CVE-2022-2787Network attack vector

Service denial via permissive session-name validation

Published Aug 27, 2022 · Updated Sep 16, 2024

Denial of service in Debian schroot before 1.6.13 allows remote authenticated users to interrupt schroot via crafted names. The session-name validator accepts chroot or session identifiers that can break schroot's internal state and leave sessions impossible to end. An account permitted to start a schroot session is required, and exploitation prevents other authorized users from using the service.

CVSS severity4.3
Medium
EPSS probability1.02%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Denial of service in Debian schroot before 1.6.13 allows remote authenticated users to interrupt schroot via crafted names. The session-name validator accepts chroot or session identifiers that can break schroot's internal state and leave sessions impossible to end. An account permitted to start a schroot session is required, and exploitation prevents other authorized users from using the service.

The record

CVE
CVE-2022-2787
Published
Aug 27, 2022
Updated
Sep 16, 2024
Vendor
Debian
Product
schroot
Classifications
T1499
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Aug 27, 2022CVE publishedPublication date reported by the CVE source.
  2. Sep 16, 2024Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=unspecified <1.6.13

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

Debian · schrootversion=unspecified <1.6.13

Published CVSS scores

4.3CanonicalCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

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No observations available

Sep 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

T1499Endpoint Denial of Service

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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