CVE-2010-2547: Use After Free
First published: Thu Aug 05 2010(Updated: )
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.
Credit: secalert@redhat.com
| Affected Software | Affected Version | How to fix |
|---|---|---|
| GnuPG 2 (Gnu Privacy Guard) | >=2.0.0<=2.0.16 | |
| Fedora | =13 | |
| Debian | =5.0 | |
| GnuPG 2 (Gnu Privacy Guard) | =2.0 | |
| GnuPG 2 (Gnu Privacy Guard) | =2.0.1 | |
| GnuPG 2 (Gnu Privacy Guard) | =2.0.3 | |
| GnuPG 2 (Gnu Privacy Guard) | =2.0.4 | |
| GnuPG 2 (Gnu Privacy Guard) | =2.0.5 | |
| GnuPG 2 (Gnu Privacy Guard) | =2.0.6 | |
| GnuPG 2 (Gnu Privacy Guard) | =2.0.7 | |
| GnuPG 2 (Gnu Privacy Guard) | =2.0.8 | |
| GnuPG 2 (Gnu Privacy Guard) | =2.0.10 | |
| GnuPG 2 (Gnu Privacy Guard) | =2.0.11 | |
| GnuPG 2 (Gnu Privacy Guard) | =2.0.12 | |
| GnuPG 2 (Gnu Privacy Guard) | =2.0.13 | |
| GnuPG 2 (Gnu Privacy Guard) | =2.0.14 | |
| GnuPG 2 (Gnu Privacy Guard) | =2.0.15 | |
| GnuPG 2 (Gnu Privacy Guard) | =2.0.16 |
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Reference Links
- http://www.debian.org/security/2010/dsa-2076
- http://www.securitytracker.com/id?1024247
- http://secunia.com/advisories/38877
- http://secunia.com/advisories/40718
- http://www.mandriva.com/security/advisories?name=MDVSA-2010:143
- http://lists.gnupg.org/pipermail/gnupg-announce/2010q3/000302.html
- http://www.vupen.com/english/advisories/2010/1988
- http://www.vupen.com/english/advisories/2010/1931
- http://www.vupen.com/english/advisories/2010/1950
- http://lists.fedoraproject.org/pipermail/package-announce/2010-August/044935.html
- http://www.securityfocus.com/bid/41945
- http://secunia.com/advisories/40841
- http://www.vupen.com/english/advisories/2010/2217
- http://slackware.com/security/viewer.php?l=slackware-security&y=2010&m=slackware-security.462008
- http://lists.opensuse.org/opensuse-security-announce/2010-11/msg00001.html
- https://issues.rpath.com/browse/RPL-3229
- http://wiki.rpath.com/wiki/Advisories:rPSA-2010-0076
- http://www.vupen.com/english/advisories/2010/3125
Frequently Asked Questions
What is the severity of CVE-2010-2547?
CVE-2010-2547 has a medium severity, which can cause denial of service and potential arbitrary code execution.
How do I fix CVE-2010-2547?
To fix CVE-2010-2547, upgrade GnuPG to version 2.0.17 or later.
What software is affected by CVE-2010-2547?
CVE-2010-2547 affects GnuPG versions 2.0.0 through 2.0.16.
What type of vulnerability is CVE-2010-2547?
CVE-2010-2547 is a use-after-free vulnerability related to handling certificates.
Can CVE-2010-2547 lead to remote attacks?
Yes, CVE-2010-2547 can allow remote attackers to execute arbitrary code by exploiting the vulnerability.
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- version/gnupg 2 (gnu privacy guard)/2.0.16
- vendor/fedoraproject
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- version/fedora/13
- vendor/debian
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- version/gnupg 2 (gnu privacy guard)/2.0
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- version/gnupg 2 (gnu privacy guard)/2.0.10
- version/gnupg 2 (gnu privacy guard)/2.0.11
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