CVE-2021-33515: debian debian_linux Command Injection
CVSS: 5.8v2.0MediumModified
AliasesALPINE-CVE-2021-33515RHSA-2022:1950UBUNTU-CVE-2021-33515USN-4993-1DEBIAN-CVE-2021-33515
Published 28-06-2021Last modified 03-08-2024
Vulnerability summary
CVE-2021-33515 is a medium (CVSS 5.8) Command Injection vulnerability in debian debian_linux. EPSS estimates a 2.85% chance of exploitation in the next 30 days, higher than 86.5% of scored vulnerabilities.
CVSS score
5.8/10
010
Medium · v2.0 (NVD)EPSS score
2.85%
0%100%
Low · 0.00 pp in 30 daysKEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded
Advisory lineage
Upstream 0 · Downstream 9 · Related 7Timeline
- 28-06-2021PublishedVulnerability first disclosed.
- 03-08-2024Last modifiedVulnerability information updated.
Description
The submission service in Dovecot before 2.3.15 allows STARTTLS command injection in lib-smtp. Sensitive information can be redirected to an attacker-controlled address.
CVSS metrics
6 scores · 5 sources · 2 versionsMedium 4.8Preferred score · OSV · Alpine (Ecosystem advisory) · calculated from vector
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:NSources5 sources · 4.2–4.8
- OSV · Red hatEcosystem advisory · calculated4.2MediumCVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:L/A:NDiffers
- OSV · UbuntuEcosystem advisory · calculated4.8MediumCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:N
- OSV · DebianEcosystem advisory · calculated4.8MediumCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:N
- NVDNIST4.8MediumCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:N
Medium 5.8Preferred score · NVD (NIST)
AV:N/AC:M/Au:N/C:P/I:P/A:NSourcesSingle source
EPSS trend
Probability
2.85%
Chance of exploitation in the next 30 days
Percentile
87%
Versus all other CVEs
30-day change
0.00 pp
From 2.85% on 20-09-2026
20-09-202620-10-2026
EPSS score2.85%
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeAffected systems
Redhat10 products
- dovecot< 1:2.3.16-2.el8
- dovecot-debuginfo< 1:2.3.16-2.el8
- dovecot-debugsource< 1:2.3.16-2.el8
- dovecot-devel< 1:2.3.16-2.el8
- dovecot-mysql< 1:2.3.16-2.el8
Debian2 products
- dovecot< 1:2.3.13+dfsg1-2
- debian_linuxEOL10.0
Alpine1 product
- dovecot< 2.3.15-r0
Dovecot1 product
- dovecot< 2.3.14.1
Fedoraproject1 product
- fedoraEOL33 | 34
Ubuntu1 product
- dovecot< 1:2.3.7.2-1ubuntu3.4
6 vendors · 16 products
References
22 links
lists.debian.org/debian-lts-announce/2022/09/msg00032.htmlMailing ListX Refsource MLISTThird Party Advisory
