Buffer overflow in SAP Netweaver Abap
CVE-2021-33684
SAP NetWeaver AS ABAP and ABAP Platform, versions - KRNL32NUC 7.21, 7.21EXT, 7.22, 7.22EXT, KRNL32UC 7.21, 7.21EXT, 7.22, 7.22EXT, KRNL64NUC 7.21, 7.21EXT, 7.22, 7.22EXT, 7.49, KRNL64UC 8.04, 7.21, 7.21EXT, 7.22, 7.22EXT, 7.49, 7.53, KERNEL 8.04, 7.21, 7.21EXT, 7.22, 7.22EXT, 7.49, 7.53, 7.77, 7.81, 7.84, allows an attacker to send overlong content in the RFC request type thereby crashing the corresponding work process because of memory corruption vulnerability. The work process will attempt to restart itself after the crash and hence the impact on the availability is low.
Vulnerability class: Buffer Overflow
Published · last modified .
CVSS v3 metric
CVSS v3 base score 5.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L.
EPSS exploit prediction
EPSS: 0.010 (60.9th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 61st percentile — 60.9% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.010 · newest: 0.010 · change: 0.000
Affected products
- SAP Netweaver Abap — versions 7.21, 7.21ext, 7.22
- SAP Netweaver Application Server Abap — versions 7.21, 7.21ext, 7.22
- SAP Se Netweaver As Abap And Platform — versions < KRNL32NUC 7.21, < 7.21EXT, < 7.22
Weakness classification (CWE)
References
- wiki.scn.sap.com/wiki/pages/viewpage.action (Vendor Advisory)
- launchpad.support.sap.com/ (Permissions Required)
Frequently asked questions
- What is CVE-2021-33684?
- CVE-2021-33684 is a medium-severity vulnerability in SAP Netweaver Abap, classified under Out-of-bounds Write. CVSS score: 5.3/10. Published 2021-07-14.
- How severe is CVE-2021-33684?
- Medium severity. CVSS v3 base score is 5.3 out of 10.