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Vulnerability record · CVE-2010-2547 · published 5 August 2010

CVE-2010-2547: Gnupg use after free vulnerability

Gnupg · Gnupg

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.

8.1 CVSS 3.1 High EPSS 5.3% · top 7.7% CWE-416 · Use after free
8.1CVSS 3.1 base score, v2 5.1
5.3%EPSS exploitation probability, 30 days
NoNot in CISA KEV
3Affected product versions listed by NVD
36References
16 Jun 2026Last modified by NVD

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.

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

Affected products

3 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

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

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Source: NIST National Vulnerability Database (record CVE-2010-2547), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.