CVE-2020-23914
MEDIUM
5.5
CVSS Score
Published: April 21, 2021 at 05:41 PM UTC
Updated: June 17, 2026 at 03:05 AM UTC
1 product affected across 1 vendorCpp Peglib
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Severity
MEDIUM5.5
Exploit prediction
EPSS 0.9%
Description
An issue was discovered in cpp-peglib through v0.1.12. A NULL pointer dereference exists in the peg::AstOptimizer::optimize() located in peglib.h. It allows an attacker to cause Denial of Service.
Affected
Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.
v ≤ 0.1.12
Remediation
No guide yetNo remediation guidance has been written for this CVE yet. What the record does show:
Patch and advisory references
References (2)
x_refsource_MISCPatchThird Party Advisory
Source: [email protected]
https://github.com/yhirose/cpp-peglib/commit/0061f393de54cf0326621c079dc2988336d1ebb3x_refsource_MISCExploitThird Party Advisory
Source: [email protected]
https://github.com/yhirose/cpp-peglib/issues/121CVSS
- Attack Vector
- LOCAL
- Complexity
- LOW
- Privileges
- NONE
- User Interaction
- REQUIRED
- Scope
- UNCHANGED
- Confidentiality
- NONE
- Integrity
- NONE
- Availability
- HIGH
Vector?
Quick Info
StatusMODIFIED
CWE
CWE-476
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