Bug 1913317 (CVE-2020-17519)

Summary: CVE-2020-17519 apache-flink: directory traversal attack allows reading remote files through the REST API
Product: [Other] Security Response Reporter: Guilherme de Almeida Suckevicz <gsuckevi>
Component: vulnerabilityAssignee: Red Hat Product Security <security-response-team>
Status: CLOSED NOTABUG QA Contact:
Severity: medium Docs Contact:
Priority: medium    
Version: unspecifiedCC: aileenc, bibryam, chazlett, drieden, ganandan, ggaughan, gmalinko, hbraun, janstey, jochrist, jwon, pantinor
Target Milestone: ---Keywords: Security
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Hardware: All   
OS: Linux   
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Last Closed: 2021-01-11 18:27:41 UTC Type: ---
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Bug Blocks: 1913318    

Description Guilherme de Almeida Suckevicz 2021-01-06 13:59:07 UTC 
A change introduced in Apache Flink 1.11.0 (and released in 1.11.1 and 1.11.2 as well) allows attackers to read any file on the local filesystem of the JobManager through the REST interface of the JobManager process. Access is restricted to files accessible by the JobManager process. All users should upgrade to Flink 1.11.3 or 1.12.0 if their Flink instance(s) are exposed. The issue was fixed in commit b561010b0ee741543c3953306037f00d7a9f0801 from apache/flink:master.

References:
https://lists.apache.org/thread.html/r6843202556a6d0bce9607ebc02e303f68fc88e9038235598bde3b50d@%3Cannounce.apache.org%3E
https://www.openwall.com/lists/oss-security/2021/01/05/2
Comment 2 Product Security DevOps Team 2021-01-11 18:27:41 UTC 
This bug is now closed. Further updates for individual products will be reflected on the CVE page(s):

https://access.redhat.com/security/cve/cve-2020-17519