Input validation error in GNU GnuPG
| Risk | Medium |
| Patch available | YES |
| Number of vulnerabilities | 1 |
| CVE-ID | CVE-2010-2547 |
| CWE-ID | CWE-20 |
| Exploitation vector | Network |
| Public exploit | N/A |
| Vulnerable software Subscribe |
GnuPG Client/Desktop applications / Encryption software |
| Vendor | GNU |
Security Bulletin
This security bulletin contains one medium risk vulnerability.
1) Input validation error
EUVDB-ID: #VU32850
Risk: Medium
CVSSv3.1: 4.9 [CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:L/E:U/RL:O/RC:C]
CVE-ID: CVE-2010-2547
CWE-ID:
CWE-20 - Improper input validation
Exploit availability: No
DescriptionThe vulnerability allows remote attackers to perform a denial of service (DoS) attack.
The vulnerability exists due to insufficient validation of user-supplied input. A remote attacker can 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.
MitigationUpdate to version 2.0.17.
Vulnerable software versionsGnuPG: 1.2.0 - 2.0.16
External linkshttp://lists.fedoraproject.org/pipermail/package-announce/2010-August/044935.html
http://lists.gnupg.org/pipermail/gnupg-announce/2010q3/000302.html
http://lists.opensuse.org/opensuse-security-announce/2010-11/msg00001.html
http://secunia.com/advisories/38877
http://secunia.com/advisories/40718
http://secunia.com/advisories/40841
http://slackware.com/security/viewer.php?l=slackware-security&y=2010&m=slackware-security.462008
http://wiki.rpath.com/wiki/Advisories:rPSA-2010-0076
http://www.debian.org/security/2010/dsa-2076
http://www.mandriva.com/security/advisories?name=MDVSA-2010:143
http://www.securityfocus.com/bid/41945
http://www.securitytracker.com/id?1024247
http://www.vupen.com/english/advisories/2010/1931
http://www.vupen.com/english/advisories/2010/1950
http://www.vupen.com/english/advisories/2010/1988
http://www.vupen.com/english/advisories/2010/2217
http://www.vupen.com/english/advisories/2010/3125
http://issues.rpath.com/browse/RPL-3229
Q & A
Can this vulnerability be exploited remotely?
Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.
Is there known malware, which exploits this vulnerability?
No. We are not aware of malware exploiting this vulnerability.
