parse-packet.c in GnuPG (gpg) 1.4.3 and 1.9.20, and earlier versions,...

Vulnerability Description

parse-packet.c in GnuPG (gpg) 1.4.3 and 1.9.20, and earlier versions, allows remote attackers to cause a denial of service (gpg crash) and possibly overwrite memory via a message packet with a large length (long user ID string), which could lead to an integer overflow, as demonstrated using the --no-armor option.

References

• http://secunia.com/advisories/20899
• https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A10089
• http://secunia.com/advisories/20968
• http://secunia.com/advisories/20881
• http://cvs.gnupg.org/cgi-bin/viewcvs.cgi/trunk/g10/parse-packet.c?rev=4157&r1=4141&r2=4157
• http://www.securityfocus.com/archive/1/438751/100/0/threaded
• http://secunia.com/advisories/20783
• http://www.debian.org/security/2006/dsa-1107
• http://secunia.com/advisories/20811
• http://www.novell.com/linux/security/advisories/2006_18_sr.html
• http://seclists.org/lists/fulldisclosure/2006/May/0782.html
• http://secunia.com/advisories/21063
• http://secunia.com/advisories/21135
• http://secunia.com/advisories/20829
• http://www.vupen.com/english/advisories/2006/2450
• http://support.avaya.com/elmodocs2/security/ASA-2006-167.htm
• http://seclists.org/lists/fulldisclosure/2006/May/0789.html
• http://secunia.com/advisories/20801
• http://seclists.org/lists/fulldisclosure/2006/May/0774.html
• http://www.securityfocus.com/bid/18554
• https://usn.ubuntu.com/304-1/
• http://www.novell.com/linux/security/advisories/2006_38_security.html
• http://www.redhat.com/support/errata/RHSA-2006-0571.html
• http://www.mandriva.com/security/advisories?name=MDKSA-2006:110
• http://www.debian.org/security/2006/dsa-1115
• http://www.openpkg.com/security/advisories/OpenPKG-SA-2006.010.html
• ftp://patches.sgi.com/support/free/security/advisories/20060701-01-U
• http://secunia.com/advisories/21137
• http://secunia.com/advisories/21143
• http://secunia.com/advisories/21585
• http://securitytracker.com/id?1016519
• http://slackware.com/security/viewer.php?l=slackware-security&y=2006&m=slackware-security.457382
• https://exchange.xforce.ibmcloud.com/vulnerabilities/27245