Buffer overflow in NetApp Management Services For Element Software
CVE-2021-32626
Redis is an open source, in-memory database that persists on disk. In affected versions specially crafted Lua scripts executing in Redis can cause the heap-based Lua stack to be overflowed, due to incomplete checks for this condition. This can result with heap corruption and potentially remote code execution. This problem exists in all versions of Redis with Lua scripting support, starting from 2.6. The problem is fixed in versions 6.2.6, 6.0.16 and 5.0.14. For users unable to update an additional workaround to mitigate the problem without patching the redis-server executable is to prevent users from executing Lua scripts. This can be done using ACL to restrict EVAL and EVALSHA commands.
Vulnerability class: Buffer Overflow
EPSS: 0.162 (96.8th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H.
Affected products
- Netapp Management_services_for_element_software
- Netapp Management_services_for_netapp_hci
- Oracle Communications_operations_monitor — versions 4.3, 4.4, 5.0
- Redis — versions >= 6.2.0, < 6.2.6, >= 6.0.0, < 6.0.16, >= 2.6.0, < 5.0.14
- Debian Debian_linux — versions 10.0, 11.0
- Fedoraproject Fedora — versions 33, 34, 35
Weakness classification (CWE)
Public proof-of-concept exploits
References
- security-advisories@github.com (x_refsource_CONFIRM, Third Party Advisory)
- security-advisories@github.com (Patch, Third Party Advisory, x_refsource_MISC)
- security-advisories@github.com (x_refsource_FEDORA, vendor-advisory)
- security-advisories@github.com (x_refsource_FEDORA, vendor-advisory)
- security-advisories@github.com (mailing-list, x_refsource_MLIST)
- security-advisories@github.com (x_refsource_FEDORA, vendor-advisory)
- security-advisories@github.com (vendor-advisory, Third Party Advisory, x_refsource_DEBIAN)
- security-advisories@github.com (Patch, Third Party Advisory, x_refsource_MISC)
- security-advisories@github.com (x_refsource_CONFIRM, Third Party Advisory)
- security-advisories@github.com (vendor-advisory, Third Party Advisory, x_refsource_GENTOO)
Frequently asked questions
- What is CVE-2021-32626?
- CVE-2021-32626 is a high-severity vulnerability in NetApp Management Services For Element Software, classified under Heap-based Buffer Overflow. CVSS score: 7.5/10. Published 2021-10-04.
- How severe is CVE-2021-32626?
- High severity. CVSS v3 base score is 7.5 out of 10.
- Is CVE-2021-32626 known to be exploited?
- 3 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.