6.5

CVE-2021-3181: debian debian_linux

CVSS: 6.5v3.1MediumModified
AliasesMGASA-2021-0070SUSE-SU-2021:0195-1SUSE-SU-2021:0196-1
Published 19-01-2021Last modified 03-08-2024
Open JSON

Vulnerability summary

CVE-2021-3181 is a medium (CVSS 6.5) vulnerability in debian debian_linux. EPSS estimates a 2.83% chance of exploitation in the next 30 days, higher than 86.4% of scored vulnerabilities.

Overall risk
27/100
0100
Medium · default modelHow is this calculated?
CVSS score
6.5/10
010
Medium · v3.1 (NVD)
EPSS score
2.83%
0%100%
Low · +0.03 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Advisory lineage

Upstream 0 · Downstream 2 · Related 1
OPENSUSE-SU-2024:11069-1RHSA-2021:4181

Timeline

  1. 19-01-2021
    PublishedVulnerability first disclosed.
  2. 03-08-2024
    Last modifiedVulnerability information updated.

Description

rfc822.c in Mutt through 2.0.4 allows remote attackers to cause a denial of service (mailbox unavailability) by sending email messages with sequences of semicolon characters in RFC822 address fields (aka terminators of empty groups). A small email message from the attacker can cause large memory consumption, and the victim may then be unable to see email messages from other persons.

CVSS metrics

4 scores · 3 sources · 2 versions

EPSS trend

Probability

2.83%

Chance of exploitation in the next 30 days

Percentile

86%

Versus all other CVEs

30-day change

+0.03 pp

From 2.80% on 19-09-2026

19-09-202619-10-2026
EPSS score
2.83%

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

Suse3 products
  • mutt&distro=SUSE Linux Enterprise Module for Basesystem 15 SP2< 1.10.1-3.20.1
  • mutt&distro=SUSE Linux Enterprise Server 12 SP5< 1.10.1-55.24.1
  • mutt&distro=SUSE Linux Enterprise Server for SAP Applications 12 SP5< 1.10.1-55.24.1
Debian2 products
  • mutt< 2.0.5-1 | < 1.10.1-2.1+deb10u5 | < 1.7.2-1+deb9u5
  • debian_linuxEOL9.0 | 10.0
Opensuse2 products
  • mutt&distro=openSUSE Leap 15.1< 1.10.1-lp151.2.15.1
  • mutt&distro=openSUSE Leap 15.2< 1.10.1-lp152.3.15.1
Fedoraproject1 product
Mageia1 product
  • mutt< 1.11.4-1.5.mga7
Mutt1 product
Ubuntu1 product
  • mutt< 1.5.24-1ubuntu0.6 | < 1.9.4-3ubuntu0.5 | < 1.13.2-1ubuntu0.4

7 vendors · 11 products

References

26 links
Show all 26 references