NULL Pointer Dereference Vulnerability in LLVM 15.0.0
CVE-2023-46049

5.3MEDIUM

Key Information:

Vendor

LLVM

Status
LLVM
Vendor
CVE Published:
27 March 2024

What is CVE-2023-46049?

A NULL pointer dereference exists in LLVM 15.0.0 within the parseOneMetadata() function, triggered by processing a specially crafted pdflatex.fmt file (or potentially a .o file) with llvm-lto. Although some debate exists regarding the connection between pdflatex.fmt and LLVM front ends, the defect can lead to a crash of the llvm-lto application, raising usability concerns for users and developers alike. Proper validation of input files is essential to mitigate this issue and protect the stability of LLVM tools.

References

https://github.com/llvm/llvm-project/issues/67388
http://seclists.org/fulldisclosure/2024/Jan/66
https://llvm.org/docs/Security.html

CVSS V3.1

Score:
5.3
Severity:
MEDIUM
Confidentiality:
Low
Integrity:
None
Availability:
Low
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.