Buffer overflow in IBM Spectrum Protect
CVE-2021-20491
IBM Spectrum Protect Server 7.1 and 8.1 is subject to a stack-based buffer overflow caused by improper bounds checking during the parsing of commands. By issuing such a command with an improper parameter, an authorized administrator could overflow a buffer and cause the server to crash. IBM X-Force ID: 197792.
Vulnerability class: Buffer Overflow
Published · last modified .
CVSS v3 metric
CVSS v3 base score 4.4 (Medium). Vector: CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H.
EPSS exploit prediction
EPSS: 0.003 (17.5th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 17th percentile — 17.5% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.003 · newest: 0.003 · change: 0.000
Affected products
- IBM Spectrum Protect — versions 8.1.11.000
- IBM Spectrum Protect Server — versions 8.1, 7.1
Weakness classification (CWE)
References
- www.ibm.com/support/pages/node/6442993 (Patch, Vendor Advisory)
- exchange.xforce.ibmcloud.com/vulnerabilities/197792 (VDB Entry, vdb-entry, Vendor Advisory)
Frequently asked questions
- What is CVE-2021-20491?
- CVE-2021-20491 is a medium-severity vulnerability in IBM Spectrum Protect, classified under Out-of-bounds Write. CVSS score: 4.4/10. Published 2021-04-16.
- How severe is CVE-2021-20491?
- Medium severity. CVSS v3 base score is 4.4 out of 10.