PT-2010-1015 · Gnu+1 · Gnupg+1
Peter Gutmann
·
Publicado
2010-08-04
·
Atualizado
2024-06-15
·
CVE-2010-2547
CVSS v3.1
8.1
Alta
| Vetor | AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H |
Name of the Vulnerable Software and Affected Versions
GnuPG versions 2.x through 2.0.16
Description
The issue is related to a use-after-free vulnerability in the kbx/keybox-blob.c file of GPGSM in GnuPG. This vulnerability can be exploited by remote attackers who send a certificate with a large number of Subject Alternate Names, which is not properly handled during a realloc operation when importing the certificate or verifying its signature. This can cause a denial of service (crash) and possibly allow the execution of arbitrary code. Additionally, there are multiple vulnerabilities in the gnupg-agent package that can lead to violations of confidentiality, integrity, and availability of protected information, and these can be exploited remotely.
Recommendations
For GnuPG versions 2.x through 2.0.16, update to a version later than 2.0.16 to resolve the issue.
As a temporary workaround, consider restricting the import of certificates with a large number of Subject Alternate Names to minimize the risk of exploitation.
Correção
DoS
Use After Free
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Enumeração de Fraquezas
Identificadores relacionados
Produtos afetados
Gnupg
Red Hat