7.8

CVE-2021-38300: debian debian_linux

CVSS: 7.8v3.1HighModified
AliasesUBUNTU-CVE-2021-38300DEBIAN-CVE-2021-38300
Published 20-09-2021Last modified 04-08-2024
Open JSON

Vulnerability summary

CVE-2021-38300 is a high (CVSS 7.8) vulnerability in debian debian_linux. EPSS estimates a 0.58% chance of exploitation in the next 30 days, higher than 46.8% of scored vulnerabilities. 1 public exploit is recorded.

Overall risk
41/100
0100
Medium · default modelHow is this calculated?
CVSS score
7.8/10
010
High · v3.1 (NVD)
EPSS score
0.58%
0%100%
Low · -0.04 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits1reference

Advisory lineage

Upstream 0 · Downstream 2
DLA-2941-1DSA-5096-1

Timeline

  1. 20-09-2021
    PublishedVulnerability first disclosed.
  2. 04-08-2024
    Last modifiedVulnerability information updated.

Description

arch/mips/net/bpf_jit.c in the Linux kernel before 5.4.10 can generate undesirable machine code when transforming unprivileged cBPF programs, allowing execution of arbitrary code within the kernel context. This occurs because conditional branches can exceed the 128 KB limit of the MIPS architecture.

CVSS metrics

4 scores · 3 sources · 2 versions

EPSS trend

Probability

0.58%

Chance of exploitation in the next 30 days

Percentile

47%

Versus all other CVEs

30-day change

-0.04 pp

From 0.62% on 19-09-2026

19-09-202619-10-2026
EPSS score
0.58%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

1 found
  • referenceUnverified

    Exploit Reference (git.kernel.org)

    Maturity: unknown

Weaknesses

CWE · root cause

No weakness data has been published for this record.

Affected systems

Netapp9 products
Ubuntu8 products
  • linux-aws-fips< 4.15.0-2059.61 | All versions (No fix recorded) | < 5.4.0-1069.73+fips2
  • linux-azure-fips< 4.15.0-2041.45 | All versions (No fix recorded) | < 5.4.0-1073.76+fips1
  • linux-fipsAll versions (No fix recorded) | < 4.15.0-1075.84 | < 5.4.0-1038.44
  • linux-gcp-fips< 4.15.0-2024.26 | All versions (No fix recorded) | < 5.4.0-1067.71~20.04.1
  • linux-hwe-5.13< 5.13.0-23.23~20.04.2
Debian2 products
Linux1 product
  • linux_kernel≥ 3.16, < 4.14.251 | ≥ 4.15, < 4.19.211 | ≥ 4.20, < 5.4.153 | ≥ 5.5, < 5.10.71 | ≥ 5.11, < 5.14.10

4 vendors · 20 products

References

12 links
Show all 12 references