CWE-772
Missing Release of Resource after Effective Lifetime
The product does not release a resource after its effective lifetime has ended, i.e., after the resource is no longer needed.
CVE-2026-45536 (GCVE-0-2026-45536)
Vulnerability from cvelistv5 – Published: 2026-06-12 14:12 – Updated: 2026-06-12 15:05
VLAI
Title
Netty: Unix-socket fd receive leaks descriptors when peer sends two at once
Summary
Netty is a network application framework for development of protocol servers and clients. Prior to versions 4.1.135.Final and 4.2.15.Final, netty_unix_socket_recvFd sets msg_control to `char control[CMSG_SPACE(sizeof(int))]` (line 940) — 24 bytes on 64-bit Linux. A peer-sent SCM_RIGHTS cmsg carrying two ints has cmsg_len = CMSG_LEN(8) = 24, which fits exactly with no MSG_CTRUNC, so the kernel installs both fds in the receiving process. The subsequent check `cmsg->cmsg_len == CMSG_LEN(sizeof(int))` (line 972, expected 20) fails, the branch that would read the fd is skipped, and neither installed fd is closed. The for(;;) loop calls recvmsg again (non-blocking → EAGAIN → Java maps to 0 → read loop exits normally), leaving two leaked fds per message. There is no MSG_CTRUNC handling. Reachable via Epoll/KQueue DomainSocketChannel when the application opts into DomainSocketReadMode.FILE_DESCRIPTORS (non-default). Versions 4.1.135.Final and 4.2.15.Final patch the issue.
Severity
4 (Medium)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
Assigner
References
3 references
| URL | Tags |
|---|---|
| https://github.com/netty/netty/security/advisorie… | x_refsource_CONFIRM |
| https://github.com/netty/netty/releases/tag/netty… | x_refsource_MISC |
| https://github.com/netty/netty/releases/tag/netty… | x_refsource_MISC |
Impacted products
{
"containers": {
"adp": [
{
"metrics": [
{
"other": {
"content": {
"id": "CVE-2026-45536",
"options": [
{
"Exploitation": "none"
},
{
"Automatable": "no"
},
{
"Technical Impact": "partial"
}
],
"role": "CISA Coordinator",
"timestamp": "2026-06-12T15:05:26.043862Z",
"version": "2.0.3"
},
"type": "ssvc"
}
}
],
"providerMetadata": {
"dateUpdated": "2026-06-12T15:05:36.411Z",
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP"
},
"title": "CISA ADP Vulnrichment"
}
],
"cna": {
"affected": [
{
"product": "netty",
"vendor": "netty",
"versions": [
{
"status": "affected",
"version": "\u003e= 4.2.0.Final, \u003c 4.2.15.Final"
},
{
"status": "affected",
"version": "\u003c 4.1.135.Final"
}
]
}
],
"descriptions": [
{
"lang": "en",
"value": "Netty is a network application framework for development of protocol servers and clients. Prior to versions 4.1.135.Final and 4.2.15.Final, netty_unix_socket_recvFd sets msg_control to `char control[CMSG_SPACE(sizeof(int))]` (line 940) \u2014 24 bytes on 64-bit Linux. A peer-sent SCM_RIGHTS cmsg carrying two ints has cmsg_len = CMSG_LEN(8) = 24, which fits exactly with no MSG_CTRUNC, so the kernel installs both fds in the receiving process. The subsequent check `cmsg-\u003ecmsg_len == CMSG_LEN(sizeof(int))` (line 972, expected 20) fails, the branch that would read the fd is skipped, and neither installed fd is closed. The for(;;) loop calls recvmsg again (non-blocking \u2192 EAGAIN \u2192 Java maps to 0 \u2192 read loop exits normally), leaving two leaked fds per message. There is no MSG_CTRUNC handling. Reachable via Epoll/KQueue DomainSocketChannel when the application opts into DomainSocketReadMode.FILE_DESCRIPTORS (non-default). Versions 4.1.135.Final and 4.2.15.Final patch the issue."
}
],
"metrics": [
{
"cvssV3_1": {
"attackComplexity": "LOW",
"attackVector": "LOCAL",
"availabilityImpact": "LOW",
"baseScore": 4,
"baseSeverity": "MEDIUM",
"confidentialityImpact": "NONE",
"integrityImpact": "NONE",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L",
"version": "3.1"
}
}
],
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-200",
"description": "CWE-200: Exposure of Sensitive Information to an Unauthorized Actor",
"lang": "en",
"type": "CWE"
}
]
},
{
"descriptions": [
{
"cweId": "CWE-772",
"description": "CWE-772: Missing Release of Resource after Effective Lifetime",
"lang": "en",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2026-06-12T14:12:48.126Z",
"orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
"shortName": "GitHub_M"
},
"references": [
{
"name": "https://github.com/netty/netty/security/advisories/GHSA-w573-9ffj-6ff9",
"tags": [
"x_refsource_CONFIRM"
],
"url": "https://github.com/netty/netty/security/advisories/GHSA-w573-9ffj-6ff9"
},
{
"name": "https://github.com/netty/netty/releases/tag/netty-4.1.135.Final",
"tags": [
"x_refsource_MISC"
],
"url": "https://github.com/netty/netty/releases/tag/netty-4.1.135.Final"
},
{
"name": "https://github.com/netty/netty/releases/tag/netty-4.2.15.Final",
"tags": [
"x_refsource_MISC"
],
"url": "https://github.com/netty/netty/releases/tag/netty-4.2.15.Final"
}
],
"source": {
"advisory": "GHSA-w573-9ffj-6ff9",
"discovery": "UNKNOWN"
},
"title": "Netty: Unix-socket fd receive leaks descriptors when peer sends two at once"
}
},
"cveMetadata": {
"assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
"assignerShortName": "GitHub_M",
"cveId": "CVE-2026-45536",
"datePublished": "2026-06-12T14:12:48.126Z",
"dateReserved": "2026-05-12T17:48:47.878Z",
"dateUpdated": "2026-06-12T15:05:36.411Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2"
}
CVE-2026-9156 (GCVE-0-2026-9156)
Vulnerability from cvelistv5 – Published: 2026-05-27 01:19 – Updated: 2026-05-27 13:50
VLAI
Title
Tanium addressed a denial of service vulnerability in Tanium Server.
Summary
Tanium addressed a denial of service vulnerability in Tanium Server.
Severity
6.5 (Medium)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- CWE-772 - Missing Release of Resource after Effective Lifetime
Assigner
References
1 reference
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Tanium | Tanium Server |
Affected:
7.6.4.0 , < 7.6.4.2190
(custom)
Affected: 7.7.3.0 , < 7.7.3.8274 (custom) Affected: 7.8.2.0 , < 7.8.2.1176 (custom) |
Date Public
2026-05-27 01:19
{
"containers": {
"adp": [
{
"metrics": [
{
"other": {
"content": {
"id": "CVE-2026-9156",
"options": [
{
"Exploitation": "none"
},
{
"Automatable": "no"
},
{
"Technical Impact": "partial"
}
],
"role": "CISA Coordinator",
"timestamp": "2026-05-27T13:50:31.230808Z",
"version": "2.0.3"
},
"type": "ssvc"
}
}
],
"providerMetadata": {
"dateUpdated": "2026-05-27T13:50:44.570Z",
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP"
},
"title": "CISA ADP Vulnrichment"
}
],
"cna": {
"affected": [
{
"product": "Tanium Server",
"vendor": "Tanium",
"versions": [
{
"lessThan": "7.6.4.2190",
"status": "affected",
"version": "7.6.4.0",
"versionType": "custom"
},
{
"lessThan": "7.7.3.8274",
"status": "affected",
"version": "7.7.3.0",
"versionType": "custom"
},
{
"lessThan": "7.8.2.1176",
"status": "affected",
"version": "7.8.2.0",
"versionType": "custom"
}
]
}
],
"dateAssigned": "2026-05-21T01:21:37.531Z",
"datePublic": "2026-05-27T01:19:03.729Z",
"descriptions": [
{
"lang": "en",
"value": "Tanium addressed a denial of service vulnerability in Tanium Server."
}
],
"metrics": [
{
"cvssV3_1": {
"baseScore": 6.5,
"baseSeverity": "MEDIUM",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N",
"version": "3.1"
}
}
],
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-772",
"description": "Missing Release of Resource after Effective Lifetime",
"lang": "en",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2026-05-27T01:19:26.286Z",
"orgId": "3938794e-25f5-4123-a1ba-5cbd7f104512",
"shortName": "Tanium"
},
"references": [
{
"name": "TAN-2026-013",
"url": "https://security.tanium.com/TAN-2026-013"
}
],
"title": "Tanium addressed a denial of service vulnerability in Tanium Server."
}
},
"cveMetadata": {
"assignerOrgId": "3938794e-25f5-4123-a1ba-5cbd7f104512",
"assignerShortName": "Tanium",
"cveId": "CVE-2026-9156",
"datePublished": "2026-05-27T01:19:26.286Z",
"dateReserved": "2026-05-21T01:21:38.154Z",
"dateUpdated": "2026-05-27T13:50:44.570Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2"
}
Mitigation ID: MIT-3
Phase: Requirements
Strategy: Language Selection
Description:
- Use a language that does not allow this weakness to occur or provides constructs that make this weakness easier to avoid.
- For example, languages such as Java, Ruby, and Lisp perform automatic garbage collection that releases memory for objects that have been deallocated.
Mitigation
Phase: Implementation
Description:
- It is good practice to be responsible for freeing all resources you allocate and to be consistent with how and where you free resources in a function. If you allocate resources that you intend to free upon completion of the function, you must be sure to free the resources at all exit points for that function including error conditions.
Mitigation ID: MIT-47
Phases: Operation, Architecture and Design
Strategy: Resource Limitation
Description:
- Use resource-limiting settings provided by the operating system or environment. For example, when managing system resources in POSIX, setrlimit() can be used to set limits for certain types of resources, and getrlimit() can determine how many resources are available. However, these functions are not available on all operating systems.
- When the current levels get close to the maximum that is defined for the application (see CWE-770), then limit the allocation of further resources to privileged users; alternately, begin releasing resources for less-privileged users. While this mitigation may protect the system from attack, it will not necessarily stop attackers from adversely impacting other users.
- Ensure that the application performs the appropriate error checks and error handling in case resources become unavailable (CWE-703).
CAPEC-469: HTTP DoS
An attacker performs flooding at the HTTP level to bring down only a particular web application rather than anything listening on a TCP/IP connection. This denial of service attack requires substantially fewer packets to be sent which makes DoS harder to detect. This is an equivalent of SYN flood in HTTP. The idea is to keep the HTTP session alive indefinitely and then repeat that hundreds of times. This attack targets resource depletion weaknesses in web server software. The web server will wait to attacker's responses on the initiated HTTP sessions while the connection threads are being exhausted.