Vulnerabilities > CVE-2007-5972 - Buffer Errors vulnerability in MIT Kerberos 5 1.5
Attack vector
NETWORK Attack complexity
LOW Privileges required
SINGLE Confidentiality impact
COMPLETE Integrity impact
COMPLETE Availability impact
COMPLETE Summary
Double free vulnerability in the krb5_def_store_mkey function in lib/kdb/kdb_default.c in MIT Kerberos 5 (krb5) 1.5 has unknown impact and remote authenticated attack vectors. NOTE: the free operations occur in code that stores the krb5kdc master key, and so the attacker must have privileges to store this key.
Vulnerable Configurations
| Part | Description | Count |
|---|---|---|
| Application | 1 |
Common Weakness Enumeration (CWE)
Common Attack Pattern Enumeration and Classification (CAPEC)
- Buffer Overflow via Environment Variables This attack pattern involves causing a buffer overflow through manipulation of environment variables. Once the attacker finds that they can modify an environment variable, they may try to overflow associated buffers. This attack leverages implicit trust often placed in environment variables.
- Overflow Buffers Buffer Overflow attacks target improper or missing bounds checking on buffer operations, typically triggered by input injected by an attacker. As a consequence, an attacker is able to write past the boundaries of allocated buffer regions in memory, causing a program crash or potentially redirection of execution as per the attackers' choice.
- Client-side Injection-induced Buffer Overflow This type of attack exploits a buffer overflow vulnerability in targeted client software through injection of malicious content from a custom-built hostile service.
- Filter Failure through Buffer Overflow In this attack, the idea is to cause an active filter to fail by causing an oversized transaction. An attacker may try to feed overly long input strings to the program in an attempt to overwhelm the filter (by causing a buffer overflow) and hoping that the filter does not fail securely (i.e. the user input is let into the system unfiltered).
- MIME Conversion An attacker exploits a weakness in the MIME conversion routine to cause a buffer overflow and gain control over the mail server machine. The MIME system is designed to allow various different information formats to be interpreted and sent via e-mail. Attack points exist when data are converted to MIME compatible format and back.
Nessus
NASL family SuSE Local Security Checks NASL id SUSE_KRB5-4852.NASL description This update fixes multiple vulnerabilties in krb5. It last seen 2020-06-01 modified 2020-06-02 plugin id 29992 published 2008-01-16 reporter This script is Copyright (C) 2008-2019 Tenable Network Security, Inc. source https://www.tenable.com/plugins/nessus/29992 title SuSE 10 Security Update : Kerberos (ZYPP Patch Number 4852) NASL family Ubuntu Local Security Checks NASL id UBUNTU_USN-924-1.NASL description Sol Jerome discovered that the Kerberos kadmind service did not correctly free memory. An unauthenticated remote attacker could send specially crafted traffic to crash the kadmind process, leading to a denial of service. (CVE-2010-0629) It was discovered that Kerberos did not correctly free memory in the GSSAPI library. If a remote attacker were able to manipulate an application using GSSAPI carefully, the service could crash, leading to a denial of service. (Ubuntu 8.10 was not affected.) (CVE-2007-5901, CVE-2007-5971) It was discovered that Kerberos did not correctly free memory in the GSSAPI and kdb libraries. If a remote attacker were able to manipulate an application using these libraries carefully, the service could crash, leading to a denial of service. (Only Ubuntu 8.04 LTS was affected.) (CVE-2007-5902, CVE-2007-5972). Note that Tenable Network Security has extracted the preceding description block directly from the Ubuntu security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues. last seen 2020-06-01 modified 2020-06-02 plugin id 65123 published 2013-03-09 reporter Ubuntu Security Notice (C) 2010-2019 Canonical, Inc. / NASL script (C) 2013-2019 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/65123 title Ubuntu 8.04 LTS / 8.10 / 9.04 : krb5 vulnerabilities (USN-924-1) NASL family Ubuntu Local Security Checks NASL id UBUNTU_USN-940-1.NASL description It was discovered that Kerberos did not correctly free memory in the GSSAPI and kdb libraries. If a remote attacker were able to manipulate an application using these libraries carefully, the service could crash, leading to a denial of service. (Only Ubuntu 6.06 LTS was affected.) (CVE-2007-5902, CVE-2007-5971, CVE-2007-5972) Joel Johnson, Brian Almeida, and Shawn Emery discovered that Kerberos did not correctly verify certain packet structures. An unauthenticated remote attacker could send specially crafted traffic to cause the KDC or kadmind services to crash, leading to a denial of service. (CVE-2010-1320, CVE-2010-1321). Note that Tenable Network Security has extracted the preceding description block directly from the Ubuntu security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues. last seen 2020-06-01 modified 2020-06-02 plugin id 46688 published 2010-05-20 reporter Ubuntu Security Notice (C) 2010-2019 Canonical, Inc. / NASL script (C) 2010-2019 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/46688 title Ubuntu 6.06 LTS / 8.04 LTS / 9.04 / 9.10 : krb5 vulnerabilities (USN-940-1) NASL family SuSE Local Security Checks NASL id SUSE_KRB5-4851.NASL description This update fixes multiple vulnerabilties in krb5. It last seen 2020-06-01 modified 2020-06-02 plugin id 29991 published 2008-01-16 reporter This script is Copyright (C) 2008-2019 Tenable Network Security, Inc. source https://www.tenable.com/plugins/nessus/29991 title openSUSE 10 Security Update : krb5 (krb5-4851)
Statements
| contributor | Mark J Cox |
| lastmodified | 2007-12-14 |
| organization | Red Hat |
| statement | This issue is not a vulnerability, for more information see http://marc.info/?m=119743235325151 |
References
- http://bugs.gentoo.org/show_bug.cgi?id=199211
- http://osvdb.org/44747
- http://seclists.org/fulldisclosure/2007/Dec/0176.html
- http://seclists.org/fulldisclosure/2007/Dec/0321.html
- http://secunia.com/advisories/28636
- http://secunia.com/advisories/39290
- http://secunia.com/advisories/39784
- http://ubuntu.com/usn/usn-924-1
- http://www.novell.com/linux/security/advisories/suse_security_summary_report.html
- http://www.securityfocus.com/bid/26750
- http://www.ubuntu.com/usn/USN-940-1
- http://www.vupen.com/english/advisories/2010/1192
- https://issues.rpath.com/browse/RPL-2012