Mutt GECOS buffer overflow
| mutt-gecos-bo (34441) |  High Risk |
Description:
Mutt is vulnerable to a buffer overflow, caused by improper bounds checking. By sending multiple "&" characters in the GECOS field, a local attacker could overflow a buffer and execute arbitrary code on the system with elevated privileges.
Note: In order to execute code on the system with elevated privileges, the attacker would first need to have a real name in an authenticated alias file.
*CVSS:
| Base Score: | 3.9 |
| Access Vector: | Local |
| Access Complexity: | High |
| Authentication: | Not Required |
| Confidentiality Impact: | Partial |
| Integrity Impact: | Partial |
| Availability Impact: | Partial |
| Temporal Score: | 2.7 |
| Exploitability: | Unproven |
| Remediation Level: | Official-Fix |
| Report Confidence: | Uncorroborated |
Consequences:
Gain Privileges
Remedy:
For Red Hat Linux (mutt):
Refer to RHSA-2007:0386 for patch, upgrade, or suggested workaround information. See References.
For Mandriva Linux (mutt):
Refer to MDKSA-2007:113 for patch, upgrade, or suggested workaround information. See References.
For other distributions:
Contact your vendor for upgrade or patch information.
References:
- Mutt Web site: The Mutt E-Mail Client.
- Red Hat Bugzilla Bug 239890: Buffer overflow in mutt's gecos structure handling.
- ASA-2007-296: Mutt security update (RHSA-2007-0386)
- BID-24192: Mutt Mutt_Gecos_Name Function Local Buffer Overflow Vulnerability
- CVE-2007-2683: Buffer overflow in Mutt 1.4.2 might allow local users to execute arbitrary code via & characters in the GECOS field, which triggers the overflow during alias expansion.
- MDKSA-2007:113: Updated mutt packages fix vulnerabilities
- RHSA-2007-0386: Moderate: mutt security update
- SA25408: Mutt GECOS Name Processing Buffer Overflow Vulnerability
- SECTRACK ID: 1018066: Mutt mutt_gecos_name() Buffer Overflow May Let Local Users Gain Elevated Privileges
Platforms Affected:
- MandrakeSoft Mandrake Linux 2007
- MandrakeSoft Mandrake Linux 2007 X86_64
- MandrakeSoft Mandrake Linux 2007.1
- MandrakeSoft Mandrake Linux 2007.1 X86_64
- MandrakeSoft Mandrake Linux 2008.0 X86_64
- MandrakeSoft Mandrake Linux Corporate Server 3.0 X86_64
- MandrakeSoft Mandrake Linux Corporate Server 3.0
- Michael R. Elkins and Jeremy Blosser Mutt 1.4.2
- RedHat Enterprise Linux 3 AS
- RedHat Enterprise Linux 3 Desktop
- RedHat Enterprise Linux 3 ES
- RedHat Enterprise Linux 3 WS
- RedHat Enterprise Linux 4 Desktop
- RedHat Enterprise Linux 4 WS
- RedHat Enterprise Linux 4 ES
- RedHat Enterprise Linux 4 AS
- RedHat Enterprise Linux 5
- RedHat Enterprise Linux 5 Client
- RedHat Enterprise Linux 5 Client Workstation
- RedHat Enterprise Linux 5 Server
- RedHat Enterprise Linux Desktop 5.0
Reported:
May 11, 2007
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The information within this database may change without notice. Use of this information constitutes acceptance for use in an AS IS condition. There are NO warranties, implied or otherwise, with regard to this information or its use. Any use of this information is at the user's risk. In no event shall IBM be held liable for any damages whatsoever arising out of or in connection with the use or spread of this information.