-free vulnerability in kbx/keybox-blob.c in GPGSM in GnuPG 2.x through 2.0.16 allows remote attackers to cause a denial of service (crash) and possibly execute arbitrary code via a certificate with a large number of Subject Alternate Names, which is not properly handled in a realloc operation when importing the certificate or verifying its signature.

Record
CVE-2010-2547
CVSS 3.1
8.1 HighCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
Updated
2026-11-02
OSVDEBIAN-CVE-2010-2547 8.1

Use-after-free vulnerability in kbx/keybox-blob.c in GPGSM in GnuPG 2.x through 2.0.16 allows remote attackers to cause a denial of service (crash) and possibly execute arbitrary code via a certificate with a large number of Subject Alternate Names, which is not properly handled in a realloc operation when importing the certificate or verifying its signature.

Record
DEBIAN-CVE-2010-2547
CVSS 3.1
8.1 HighCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
Updated
2026-11-02
OSVopenSUSE-SU-2024:10102-1 No score

gpg2-2.1.16-1.1 on GA media

These are all security issues fixed in the gpg2-2.1.16-1.1 package on the GA media of openSUSE Tumbleweed.

Record
openSUSE-SU-2024:10102-1
Updated
2026-11-02

Affected products

Affected packages

Affected packages
PackageAffectedFixed
gnupg2
Debian:12
 before 2.0.14-2
2.0.14-2
gnupg2
Debian:13
 before 2.0.14-2
2.0.14-2
gnupg2
Debian:14
 before 2.0.14-2
2.0.14-2
gnupg2
Debian:5.0
 before 2.0.9-3.1+lenny1, plus listed versions
2.0.9-3.1
2.0.9-3.1+lenny1
gnupg2
Red Hat:enterprise_linux:5::client
 before 0:2.0.10-3.el5_5.1
0:2.0.10-3.el5_5.1
gnupg2-debuginfo
Red Hat:enterprise_linux:5::client
 before 0:2.0.10-3.el5_5.1
0:2.0.10-3.el5_5.1
gnupg2
Red Hat:enterprise_linux:5::server
 before 0:2.0.10-3.el5_5.1
0:2.0.10-3.el5_5.1
gnupg2-debuginfo
Red Hat:enterprise_linux:5::server
 before 0:2.0.10-3.el5_5.1
0:2.0.10-3.el5_5.1
gpg2
openSUSE:Tumbleweed
From an advisory covering 4 CVEs
 before 2.1.16-1.1
2.1.16-1.1

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-2010-2547 is a high vulnerability (CVSS 8.1) in Gnupg, published July 28, 2010. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 5.34%, the 92nd percentile. Fixed in gnupg2 2.0.14-2.

References

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