email_in.pl in Bugzilla 2.23.4, 3.0.x before 3.0.4, and 3.1.x before 3.1.4 allows remote authenticated users to more easily spoof the changer of a bug via a @reporter command in the body of an e-mail message, which overrides the e-mail address as normally obtained from the From e-mail header. NOTE: since From headers are easily spoofed, this only crosses privilege boundaries in environments that provide additional verification of e-mail addresses.

References

• https://nvd.nist.gov/vuln/detail/CVE-2008-2105
• https://bugzilla.mozilla.org/show_bug.cgi?id=419188
• https://exchange.xforce.ibmcloud.com/vulnerabilities/42235
• https://www.redhat.com/archives/fedora-package-announce/2008-May/msg00036.html
• https://www.redhat.com/archives/fedora-package-announce/2008-May/msg00098.html
• http://secunia.com/advisories/30064
• http://secunia.com/advisories/30167
• http://www.securityfocus.com/bid/29038
• http://www.securitytracker.com/id?1019969
• http://www.vupen.com/english/advisories/2008/1428/references
• http://www.bugzilla.org/security/2.20.5