7.1

CVE-2024-39499: vmci: prevent speculation leaks by sanitizing event in event_deliver()

Modified
AliasesUBUNTU-CVE-2024-39499DEBIAN-CVE-2024-39499
Published 12-07-2024Last modified 11-05-2026

Vulnerability summary

CVE-2024-39499 is a high (CVSS 7.1) Exposure of Resource to Wrong Sphere vulnerability in linux. EPSS estimates a 0.30% chance of exploitation in the next 30 days, higher than 22.3% of scored vulnerabilities.

Priority
Routine

Not severe (CVSS 7.1, local access); no exploitation reported by the 5 checked sources

Source freshness unavailable

How is this decided?
CVSS score
7.1/10
010
High · v3.1 (NVD)
EPSS score
0.30%
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 37 · Related 30
DLA-4008-1DSA-5730-1DSA-5731-1RHSA-2024:11313RHSA-2024:7000RHSA-2024:7001

Timeline

  1. 12-07-2024
    PublishedVulnerability first disclosed.
  2. 11-05-2026
    Last modifiedVulnerability information updated.

Description

In the Linux kernel, the following vulnerability has been resolved: vmci: prevent speculation leaks by sanitizing event in event_deliver() Coverity spotted that event_msg is controlled by user-space, event_msg->event_data.event is passed to event_deliver() and used as an index without sanitization. This change ensures that the event index is sanitized to mitigate any possibility of speculative information leaks. This bug was discovered and resolved using Coverity Static Analysis Security Testing (SAST) by Synopsys, Inc. Only compile tested, no access to HW.

CVSS metrics

3 scores · 3 sources · 1 version

EPSS trend

Probability

0.30%

Chance of exploitation in the next 30 days

Percentile

22%

Versus all other CVEs

30-day change

No change 0.00 pp

From 0.30% 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, low-privilege account, no user interaction (CVSS vector). Other conditions: not stated in public data.

Ubuntu128 products
  • linuxAll versions (No fix recorded) | < 5.4.0-195.215 | < 5.15.0-121.131 | < 6.8.0-44.44
  • linux-allwinner-5.19All versions (No fix recorded)
  • linux-awsAll versions (No fix recorded) | < 5.4.0-1132.142 | < 5.15.0-1069.75 | < 6.8.0-1015.16
  • linux-aws-5.0All versions (No fix recorded)
  • linux-aws-5.11All versions (No fix recorded)
Linux2 products
  • linux≥ 1d990201f9bb499b7c76ab00abeb7e803c0bcb2a, < 58730dfbd4ae01c1b022b0d234a8bf8c02cdfb81 | ≥ 1d990201f9bb499b7c76ab00abeb7e803c0bcb2a, < 681967c4ff210e06380acf9b9a1b33ae06e77cbd | ≥ 1d990201f9bb499b7c76ab00abeb7e803c0bcb2a, < f70ff737346744633e7b655c1fb23e1578491ff3 | ≥ 1d990201f9bb499b7c76ab00abeb7e803c0bcb2a, < 95ac3e773a1f8da83c4710a720fbfe80055aafae | ≥ 1d990201f9bb499b7c76ab00abeb7e803c0bcb2a, < 95bac1c8bedb362374ea1937b1d3e833e01174ee | ≥ 1d990201f9bb499b7c76ab00abeb7e803c0bcb2a, < e293c6b38ac9029d76ff0d2a6b2d74131709a9a8 | ≥ 1d990201f9bb499b7c76ab00abeb7e803c0bcb2a, < 757804e1c599af5d2a7f864c8e8b2842406ff4bb | ≥ 1d990201f9bb499b7c76ab00abeb7e803c0bcb2a, < 8003f00d895310d409b2bf9ef907c56b42a4e0f4 | 3.9
  • linux_kernel≥ 3.9, < 4.19.317 | ≥ 4.20, < 5.4.279 | ≥ 5.5, < 5.10.221 | ≥ 5.11, < 5.15.162 | ≥ 5.16, < 6.1.95 | ≥ 6.2, < 6.6.35 | ≥ 6.7, < 6.9.6
Debian1 product
  • linux< 6.1.99-1 | < 6.9.7-1

3 vendors · 131 products

References

32 links
Show all 32 references