PT-2024-13322 · Llvm · Llvm

Gjduck · Published 2024-03-26 · Updated 2024-11-06 · CVE-2023-46049

Positive Technologies (AI Summary)

CVSS v3.1

5.3

Medium

Base vector

AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N

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.

NULL Pointer Dereference

Weakness Enumeration

CWE-476

Related Identifiers

CVE-2023-46049

OESA-2024-1481

Affected Products

Llvm

References · 12

• https://nvd.nist.gov/vuln/detail/CVE-2023-46049 · Security Note
• https://osv.dev/vulnerability/OESA-2024-1481 · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2023-46049 · Vendor Advisory
• https://github.com/llvm/llvm-project/issues/67388 · Note
• https://t.me/cvenotify/74786 · Telegram Post
• http://packetstormsecurity.com/files/176820/llvm-LLVM-15-Null-Pointer.html · Note
• https://twitter.com/CVEnew/status/1772858544078950521 · Twitter Post
• https://t.me/cvenotify/85692 · Telegram Post
• https://openeuler.org/en/security/safety-bulletin/detail.html?id=openEuler-SA-2024-1481 · Note
• http://seclists.org/fulldisclosure/2024/Jan/66 · Note
• https://t.me/cvenotify/100870 · Telegram Post
• https://llvm.org/docs/Security.html · Note