Description
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.
CVSS breakdown
CVSS 3.1
Attack Vector
Network
Attack Complexity
High
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High
Affected products
- Debian / debian_linux5.0 – 5.0
- fedoraproject / fedora13 – 13
- GnuPG / GnuPG2.0.0 – 2.0.16
References
- VENDOR_ADVISORYhttp://www.mandriva.com/security/advisories?name=MDVSA-2010:143
- VENDOR_ADVISORYhttp://www.vupen.com/english/advisories/2010/1988
- MAILING_LISThttp://lists.opensuse.org/opensuse-security-announce/2010-11/msg00001.html
- MISChttps://issues.rpath.com/browse/RPL-3229
- VENDOR_ADVISORYhttp://www.vupen.com/english/advisories/2010/1931
- MISChttp://www.securityfocus.com/bid/41945
- MAILING_LISThttp://lists.fedoraproject.org/pipermail/package-announce/2010-August/044935.html
- VENDOR_ADVISORYhttp://www.debian.org/security/2010/dsa-2076
- MISChttp://www.securitytracker.com/id?1024247
- MAILING_LISThttp://lists.gnupg.org/pipermail/gnupg-announce/2010q3/000302.html
- VENDOR_ADVISORYhttp://secunia.com/advisories/38877
- VENDOR_ADVISORYhttp://secunia.com/advisories/40841
- VENDOR_ADVISORYhttp://wiki.rpath.com/wiki/Advisories:rPSA-2010-0076
- VENDOR_ADVISORYhttp://secunia.com/advisories/40718
- VENDOR_ADVISORYhttp://www.vupen.com/english/advisories/2010/3125
- VENDOR_ADVISORYhttp://www.vupen.com/english/advisories/2010/1950
- MISChttp://slackware.com/security/viewer.php?l=slackware-security&y=2010&m=slackware-security.462008
- VENDOR_ADVISORYhttp://www.vupen.com/english/advisories/2010/2217