Staging Environment: Content and features may be unstable or change without notice.
Advisory details: github_osv / GHSA-8mpp-f3f7-xc28
Advisory ID github_osv/GHSA-8mpp-f3f7-xc28
Aliases CVE-2022-2191
Summary Jetty SslConnection does not release pooled ByteBuffers in case of errors ### Impact `SslConnection` does not release `ByteBuffer`s in case of error code paths. For example, TLS handshakes that require client-auth with clients that send expired certificates will trigger a TLS handshake errors and the `ByteBuffer`s used to process the TLS handshake will be leaked. ### Workarounds Configure explicitly a `RetainableByteBufferPool` with `max[Heap|Direct]Memory` to limit the amount of memory that is leaked. Eventually the pool will be full of "active" entries (the leaked ones) and will provide `ByteBuffer`s that will be GCed normally. _With embedded-jetty_ ``` java int maxBucketSize = 1000; long maxHeapMemory = 128 * 1024L * 1024L; // 128 MB long maxDirectMemory = 128 * 1024L * 1024L; // 128 MB RetainableByteBufferPool rbbp = new ArrayRetainableByteBufferPool(0, -1, -1, maxBucketSize, maxHeapMemory, maxDirectMemory); server.addBean(rbbp); // make sure the ArrayRetainableByteBufferPool is added before the server is started server.start(); ``` _With jetty-home/jetty-base_ Create a `${jetty.base}/etc/retainable-byte-buffer-config.xml` ``` xml <?xml version="1.0"?> <!DOCTYPE Configure PUBLIC "-//Jetty//Configure//EN" "https://www.eclipse.org/jetty/configure_10_0.dtd"> <Configure id="Server" class="org.eclipse.jetty.server.Server"> <Call name="addBean"> <Arg> <New class="org.eclipse.jetty.io.ArrayRetainableByteBufferPool"> <Arg type="int"><Property name="jetty.byteBufferPool.minCapacity" default="0"/></Arg> <Arg type="int"><Property name="jetty.byteBufferPool.factor" default="-1"/></Arg> <Arg type="int"><Property name="jetty.byteBufferPool.maxCapacity" default="-1"/></Arg> <Arg type="int"><Property name="jetty.byteBufferPool.maxBucketSize" default="1000"/></Arg> <Arg type="long"><Property name="jetty.byteBufferPool.maxHeapMemory" default="128000000"/></Arg> <Arg type="long"><Property name="jetty.byteBufferPool.maxDirectMemory" default="128000000"/></Arg> </New> </Arg> </Call> </Configure> ``` And then reference it in `${jetty.base}/start.d/retainable-byte-buffer-config.ini` ``` etc/retainable-byte-buffer-config.xml ``` ### References https://github.com/eclipse/jetty.project/issues/8161 ### For more information * Email us at [security@webtide.com](mailto:security@webtide.com)
Status Published
Exploitability 0.5
Weighted Severity 6.8
Risk 3.4
Affected and Fixed Packages Package Details
Introduced and Fixed Package Commit Patches Package Commit Patches Details
Weaknesses (1)
No exploits are available.

No EPSS data available for this advisory.

Patch URL
There are no known patches.
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H Found at https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2022/07/GHSA-8mpp-f3f7-xc28/GHSA-8mpp-f3f7-xc28.json
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

low

none

There are no SSVC decisions available.