CVE-2018-5709
published 2018-01-16CVE-2018-5709: An issue was discovered in MIT Kerberos 5 (aka krb5) through 1.16. There is a variable "dbentry->n_key_data" in kadmin/dbutil/dump.c that can store 16-bit data…
PriorityP340high7.5CVSS 3.0
AVNACLPRNUINSUCNIHAN
EPSS
2.07%
79.0th percentile
An issue was discovered in MIT Kerberos 5 (aka krb5) through 1.16. There is a variable "dbentry->n_key_data" in kadmin/dbutil/dump.c that can store 16-bit data but unknowingly the developer has assigned a "u4" variable to it, which is for 32-bit data. An attacker can use this vulnerability to affect other artifacts of the database as we know that a Kerberos database dump file contains trusted data.
Affected
2 ranges
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| debian | krb5 | — | — |
| mit | kerberos | <= 5-1.16 | — |
CVSS provenance
nvdv3.07.5HIGHCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
nvdv2.05.0MEDIUMAV:N/AC:L/Au:N/C:N/I:P/A:N
osv7.5HIGH
vendor_debian7.5LOW
vendor_redhat7.5HIGH
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Red Hat
krb5: integer overflow in dbentry->n_key_data in kadmin/dbutil/dump.c
vendor_redhat·2018-01-15·CVSS 7.5
CVE-2018-5709 [HIGH] CWE-190 krb5: integer overflow in dbentry->n_key_data in kadmin/dbutil/dump.c
krb5: integer overflow in dbentry->n_key_data in kadmin/dbutil/dump.c
An issue was discovered in MIT Kerberos 5 (aka krb5) through 1.16. There is a variable "dbentry->n_key_data" in kadmin/dbutil/dump.c that can store 16-bit data but unknowingly the developer has assigned a "u4" variable to it, which is for 32-bit data. An attacker can use this vulnerability to affect other artifacts of the database as we know that a Kerberos database dump file contains trusted data.
Statement: This is essentially an integer truncation issue, and not an integer overflow. We have determined that this should not affect any other data allocated close to the 16-bit integer in question "dbentry-> n_key_data". Red Hat Product Security does not consider this issue as a security flaw.
Package: krb5 (Red Hat Ent
Debian
CVE-2018-5709: krb5 - An issue was discovered in MIT Kerberos 5 (aka krb5) through 1.16. There is a va...
vendor_debian·2018·CVSS 7.5
CVE-2018-5709 [HIGH] CVE-2018-5709: krb5 - An issue was discovered in MIT Kerberos 5 (aka krb5) through 1.16. There is a va...
An issue was discovered in MIT Kerberos 5 (aka krb5) through 1.16. There is a variable "dbentry->n_key_data" in kadmin/dbutil/dump.c that can store 16-bit data but unknowingly the developer has assigned a "u4" variable to it, which is for 32-bit data. An attacker can use this vulnerability to affect other artifacts of the database as we know that a Kerberos database dump file contains trusted data.
Scope: local
bookworm: open
bullseye: open
forky: open
sid: open
trixie: open
GHSA
GHSA-9g2q-jwhw-j832: An issue was discovered in MIT Kerberos 5 (aka krb5) through 1
ghsa_unreviewed·2022-05-13
CVE-2018-5709 [HIGH] CWE-190 GHSA-9g2q-jwhw-j832: An issue was discovered in MIT Kerberos 5 (aka krb5) through 1
An issue was discovered in MIT Kerberos 5 (aka krb5) through 1.16. There is a variable "dbentry->n_key_data" in kadmin/dbutil/dump.c that can store 16-bit data but unknowingly the developer has assigned a "u4" variable to it, which is for 32-bit data. An attacker can use this vulnerability to affect other artifacts of the database as we know that a Kerberos database dump file contains trusted data.
OSV
CVE-2018-5709: An issue was discovered in MIT Kerberos 5 (aka krb5) through 1
osv·2018-01-16·CVSS 7.5
CVE-2018-5709 [HIGH] CVE-2018-5709: An issue was discovered in MIT Kerberos 5 (aka krb5) through 1
An issue was discovered in MIT Kerberos 5 (aka krb5) through 1.16. There is a variable "dbentry->n_key_data" in kadmin/dbutil/dump.c that can store 16-bit data but unknowingly the developer has assigned a "u4" variable to it, which is for 32-bit data. An attacker can use this vulnerability to affect other artifacts of the database as we know that a Kerberos database dump file contains trusted data.
No detection rules found.
No public exploits indexed.
Bugzilla
CVE-2018-5709 krb5: integer overflow in dbentry->n_key_data in kadmin/dbutil/dump.c
bugzilla·2018-01-17·CVSS 7.5
CVE-2018-5709 [HIGH] CVE-2018-5709 krb5: integer overflow in dbentry->n_key_data in kadmin/dbutil/dump.c
CVE-2018-5709 krb5: integer overflow in dbentry->n_key_data in kadmin/dbutil/dump.c
An issue was discovered in MIT Kerberos 5 (aka krb5) through 1.16. There is a variable "dbentry->n_key_data" in kadmin/dbutil/dump.c that can store 16-bit data but unknowingly the developer has assigned a "u4" variable to it, which is for 32-bit data. An attacker can use this vulnerability to affect other artifacts of the database as we know that a Kerberos database dump file contains trusted data.
References:
https://github.com/poojamnit/Kerberos-V5-1.16-Vulnerabilities
Discussion:
Created krb5 tracking bugs for this issue:
Affects: fedora-all [bug 1535555]
---
Statement:
This is essentially an integer truncation issue, and not an integer overflow. We have determined that this should not affect any
Bugzilla
CVE-2018-5709 krb5: integer overflow in dbentry->n_key_data in kadmin/dbutil/dump.c [fedora-all]
bugzilla·2018-01-17·CVSS 7.5
CVE-2018-5709 [HIGH] CVE-2018-5709 krb5: integer overflow in dbentry->n_key_data in kadmin/dbutil/dump.c [fedora-all]
CVE-2018-5709 krb5: integer overflow in dbentry->n_key_data in kadmin/dbutil/dump.c [fedora-all]
This is an automatically created tracking bug! It was created to ensure
that one or more security vulnerabilities are fixed in affected versions
of fedora-all.
For comments that are specific to the vulnerability please use bugs filed
against the "Security Response" product referenced in the "Blocks" field.
For more information see:
http://fedoraproject.org/wiki/Security/TrackingBugs
When submitting as an update, use the fedpkg template provided in the next
comment(s). This will include the bug IDs of this tracking bug as well as
the relevant top-level CVE bugs.
Please also mention the CVE IDs being fixed in the RPM changelog and the
fedpkg commit message.
NOTE: this issue affects multiple
https://github.com/poojamnit/Kerberos-V5-1.16-Vulnerabilities/tree/master/Integer%20Overflowhttps://lists.apache.org/thread.html/rf9fa47ab66495c78bb4120b0754dd9531ca2ff0430f6685ac9b07772%40%3Cdev.mina.apache.org%3Ehttps://github.com/poojamnit/Kerberos-V5-1.16-Vulnerabilities/tree/master/Integer%20Overflowhttps://lists.apache.org/thread.html/rf9fa47ab66495c78bb4120b0754dd9531ca2ff0430f6685ac9b07772%40%3Cdev.mina.apache.org%3E
2018-01-16
Published