CVE-2021-27629 is a vulnerability in SAP Netweaver As Abap
Published on June 9, 2021
SAP NetWeaver ABAP Server and ABAP Platform (Enqueue Server), versions - KRNL32NUC - 7.22,7.22EXT, KRNL64NUC - 7.22,7.22EXT,7.49, KRNL64UC - 8.04,7.22,7.22EXT,7.49,7.53,7.73, KERNEL - 7.22,8.04,7.49,7.53,7.73, allows an unauthenticated attacker without specific knowledge of the system to send a specially crafted packet over a network which will trigger an internal error in the system due to improper input validation in method EncPSetUnsupported() causing the system to crash and rendering it unavailable. In this attack, no data in the system can be viewed or modified.
Weakness Type
Out-of-bounds Read
The software reads data past the end, or before the beginning, of the intended buffer. Typically, this can allow attackers to read sensitive information from other memory locations or cause a crash. A crash can occur when the code reads a variable amount of data and assumes that a sentinel exists to stop the read operation, such as a NUL in a string. The expected sentinel might not be located in the out-of-bounds memory, causing excessive data to be read, leading to a segmentation fault or a buffer overflow. The software may modify an index or perform pointer arithmetic that references a memory location that is outside of the boundaries of the buffer. A subsequent read operation then produces undefined or unexpected results.
Products Associated with CVE-2021-27629
Want to know whenever a new CVE is published for SAP Netweaver As Abap? stack.watch will email you.
Affected Versions
SAP SE SAP NetWeaver ABAP Server and ABAP Platform (Enqueue Server):- Version < KRNL32NUC - 7.22 is affected.
- Version < 7.22EXT is affected.
- Version < KRNL64NUC - 7.22 is affected.
- Version < 7.49 is affected.
- Version < KRNL64UC - 8.04 is affected.
- Version < 7.22 is affected.
- Version < 7.53 is affected.
- Version < 7.73 is affected.
- Version < KERNEL - 7.22 is affected.
- Version < 8.04 is affected.
Exploit Probability
EPSS (Exploit Prediction Scoring System) scores estimate the probability that a vulnerability will be exploited in the wild within the next 30 days. The percentile shows you how this score compares to all other vulnerabilities.