Vulnerability Details : CVE-2023-46049
LLVM 15.0.0 has a NULL pointer dereference in the parseOneMetadata() function via a crafted pdflatex.fmt file (or perhaps a crafted .o file) to llvm-lto. NOTE: this is disputed because the relationship between pdflatex.fmt and any LLVM language front end is not explained, and because a crash of the llvm-lto application should be categorized as a usability problem.
Vulnerability category: Memory Corruption
Products affected by CVE-2023-46049
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Exploit prediction scoring system (EPSS) score for CVE-2023-46049
0.12%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 32 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2023-46049
| Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
|---|---|---|---|---|---|---|
|
5.3
|
MEDIUM | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N |
3.9
|
1.4
|
134c704f-9b21-4f2e-91b3-4a467353bcc0 | 2024-11-06 |
CWE ids for CVE-2023-46049
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The product dereferences a pointer that it expects to be valid but is NULL.Assigned by: 134c704f-9b21-4f2e-91b3-4a467353bcc0 (Secondary)
References for CVE-2023-46049
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https://llvm.org/docs/Security.html
LLVM Security Group — LLVM 19.0.0git documentation
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https://github.com/llvm/llvm-project/issues/67388
Possible SEGV (null pointer) in MetadataLoader::MetadataLoaderImpl::parseOneMetadata() · Issue #67388 · llvm/llvm-project · GitHub
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http://seclists.org/fulldisclosure/2024/Jan/66
Full Disclosure: null pointer deference in LLVM
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