CVE-2010-2547

Name: CVE-2010-2547
Creator: NVD / NIST
Published: 2010-08-05T18:17:57.243+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 8.1/10EPSS 5.34%

Last modified Jun 16, 2026

CVE-2010-2547 is a high-severity vulnerability rated 8.1/10 on the CVSS scale. 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.. EPSS estimates a 5.34% chance of exploitation in the next 30 days.

Description

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.

Metrics

CVSS 3.1

8.1/10

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

EPSS Probability

5.34%

91.6th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-416

Affected Software

Vendor	Product	Versions
Gnupg	Gnupg	>= 2.0.0, <= 2.0.16
Fedoraproject	Fedora	13
Debian	Debian Linux	5.0

References

http://lists.fedoraproject.org/pipermail/package-announce/2010-August/044935.htmlMailing List, Third Party Advisory
http://lists.gnupg.org/pipermail/gnupg-announce/2010q3/000302.htmlPatch, Vendor Advisory
http://lists.opensuse.org/opensuse-security-announce/2010-11/msg00001.htmlMailing List, Third Party Advisory
http://secunia.com/advisories/38877Broken Link, Vendor Advisory
http://secunia.com/advisories/40718Broken Link, Vendor Advisory
http://secunia.com/advisories/40841Broken Link, Vendor Advisory
http://slackware.com/security/viewer.php?l=slackware-security&y=2010&m=slackware-security.462008Broken Link
http://wiki.rpath.com/wiki/Advisories:rPSA-2010-0076Broken Link
http://www.debian.org/security/2010/dsa-2076Mailing List, Third Party Advisory
http://www.mandriva.com/security/advisories?name=MDVSA-2010:143Broken Link
http://www.securityfocus.com/bid/41945Broken Link, Third Party Advisory, VDB Entry
http://www.securitytracker.com/id?1024247Broken Link, Third Party Advisory, VDB Entry
http://www.vupen.com/english/advisories/2010/1931Broken Link, Vendor Advisory
http://www.vupen.com/english/advisories/2010/1950Broken Link, Vendor Advisory
http://www.vupen.com/english/advisories/2010/1988Broken Link, Vendor Advisory
http://www.vupen.com/english/advisories/2010/2217Broken Link
http://www.vupen.com/english/advisories/2010/3125Broken Link
https://issues.rpath.com/browse/RPL-3229Broken Link
http://lists.fedoraproject.org/pipermail/package-announce/2010-August/044935.htmlMailing List, Third Party Advisory
http://lists.gnupg.org/pipermail/gnupg-announce/2010q3/000302.htmlPatch, Vendor Advisory
http://lists.opensuse.org/opensuse-security-announce/2010-11/msg00001.htmlMailing List, Third Party Advisory
http://secunia.com/advisories/38877Broken Link, Vendor Advisory
http://secunia.com/advisories/40718Broken Link, Vendor Advisory
http://secunia.com/advisories/40841Broken Link, Vendor Advisory
http://slackware.com/security/viewer.php?l=slackware-security&y=2010&m=slackware-security.462008Broken Link
http://wiki.rpath.com/wiki/Advisories:rPSA-2010-0076Broken Link
http://www.debian.org/security/2010/dsa-2076Mailing List, Third Party Advisory
http://www.mandriva.com/security/advisories?name=MDVSA-2010:143Broken Link
http://www.securityfocus.com/bid/41945Broken Link, Third Party Advisory, VDB Entry
http://www.securitytracker.com/id?1024247Broken Link, Third Party Advisory, VDB Entry
http://www.vupen.com/english/advisories/2010/1931Broken Link, Vendor Advisory
http://www.vupen.com/english/advisories/2010/1950Broken Link, Vendor Advisory
http://www.vupen.com/english/advisories/2010/1988Broken Link, Vendor Advisory
http://www.vupen.com/english/advisories/2010/2217Broken Link
http://www.vupen.com/english/advisories/2010/3125Broken Link
https://issues.rpath.com/browse/RPL-3229Broken Link

Timeline

Published: Aug 5, 2010
Last Modified: Jun 16, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2010-2547?

How severe is CVE-2010-2547?

CVE-2010-2547 has a CVSS score of 8.1/10 (HIGH severity). The EPSS model estimates a 5.34% probability of exploitation in the next 30 days.

How do I fix CVE-2010-2547?

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-2010-2547?

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

Scan your code now

Source: NVD / NIST