Llvm · Llvm · CVE-2023-46049
**Name of the Vulnerable Software and Affected Versions**
LLVM version 15.0.0
**Description**
The issue is related to a NULL pointer dereference in the `parseOneMetadata()` function. This can be triggered via a crafted `pdflatex.fmt` file or possibly a crafted `.o` file to `llvm-lto`. However, the relationship between `pdflatex.fmt` and any LLVM language front end is not clearly explained, and some consider a crash of the `llvm-lto` application to be a usability problem rather than a security issue.
**Recommendations**
For LLVM version 15.0.0, as a temporary workaround, consider disabling the `parseOneMetadata()` function until a patch is available. Restrict access to crafted files that could trigger this issue to minimize the risk of exploitation. At the moment, there is no information about a newer version that contains a fix for this vulnerability.