6.5

CVE-2021-3677: fedoraproject fedora

CVSS: 6.5v3.1MediumModified
AliasesALPINE-CVE-2021-3677MGASA-2021-0424SUSE-SU-2021:3119-1
Published 02-03-2022Last modified 03-08-2024
Open JSON

Vulnerability summary

CVE-2021-3677 is a medium (CVSS 6.5) vulnerability in fedoraproject fedora. EPSS estimates a 1.44% chance of exploitation in the next 30 days, higher than 72.8% of scored vulnerabilities.

Overall risk
26/100
0100
Medium · default modelHow is this calculated?
CVSS score
6.5/10
010
Medium · v3.1 (NVD)
EPSS score
1.44%
0%100%
Low · 0.00 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Advisory lineage

Upstream 0 · Downstream 9 · Related 5
OPENSUSE-SU-2024:11185-1OPENSUSE-SU-2024:11186-1OPENSUSE-SU-2024:11187-1RHSA-2021:5179RHSA-2021:5197RHSA-2021:5235

Timeline

  1. 02-03-2022
    PublishedVulnerability first disclosed.
  2. 03-08-2024
    Last modifiedVulnerability information updated.

Description

A flaw was found in postgresql. A purpose-crafted query can read arbitrary bytes of server memory. In the default configuration, any authenticated database user can complete this attack at will. The attack does not require the ability to create objects. If server settings include max_worker_processes=0, the known versions of this attack are infeasible. However, undiscovered variants of the attack may be independent of that setting.

CVSS metrics

6 scores · 5 sources · 2 versions

EPSS trend

Probability

1.44%

Chance of exploitation in the next 30 days

Percentile

73%

Versus all other CVEs

30-day change

0.00 pp

From 1.44% on 18-09-2026

18-09-202618-10-2026
EPSS score
1.44%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

Affected systems

Suse15 products
  • postgresql12&distro=SUSE Linux Enterprise Module for Basesystem 15 SP2< 12.8-8.23.2
  • postgresql12&distro=SUSE Linux Enterprise Module for Legacy 15 SP3< 12.8-8.23.2
  • postgresql12&distro=SUSE Linux Enterprise Module for Server Applications 15 SP2< 12.8-8.23.2
  • postgresql12&distro=SUSE Linux Enterprise Server 12 SP5< 12.8-3.18.2
  • postgresql12&distro=SUSE Linux Enterprise Server for SAP Applications 12 SP5< 12.8-3.18.2
Redhat6 products
Alpine4 products
  • postgresql≥ 11.0, < 12.8-r0 | ≥ 11.0, < 13.4-r0
  • postgresql13< 13.4-r0
  • postgresql14< 13.4-r0
  • postgresql15< 13.4-r0
Mageia2 products
  • postgresql11< 11.13-1.mga8
  • postgresql13< 13.4-1.mga8
Opensuse2 products
  • postgresql12&distro=openSUSE Leap 15.3< 12.8-8.23.2
  • postgresql13&distro=openSUSE Leap 15.3< 13.4-5.16.2
Debian1 product
  • postgresql-13< 13.4-0+deb11u1
Fedoraproject1 product
Postgresql1 product
  • postgresql≥ 11.0, < 11.13 | ≥ 12.0, < 12.8 | ≥ 13.0, < 13.4
Ubuntu1 product
  • postgresql-12< 12.8-0ubuntu0.20.04.1

9 vendors · 33 products

References

38 links
Show all 38 references