CVE-2022-25761
The package open62541/open62541 before 1.2.5, from 1.3-rc1 and before 1.3.1 are vulnerable to Denial of Service (DoS) due to a missing limitation on the number of received chunks - per single session or in total for all concurrent sessions.
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (1.41%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
Description
The package open62541/open62541 before 1.2.5, from 1.3-rc1 and before 1.3.1 are vulnerable to Denial of Service (DoS) due to a missing limitation on the number of received chunks - per single session or in total for all concurrent sessions. An attacker can exploit this vulnerability by sending an unlimited number of huge chunks (e.g. 2GB each) without sending the Final closing chunk.
- CVSS 3.1
- 7.5 HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- EPSS
- 1.41% probability · 71th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-770
- Affected
- open62541/open62541 · fedoraproject/fedora
- Source
- report@snyk.io
References
- https://github.com/open62541/open62541/commit/b79db1ac78146fc06b0b8435773d3967de2d659cPatch, Third Party Advisory
- https://github.com/open62541/open62541/pull/5173Patch, Third Party Advisory
- https://github.com/open62541/open62541/releases/tag/v1.2.5Release Notes, Third Party Advisory
- https://github.com/open62541/open62541/releases/tag/v1.3.1Release Notes, Third Party Advisory
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/JNUV4FDVDBQHCPMOOEVKLMQK5SLKPK2L/
- https://security.snyk.io/vuln/SNYK-UNMANAGED-OPEN62541OPEN62541-2988719Patch, Third Party Advisory
- https://github.com/open62541/open62541/commit/b79db1ac78146fc06b0b8435773d3967de2d659cPatch, Third Party Advisory
- https://github.com/open62541/open62541/pull/5173Patch, Third Party Advisory
- https://github.com/open62541/open62541/releases/tag/v1.2.5Release Notes, Third Party Advisory
- https://github.com/open62541/open62541/releases/tag/v1.3.1Release Notes, Third Party Advisory
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/JNUV4FDVDBQHCPMOOEVKLMQK5SLKPK2L/
- https://security.snyk.io/vuln/SNYK-UNMANAGED-OPEN62541OPEN62541-2988719Patch, Third Party Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.