All the vulnerabilites related to ISC - ISC DHCP
cve-2018-5733
Vulnerability from cvelistv5
Published
2019-01-16 20:00
Modified
2024-09-17 04:13
Severity ?
EPSS score ?
Summary
A malicious client can overflow a reference counter in ISC dhcpd
References
| ▼ | URL | Tags |
|---|---|---|
| https://kb.isc.org/docs/aa-01567 | x_refsource_CONFIRM | |
| https://access.redhat.com/errata/RHSA-2018:0469 | vendor-advisory, x_refsource_REDHAT | |
| https://www.debian.org/security/2018/dsa-4133 | vendor-advisory, x_refsource_DEBIAN | |
| https://usn.ubuntu.com/3586-2/ | vendor-advisory, x_refsource_UBUNTU | |
| https://access.redhat.com/errata/RHSA-2018:0483 | vendor-advisory, x_refsource_REDHAT | |
| https://usn.ubuntu.com/3586-1/ | vendor-advisory, x_refsource_UBUNTU | |
| http://www.securityfocus.com/bid/103188 | vdb-entry, x_refsource_BID | |
| http://www.securitytracker.com/id/1040437 | vdb-entry, x_refsource_SECTRACK | |
| https://lists.debian.org/debian-lts-announce/2018/03/msg00015.html | mailing-list, x_refsource_MLIST |
Impacted products
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"value": "Upgrade to the patched release most closely related to your current version of DHCP.\n\n DHCP 4.1-ESV-R15-P1\n DHCP 4.3.6-P1\n DHCP 4.4.1"
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cve-2021-25217
Vulnerability from cvelistv5
Published
2021-05-26 22:10
Modified
2024-09-16 22:08
Severity ?
EPSS score ?
Summary
A buffer overrun in lease file parsing code can be used to exploit a common vulnerability shared by dhcpd and dhclient
References
Impacted products
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"value": "ISC would like to thank Jon Franklin from Dell and Pawel Wieczorkiewicz from Amazon Web Services for (independently) reporting this vulnerability."
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"value": "In ISC DHCP 4.1-ESV-R1 -\u003e 4.1-ESV-R16, ISC DHCP 4.4.0 -\u003e 4.4.2 (Other branches of ISC DHCP (i.e., releases in the 4.0.x series or lower and releases in the 4.3.x series) are beyond their End-of-Life (EOL) and no longer supported by ISC. From inspection it is clear that the defect is also present in releases from those series, but they have not been officially tested for the vulnerability), The outcome of encountering the defect while reading a lease that will trigger it varies, according to: the component being affected (i.e., dhclient or dhcpd) whether the package was built as a 32-bit or 64-bit binary whether the compiler flag -fstack-protection-strong was used when compiling In dhclient, ISC has not successfully reproduced the error on a 64-bit system. However, on a 32-bit system it is possible to cause dhclient to crash when reading an improper lease, which could cause network connectivity problems for an affected system due to the absence of a running DHCP client process. In dhcpd, when run in DHCPv4 or DHCPv6 mode: if the dhcpd server binary was built for a 32-bit architecture AND the -fstack-protection-strong flag was specified to the compiler, dhcpd may exit while parsing a lease file containing an objectionable lease, resulting in lack of service to clients. Additionally, the offending lease and the lease immediately following it in the lease database may be improperly deleted. if the dhcpd server binary was built for a 64-bit architecture OR if the -fstack-protection-strong compiler flag was NOT specified, the crash will not occur, but it is possible for the offending lease and the lease which immediately followed it to be improperly deleted."
}
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"value": "Upgrade to the patched release most closely related to your current version of ISC DHCP:\n\n ISC DHCP 4.1-ESV-R16-P1\n ISC DHCP 4.4.2-P1"
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"datePublished": "2021-05-26T22:10:11.312869Z",
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"dateUpdated": "2024-09-16T22:08:32.175Z",
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cve-2018-5732
Vulnerability from cvelistv5
Published
2019-10-09 14:17
Modified
2024-09-16 18:19
Severity ?
EPSS score ?
Summary
A specially constructed response from a malicious server can cause a buffer overflow in dhclient
References
| ▼ | URL | Tags |
|---|---|---|
| https://kb.isc.org/docs/aa-01565 | x_refsource_CONFIRM |
Impacted products
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"shortName": "CVE"
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"tags": [
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"url": "https://kb.isc.org/docs/aa-01565"
}
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"title": "CVE Program Container"
}
],
"cna": {
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"product": "ISC DHCP",
"vendor": "ISC",
"versions": [
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"version": "ISC DHCP 4.1.0 -\u003e 4.1-ESV-R15, 4.2.0 -\u003e 4.2.8, 4.3.0 -\u003e 4.3.6, 4.4.0"
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]
}
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"credits": [
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"value": "ISC would like to thank Felix Wilhelm, Google Security Team, for reporting this vulnerability."
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],
"datePublic": "2018-02-28T00:00:00",
"descriptions": [
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cve-2022-2928
Vulnerability from cvelistv5
Published
2022-10-07 04:45
Modified
2024-09-17 00:21
Severity ?
EPSS score ?
Summary
An option refcount overflow exists in dhcpd
References
Impacted products
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cve-2022-2929
Vulnerability from cvelistv5
Published
2022-10-07 04:45
Modified
2024-09-16 18:28
Severity ?
EPSS score ?
Summary
DHCP memory leak
References
Impacted products
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cve-2017-3144
Vulnerability from cvelistv5
Published
2019-01-16 20:00
Modified
2024-09-16 22:46
Severity ?
EPSS score ?
Summary
Failure to properly clean up closed OMAPI connections can exhaust available sockets
References
| ▼ | URL | Tags |
|---|---|---|
| https://access.redhat.com/errata/RHSA-2018:0158 | vendor-advisory, x_refsource_REDHAT | |
| https://www.debian.org/security/2018/dsa-4133 | vendor-advisory, x_refsource_DEBIAN | |
| http://www.securityfocus.com/bid/102726 | vdb-entry, x_refsource_BID | |
| http://www.securitytracker.com/id/1040194 | vdb-entry, x_refsource_SECTRACK | |
| https://usn.ubuntu.com/3586-1/ | vendor-advisory, x_refsource_UBUNTU | |
| https://kb.isc.org/docs/aa-01541 | x_refsource_CONFIRM |
Impacted products
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},
{
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},
{
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"tags": [
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"x_refsource_BID",
"x_transferred"
],
"url": "http://www.securityfocus.com/bid/102726"
},
{
"name": "1040194",
"tags": [
"vdb-entry",
"x_refsource_SECTRACK",
"x_transferred"
],
"url": "http://www.securitytracker.com/id/1040194"
},
{
"name": "USN-3586-1",
"tags": [
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"x_refsource_UBUNTU",
"x_transferred"
],
"url": "https://usn.ubuntu.com/3586-1/"
},
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"x_transferred"
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}
],
"title": "CVE Program Container"
}
],
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"vendor": "ISC",
"versions": [
{
"status": "affected",
"version": "ISC DHCP 4.1.0 to 4.1-ESV-R15, 4.2.0 to 4.2.8, 4.3.0 to 4.3.6. Older versions may also be affected but are well beyond their end-of-life (EOL). Releases prior to 4.1.0 have not been tested."
}
]
}
],
"datePublic": "2018-01-16T00:00:00",
"descriptions": [
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