CVE-2021-36305 Race condition in PowerScale OneFS

What is CVE-2021-36305?

CVE-2021-36305 is a medium-severity vulnerability in Dell Emc Powerscale Onefs, published on 12 Nov 2021. Any signed-in user can exploit it over the network, with no action from the victim.

Official description

Dell PowerScale OneFS contains an Unsynchronized Access to Shared Data in a Multithreaded Context in SMB CA handling. An authenticated user of SMB on a cluster with CA could potentially exploit this vulnerability, leading to a denial of service over SMB.

Weakness: CWE-662

Which versions are affected by CVE-2021-36305?

It affects 1 product.

Products include Dell Emc Powerscale Onefs.

How do I fix CVE-2021-36305?

No fix has been published for CVE-2021-36305 yet. Limit exposure of the affected software until one is available.

Is CVE-2021-36305 being exploited?

There is no known exploitation of CVE-2021-36305 in the wild and no public exploit code.

Other vulnerabilities in Dell Emc Powerscale Onefs

• CVE-2021-21502 Auth bypass in PowerScale OneFS Critical 9.8
• CVE-2022-26851 Information disclosure in PowerScale OneFS Critical 9.1
• CVE-2021-21506 Privilege escalation in PowerScale OneFS High 8.8
• CVE-2023-22575 Information disclosure in PowerScale OneFS High 8.7
• CVE-2021-21594 Information disclosure in PowerScale OneFS High 8.2

All Dell Emc Powerscale Onefs vulnerabilities

Sources

• CVE record
• NVD
• OSV
• GitHub advisory
• How this page is made

Also known as GHSA-wr2x-hp98-m8g3.