7.8

CVE-2020-27815: debian debian_linux

Modified
AliasesUBUNTU-CVE-2020-27815DEBIAN-CVE-2020-27815CGA-27f2-wpf9-frr9
Published 26-05-2021Last modified 04-08-2024

Vulnerability summary

CVE-2020-27815 is a high (CVSS 7.8) vulnerability in debian debian_linux. EPSS estimates a 0.79% chance of exploitation in the next 30 days, higher than 56.2% of scored vulnerabilities. 2 public exploits are recorded.

Priority
Prioritisepublic exploit

Public exploit (reference, Date unknown)

Source freshness unavailable

How is this decided?
CVSS score
7.8/10
010
High · v3.1 (NVD)
EPSS score
0.79%
0%100%
Low · 0.00 pp in 30 days
KEVNot listedNot listed by any tracked catalog.
RansomwareNot flaggedNo ransomware use recorded.
Public exploits2reference

Advisory lineage

Upstream 0 · Downstream 24 · Related 22
DLA-2557-1DLA-2586-1DSA-4843-1OPENSUSE-SU-2021:0532-1OPENSUSE-SU-2021:0758-1OPENSUSE-SU-2021:1975-1

Timeline

  1. 26-05-2021
    PublishedVulnerability first disclosed.
  2. 04-08-2024
    Last modifiedVulnerability information updated.

Description

A flaw was found in the JFS filesystem code in the Linux Kernel which allows a local attacker with the ability to set extended attributes to panic the system, causing memory corruption or escalating privileges. The highest threat from this vulnerability is to confidentiality, integrity, as well as system availability.

CVSS metrics

5 scores · 4 sources · 2 versions

EPSS trend

Probability

0.79%

Chance of exploitation in the next 30 days

Percentile

56%

Versus all other CVEs

30-day change

No change 0.00 pp

From 0.79% 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

2 found
  • referenceUnverified

    Exploit Reference (openwall.com)

    Maturity: unknown

  • referenceUnverified

    Exploit Reference (openwall.com)

    Maturity: unknown

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.

Chainguard83 products
  • hyperv-daemons-6.18All versions (No fix recorded)
  • hyperv-daemons-genericAll versions (No fix recorded)
  • linux-aws-6.12All versions (No fix recorded) | < 6.12.65-r0
  • linux-aws-6.12-boot-installedAll versions (No fix recorded)
  • linux-aws-6.12-fips-boot-installedAll versions (No fix recorded)
Ubuntu49 products
  • linuxAll versions (No fix recorded) | < 4.4.0-203.235 | < 4.15.0-136.140 | < 5.4.0-66.74
  • linux-aws< 4.4.0-1086.90 | < 4.4.0-1122.136 | < 4.15.0-1094.101 | < 5.4.0-1038.40
  • linux-aws-5.0All versions (No fix recorded)
  • linux-aws-5.3All versions (No fix recorded)
  • linux-aws-5.4< 5.4.0-1038.40~18.04.1
Netapp10 products
Debian2 products
Linux1 product
  • linux_kernel> 4.4.249 (No fix recorded) | ≥ 4.5, < 4.9.249 | ≥ 4.10, < 4.14.213 | ≥ 4.15, < 4.19.164 | ≥ 4.20, < 5.4.86 | ≥ 5.5, < 5.10.4

5 vendors · 145 products

References

20 links
Show all 20 references