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Vulnerability Details : CVE-2010-2547

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.
Publish Date : 2010-08-05 Last Update Date : 2010-12-10
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- CVSS Scores & Vulnerability Types

CVSS Score
5.1
Confidentiality Impact Partial (There is considerable informational disclosure.)
Integrity Impact Partial (Modification of some system files or information is possible, but the attacker does not have control over what can be modified, or the scope of what the attacker can affect is limited.)
Availability Impact Partial (There is reduced performance or interruptions in resource availability.)
Access Complexity High (Specialized access conditions exist. It is hard to exploit and several special conditions must be satisfied to exploit)
Authentication Not required (Authentication is not required to exploit the vulnerability.)
Gained Access None
Vulnerability Type(s) Denial Of ServiceExecute Code
CWE ID 399

- Additional Vendor Supplied Data

Vendor Impact CVSS Score CVSS Vector Report Date Publish Date
Redhat moderate
5.1
AV:N/AC:H/Au:N/C:P/I:P/A:P 2010-07-23 2010-07-23
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- Related OVAL Definitions

Title Definition Id Class Family
CVE-2010-2547 oval:org.opensuse.security:def:20102547 unix
DEPRECATED: ELSA-2010-0603 -- gnupg2 security update (moderate) oval:org.mitre.oval:def:27257 unix
DSA-2076 gnupg2 -- use-after-free oval:org.mitre.oval:def:11631 unix
DSA-2076-1 gnupg2 - execution of arbitrary code oval:org.mitre.oval:def:20091 unix
ELSA-2010:0603: gnupg2 security update (Moderate) oval:org.mitre.oval:def:22992 unix
RHSA-2010:0603: gnupg2 security update (Moderate) oval:org.mitre.oval:def:22297 unix
RHSA-2010:0603: gnupg2 security update (Moderate) oval:com.redhat.rhsa:def:20100603 unix
OVAL (Open Vulnerability and Assessment Language) definitions define exactly what should be done to verify a vulnerability or a missing patch. Check out the OVAL definitions if you want to learn what you should do to verify a vulnerability.

- Products Affected By CVE-2010-2547

# Product Type Vendor Product Version Update Edition Language
1 Application Gnupg Gnupg 2.0 Version Details Vulnerabilities
2 Application Gnupg Gnupg 2.0.1 Version Details Vulnerabilities
3 Application Gnupg Gnupg 2.0.3 Version Details Vulnerabilities
4 Application Gnupg Gnupg 2.0.4 Version Details Vulnerabilities
5 Application Gnupg Gnupg 2.0.5 Version Details Vulnerabilities
6 Application Gnupg Gnupg 2.0.6 Version Details Vulnerabilities
7 Application Gnupg Gnupg 2.0.7 Version Details Vulnerabilities
8 Application Gnupg Gnupg 2.0.8 Version Details Vulnerabilities
9 Application Gnupg Gnupg 2.0.10 Version Details Vulnerabilities
10 Application Gnupg Gnupg 2.0.11 Version Details Vulnerabilities
11 Application Gnupg Gnupg 2.0.12 Version Details Vulnerabilities
12 Application Gnupg Gnupg 2.0.13 Version Details Vulnerabilities
13 Application Gnupg Gnupg 2.0.14 Version Details Vulnerabilities
14 Application Gnupg Gnupg 2.0.15 Version Details Vulnerabilities
15 Application Gnupg Gnupg 2.0.16 Version Details Vulnerabilities

- Number Of Affected Versions By Product

Vendor Product Vulnerable Versions
Gnupg Gnupg 15

- References For CVE-2010-2547

http://lists.fedoraproject.org/pipermail/package-announce/2010-August/044935.html
FEDORA FEDORA-2010-11413
http://lists.opensuse.org/opensuse-security-announce/2010-11/msg00001.html
SUSE SUSE-SR:2010:020
http://secunia.com/advisories/38877
SECUNIA 38877
http://secunia.com/advisories/40718
SECUNIA 40718
http://secunia.com/advisories/40841
SECUNIA 40841
http://slackware.com/security/viewer.php?l=slackware-security&y=2010&m=slackware-security.462008
SLACKWARE SSA:2010-240-01
https://issues.rpath.com/browse/RPL-3229 CONFIRM
http://www.vupen.com/english/advisories/2010/3125
VUPEN ADV-2010-3125
http://lists.gnupg.org/pipermail/gnupg-announce/2010q3/000302.html
MLIST [gnupg-announce] 20100723 [Announce] Security Alert for GnuPG 2.0 - Realloc bug in GPGSM
http://www.debian.org/security/2010/dsa-2076
DEBIAN DSA-2076
http://www.securitytracker.com/id?1024247
SECTRACK 1024247
http://www.mandriva.com/security/advisories?name=MDVSA-2010:143
MANDRIVA MDVSA-2010:143
http://wiki.rpath.com/wiki/Advisories:rPSA-2010-0076 CONFIRM
http://www.securityfocus.com/bid/41945
BID 41945 GnuPG 'GPGSM Tool' Certificate Importing Remote Code Execution Vulnerability Release Date:2010-11-03
http://www.vupen.com/english/advisories/2010/1988
VUPEN ADV-2010-1988
http://www.vupen.com/english/advisories/2010/1950
VUPEN ADV-2010-1950
http://www.vupen.com/english/advisories/2010/1931
VUPEN ADV-2010-1931
http://www.vupen.com/english/advisories/2010/2217
VUPEN ADV-2010-2217

- Metasploit Modules Related To CVE-2010-2547

There are not any metasploit modules related to this CVE entry (Please visit www.metasploit.com for more information)


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