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Fencer Vulns
medium 5.5

CVE-2023-29932 json

llvm-project commit fdbc55a5 was discovered to contain a segmentation fault via the component mlir::IROperand<mlir::OpOperand.

published 2023-05-05 3 y ago modified 2026-06-17 4 mo ago also EUVD-2023-33462

cvss
5.5
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
0.2%
EPSS 0.2% chance of exploitation in 30 days, percentile 12%
public exploits
0
none known

Summary

llvm-project commit fdbc55a5 was discovered to contain a segmentation fault via the component mlir::IROperand<mlir::OpOperand.

Patch / fix

  • llvm-toolchain-13 Ubuntu 22.04 LTS 1:13.0.1-2ubuntu2.2
  • llvm-toolchain-14 Ubuntu 22.04 LTS 1:14.0.0-1ubuntu1.1
  • llvm-toolchain-15 Ubuntu 22.04 LTS 1:15.0.7-0ubuntu0.22.04.3

ubuntu advisories UBUNTU-CVE-2023-29932

Ubuntu security data © Canonical Ltd., from https://github.com/canonical/ubuntu-security-notices via OSV; changed: normalised to fixed package versions per release. CC BY-SA 4.0

  • llvm CBL-Mariner 2.0 12.0.1-8
  • rust CBL-Mariner 2.0 1.72.0-2

azure linux advisories AZL-26407AZL-26409

Azure Linux vulnerability data, Copyright (c) Microsoft Corporation, from https://github.com/microsoft/AzureLinuxVulnerabilityData via OSV, under the MIT licence; changed: normalised to fixed package versions per release. MIT

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2023-29932 updated cvss 3.3

llvm: canonicalize pass crashed with segmentation fault

  • Red Hat Enterprise Linux 8 llvm, llvm-libs, llvm-test, llvm-googletest Red Hat Enterprise Linux 9 lld, lldb, llvm, clang, libomp, lld-libs, +14 more Red Hat OpenShift Dev Spaces llvm
    not affected: vulnerable code not present

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

CISA SSVC

Exploitation
Proof of concept is public
Automatable
no
Technical impact
partial
Assessed
21 mo ago

Exploit prediction

0.22% chance of exploitation in the next 30 days, higher than 12% of all scored CVEs (FIRST EPSS, 2026-11-08).

Exploits and checks

  • github.com https://github.com/llvm/llvm-project/issues/58745 referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by version score vector
CISA ADP 3.1 5.5 CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
NVD 3.1 5.5 CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
CNA 3.1 5.5 CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

Classification

Weakness
  • CWE-120 Buffer Copy without Checking Size of Input
  • CWE-119 Improper Restriction of Operations within the Bounds of a Memory Buffer

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.