CVE-2021-45423
A Buffer Overflow vulnerabilityexists in Pev 0.81 via the pe_exports function from exports.c..
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (1.13%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
Description
A Buffer Overflow vulnerabilityexists in Pev 0.81 via the pe_exports function from exports.c.. The array offsets_to_Names is dynamically allocated on the stack using exp->NumberOfFunctions as its size. However, the loop uses exp->NumberOfNames to iterate over it and set its components value. Therefore, the loop code assumes that exp->NumberOfFunctions is greater than ordinal at each iteration. This can lead to arbitrary code execution.
- CVSS 3.1
- 9.8 CRITICALCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- EPSS
- 1.13% probability · 64th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-120
- Affected
- pev project/pev
- Source
- cve@mitre.org
References
- https://github.com/merces/libpe/issues/35Exploit, Vendor Advisory
- https://github.com/merces/libpe/issues/35Exploit, Vendor Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.