CVE-2017-15132: canonical ubuntu_linux Uncontrolled Resource Consumption
Vulnerability summary
CVE-2017-15132 is a high (CVSS 7.5) Uncontrolled Resource Consumption vulnerability in canonical ubuntu_linux. EPSS estimates a 3.12% chance of exploitation in the next 30 days, higher than 87.6% of scored vulnerabilities.
Advisory lineage
Upstream 0 · Downstream 4 · Related 2Timeline
- 25-01-2018PublishedVulnerability first disclosed.
- 17-09-2024Last modifiedVulnerability information updated.
Description
A flaw was found in dovecot 2.0 up to 2.2.33 and 2.3.0. An abort of SASL authentication results in a memory leak in dovecot's auth client used by login processes. The leak has impact in high performance configuration where same login processes are reused and can cause the process to crash due to memory exhaustion.
CVSS metrics
5 scores · 4 sources · 2 versions- OSV · AlpineEcosystem advisory · calculated7.5HighCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- OSV · UbuntuEcosystem advisory · calculated7.5HighCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- OSV · DebianEcosystem advisory · calculated7.5HighCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
EPSS trend
Probability
3.12%
Chance of exploitation in the next 30 days
Percentile
88%
Versus all other CVEs
30-day change
0.00 pp
From 3.12% on 19-09-2026
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root cause- CWE-400Uncontrolled Resource ConsumptionThe product does not properly control the allocation and maintenance of a limited resource.
- CWE-772Missing Release of Resource after Effective LifetimeThe product does not release a resource after its effective lifetime has ended, i.e., after the resource is no longer needed.
Affected systems
Suse7 products
- dovecot22&distro=SUSE Linux Enterprise Server 12 SP2< 2.2.31-19.5.1
- dovecot22&distro=SUSE Linux Enterprise Server 12 SP3< 2.2.31-19.5.1
- dovecot22&distro=SUSE Linux Enterprise Server for Raspberry Pi 12 SP2< 2.2.31-19.5.1
- dovecot22&distro=SUSE Linux Enterprise Server for SAP Applications 12 SP2< 2.2.31-19.5.1
- dovecot22&distro=SUSE Linux Enterprise Server for SAP Applications 12 SP3< 2.2.31-19.5.1
Debian2 products
- dovecot< 1:2.2.34-1
- debian_linuxEOL7.0 | 8.0 | 9.0
Mageia2 products
- dovecot< 2.2.13-5.6.mga5
- dovecot< 2.2.29.1-1.2.mga6
Alpine1 product
- dovecot≥ 2.0.0, < 2.3.1-r0 | ≥ 2.0.0, < 2.2.34-r0
Canonical1 product
- ubuntu_linuxEOL12.04 | 14.04 | 16.04 | 17.10
Dovecot1 product
- dovecot≥ 2.0.0, ≤ 2.2.33 | 2.3.0
The dovecot project1 product
- dovecot2.0 up to 2.2.33 and 2.3.0
Ubuntu1 product
- dovecot< 1:2.2.9-1ubuntu2.3 | < 1:2.2.22-1ubuntu2.6
8 vendors · 16 products
References
22 links- github.com/dovecot/core/commit/1a29ed2f96da1be22fa5a4d96c7583aa81b8b060.patchX Refsource CONFIRMPatchThird Party AdvisoryREPORT
- lists.debian.org/debian-lts-announce/2018/03/msg00036.htmlMailing ListX Refsource MLISTThird Party Advisory
- bugzilla.redhat.com/show_bug.cgi?id=1532768X Refsource CONFIRMIssue TrackingPatchThird Party AdvisoryREPORT
- www.dovecot.org/list/dovecot-news/2018-February/000370.htmlMailing ListX Refsource MLISTVendor Advisory