5.5

CVE-2023-29934: llvm Out-of-bounds Read

Modified
AliasesUBUNTU-CVE-2023-29934DEBIAN-CVE-2023-29934
Published 05-05-2023Last modified 29-01-2025

Vulnerability summary

CVE-2023-29934 is a medium (CVSS 5.5) Out-of-bounds Read vulnerability in llvm. EPSS estimates a 0.22% chance of exploitation in the next 30 days, higher than 12.7% of scored vulnerabilities.

Priority
Routine

Not severe (CVSS 5.5, local access); no exploitation reported by the 5 checked sources

Source freshness unavailable

How is this decided?
CVSS score
5.5/10
010
Medium · v3.1 (CVE.org)
EPSS score
0.22%
0%100%
Low · 0.00 pp in 30 days
KEVNot listedNot listed by any tracked catalog.
RansomwareNot flaggedNo ransomware use recorded.
Public exploits0No public exploits recorded

Advisory lineage

Upstream 0 · Downstream 1 · Related 1
USN-6258-1

Timeline

  1. 05-05-2023
    PublishedVulnerability first disclosed.
  2. 29-01-2025
    Last modifiedVulnerability information updated.

Description

llvm-project commit 6c01b5c was discovered to contain a segmentation fault via the component mlir::Type::getDialect().

CVSS metrics

4 scores · 4 sources · 1 version

EPSS trend

Probability

0.22%

Chance of exploitation in the next 30 days

Percentile

13%

Versus all other CVEs

30-day change

No change 0.00 pp

From 0.22% on 04-10-2026

04-10-202603-11-2026

Known exploited

Compare KEV catalogs
CISA KEV

Not in the CISA KEV catalog.

ENISA CNW

Not in the ENISA CNW catalog.

CIRCL

Not in the CIRCL catalog.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

Affected systems

Version check

Known conditions: local access, no authentication, user interaction (CVSS vector). Other conditions: not stated in public data.

Debian3 products
  • llvm-toolchain-13All versions (No fix recorded)
  • llvm-toolchain-14All versions (No fix recorded)
  • llvm-toolchain-15All versions (No fix recorded)
Ubuntu3 products
  • llvm-toolchain-13< 1:13.0.1-2ubuntu2.2
  • llvm-toolchain-14< 1:14.0.0-1ubuntu1.1
  • llvm-toolchain-15< 1:15.0.7-0ubuntu0.22.04.3
Llvm1 product

3 vendors · 7 products

References

6 links