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Fencer Intel
high 8.1

CVE-2010-2547 json

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…

published 16y ago modified 4mo ago also EUVD-2010-2551

cvss
8.1
version 3.1, NVD
cisa kev
Not listed
not in CISA's catalog
epss
5.3%
EPSS 5.3% chance of exploitation in 30 days, percentile 92%
public exploits
0
none known

Summary

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.

Patch / fix

  • gnupg2 Debian 14, Debian 13, Debian 12 2.0.14-2

debian advisories DEBIAN-CVE-2010-2547

  • gnupg2 RHEL 5 2.0.10-3.el5_5.1

red hat advisories RHSA-2010:0603

  • gpg2 openSUSE Tumbleweed 2.1.16-1.1

opensuse advisories openSUSE-SU-2024:10102-1

Is CVE-2010-2547 in your stack? Fencer shows which of your repositories are affected as soon as an advisory lands, and opens the fix as a pull request.

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Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2010-2547 updated cvss 5.1

2: use-after-free when importing certificate with many alternate names

  • Red Hat Enterprise Linux (v. 5 server) gnupg2 2.0.10-3.el5_5.1 Red Hat Enterprise Linux Desktop (v. 5 client) gnupg2 2.0.10-3.el5_5.1
    fixed: vendor fix RHSA-2010:0603
  • Red Hat Enterprise Linux 6 gnupg2, gnupg2-smime
    not affected: vulnerable code not present

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

Exploit prediction

5.34% chance of exploitation in the next 30 days, higher than 92% of all scored CVEs (FIRST EPSS, 2026-11-09).

CVSS scores

assigned by version score vector
NVD 3.1 8.1 CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
NVD 2.0 5.1 AV:N/AC:H/Au:N/C:P/I:P/A:P

Classification

Weakness

References

Sources

Fencer Intel keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.