OESA-2021-1423 (CVE-2021-37137)
Vulnerability from osv_openeuler – Published: 2021-11-05 11:04 – Updated: 2026-08-06 11:04 – Source websiteNetty is an asynchronous event-driven network application framework for rapid development of maintainable high performance protocol servers & clients. %package help Summary: Documents for Buildarch: noarch Requires: man info Provides: -javadoc = - Obsoletes: -javadoc < - %description help Man pages and other related documents for .
Security Fix(es):
The Snappy frame decoder function doesn't restrict the chunk length which may lead to excessive memory usage. Beside this it also may buffer reserved skippable chunks until the whole chunk was received which may lead to excessive memory usage as well. This vulnerability can be triggered by supplying malicious input that decompresses to a very big size (via a network stream or a file) or by sending a huge skippable chunk.(CVE-2021-37137)
The Bzip2 decompression decoder function doesn't allow setting size restrictions on the decompressed output data (which affects the allocation size used during decompression). All users of Bzip2Decoder are affected. The malicious input can trigger an OOME and so a DoS attack(CVE-2021-37136)
| URL | Type | |
|---|---|---|
{
"affected": [
{
"ecosystem_specific": {
"aarch64": [
"netty-4.1.13-12.oe1.aarch64.rpm"
],
"noarch": [
"netty-help-4.1.13-12.oe1.noarch.rpm"
],
"src": [
"netty-4.1.13-12.oe1.src.rpm"
],
"x86_64": [
"netty-4.1.13-12.oe1.x86_64.rpm"
]
},
"package": {
"ecosystem": "openEuler:20.03-LTS-SP1",
"name": "netty",
"purl": "pkg:rpm/openEuler/netty\u0026distro=openEuler-20.03-LTS-SP1"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"fixed": "4.1.13-12.oe1"
}
],
"type": "ECOSYSTEM"
}
]
},
{
"ecosystem_specific": {
"aarch64": [
"netty-4.1.13-12.oe1.aarch64.rpm"
],
"noarch": [
"netty-help-4.1.13-12.oe1.noarch.rpm"
],
"src": [
"netty-4.1.13-12.oe1.src.rpm"
],
"x86_64": [
"netty-4.1.13-12.oe1.x86_64.rpm"
]
},
"package": {
"ecosystem": "openEuler:20.03-LTS-SP2",
"name": "netty",
"purl": "pkg:rpm/openEuler/netty\u0026distro=openEuler-20.03-LTS-SP2"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"fixed": "4.1.13-12.oe1"
}
],
"type": "ECOSYSTEM"
}
]
}
],
"database_specific": {
"severity": "High"
},
"details": "Netty is an asynchronous event-driven network application framework for rapid development of maintainable high performance protocol servers \u0026amp; clients. %package help Summary: Documents for Buildarch: noarch Requires: man info Provides: -javadoc = - Obsoletes: -javadoc \u0026lt; - %description help Man pages and other related documents for .\r\n\r\nSecurity Fix(es):\r\n\r\nThe Snappy frame decoder function doesn\u0026apos;t restrict the chunk length which may lead to excessive memory usage. Beside this it also may buffer reserved skippable chunks until the whole chunk was received which may lead to excessive memory usage as well. This vulnerability can be triggered by supplying malicious input that decompresses to a very big size (via a network stream or a file) or by sending a huge skippable chunk.(CVE-2021-37137)\r\n\r\nThe Bzip2 decompression decoder function doesn\u0026apos;t allow setting size restrictions on the decompressed output data (which affects the allocation size used during decompression). All users of Bzip2Decoder are affected. The malicious input can trigger an OOME and so a DoS attack(CVE-2021-37136)",
"id": "OESA-2021-1423",
"modified": "2026-08-06T11:04:41Z",
"published": "2021-11-05T11:04:41Z",
"references": [
{
"type": "ADVISORY",
"url": "https://www.openeuler.org/en/security/safety-bulletin/detail.html?id=openEuler-SA-2021-1423"
},
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2021-37137"
},
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2021-37136"
}
],
"schema_version": "1.7.2",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
"type": "CVSS_V3"
}
],
"summary": "netty security update",
"upstream": [
"CVE-2021-37137",
"CVE-2021-37136"
]
}
Sightings
| Author | Source | Type | Date | Other |
|---|
Nomenclature
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- Confirmed: The vulnerability has been validated from an analyst's perspective.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
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- Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
- Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
- Not confirmed: The user expressed doubt about the validity of the vulnerability.
- Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.
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