EvolutionApplication · Gnome

CVE-2007-3257

MEDIUM · 6.8 CVSS v2.0 Published 2007-06-19

Mitigation only

No fix yet — a mitigation exists. There is no fixed release. A documented workaround reduces exposure in the meantime.

See remediation →

77/100

Remediation priority · High

Remotely reachable No privileges Zero-click

Official description

NVD · unedited

Camel (camel-imap-folder.c) in the mailer component for Evolution Data Server 1.11 allows remote IMAP servers to execute arbitrary code via a negative SEQUENCE value in GData, which is used as an array index.

Technical summary

dbcve analysis · high confidence

The vulnerability exists in camel-imap-folder.c within the Evolution Data Server 1.11 mailer component. A remote malicious IMAP server can send a negative SEQUENCE value that gets used directly as an array index into GData, causing an out-of-bounds memory access that can be leveraged for arbitrary code execution on the client system.

MitigationUpgrade Evolution Data Server to a patched version. If upgrading is not immediately feasible, restrict IMAP connections to only trusted servers using network-level controls to reduce exposure to malicious IMAP servers.

Verify against the referenced sources before acting — the references below are authoritative for this CVE, this summary is not.

Affected products & versions

NVD · CPE data

EvolutionApplication

Affected:= 1.11

CVSS breakdown

From the vector

Attack vector: Network
Complexity: M
Authentication: None
Confidentiality: Partial
Integrity: Partial
Availability: Partial

AV:N/AC:M/Au:N/C:P/I:P/A:P

Am I affected?

dbcve checks

Work through these to decide whether this CVE applies to you.

Confirm Evolution Data Server is installed

Run 'rpm -q evolution-data-server' or 'dpkg -l libevolution' depending on your distribution, or check for the 'evolution' package

Affected if The package is not installed, the system is not affected by this specific vulnerability
Verify the installed Evolution version

Run 'evolution --version' or check the evolution-data-server package version with your package manager (rpm -q evolution-data-server or dpkg -l evolution-data-server)

Affected if The installed version is exactly 1.11 - other versions (higher or lower) are not affected by this specific CVE
Confirm IMAP functionality is in use

Check if any Evolution profiles or accounts are configured to use IMAP protocol. Look in ~/.evolution/ or check Evolution account settings for IMAP server configurations

Affected if IMAP accounts are configured and the client connects to IMAP servers - the flaw requires IMAP server interaction to trigger the negative sequence value
Check for untrusted IMAP server connections

Review configured IMAP servers in Evolution account settings and determine if any connect to external or untrusted IMAP servers

Affected if The client connects to untrusted or external IMAP servers - the vulnerability is only triggerable by a malicious IMAP server sending the negative sequence value

The system is affected only if Evolution Data Server version 1.11 is installed AND IMAP accounts are configured to connect to IMAP servers, particularly untrusted ones that could send the malicious negative sequence value.

Generated from the published advisory. Verify against your own configuration.

Remediation

From vendor data

Mitigation available No clean upgrade yet — mitigate in the meantime

Mitigation

Upgrade Evolution Data Server to a patched version. If upgrading is not immediately feasible, restrict IMAP connections to only trusted servers using network-level controls to reduce exposure to malicious IMAP servers.

Fix this in Evolution Scoped from the published advisory

Consultation3.0 h
Implementation4.0 h
Testing6.0 h
Review / QA3.0 h

16.0 hours of engineering $2,760

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Scan for this in your stack

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References

Primary sources

Practitioner notes

Contributed

Peer-ranked notes from engineers who’ve handled CVE-2007-3257 in production — separate from our analysis above.

Notes0 Guidelines

Know something about CVE-2007-3257?

The advisory tells you what broke. It rarely tells you what actually worked. If you’ve dealt with this one, that detail is what the next engineer is searching for.

The version that genuinely resolved it — not the one the vendor claimed
A config change or rule that shut the vector down
A gotcha in the upgrade path that cost you an afternoon

No notes yet

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What this is

A place for practitioners to share what actually worked: a mitigation you’ve tested, a configuration change, a version- or environment-specific caveat, or a link to a verified patch. The most useful notes rise to the top as peers upvote them, so the signal stays high.

What belongs here

Verified mitigations, workarounds, and config changes
Version or environment caveats, and links to real fixes
No weaponised exploit code, or anything meant to cause harm
No spam, self-promotion, credentials, or personal data

At a glance

A fix existsA vendor remedy is published

Severity 6.8 Medium

Exploit likelihood EPSS, next 30 days 3.1%

Affects: Evolution

Remediation

A high-priority fix

Fix this in Evolution 16 hrs · Moderate

Typical engagement from $2,760

Get a fix See the full breakdown ↓

A high-priority vulnerability. Send your environment and a specialist will scope CVE-2007-3257 and return a fixed quote and timeline.

You’ll deal with our team directly and deploy the reviewed fix to staging first — never straight to production.

Official description Straight from the sourceThe vendor's or NVD's own wording, published unedited. Authoritative, but often terse — it says what broke, rarely what to do.

Technical summary Written by usOur analysis, written from the advisory, the CVSS vector and the affected-version data. It adds context the advisory leaves out, and never invents facts that are not in the source.

Affected products & versions What the vendor confirmedThe version ranges the vendor confirmed as vulnerable. If your version sits inside a range here, treat yourself as exposed until you have upgraded.

CVSS breakdown How the score is builtThe industry scoring standard. It rates how the flaw is reached, what it takes to exploit, and what an attacker gains — the score is derived from those, not the other way round.

Am I affected? How to checkSteps we derive from the advisory and the affected-version data, so you can decide whether this CVE reaches your setup. They are a guide, not a scan — your own configuration is the authority.

Check your environment

Remediation Closing itWhat it takes to close this. Where a vendor fix exists we point at it; where none exists we say so plainly, and can build one. Effort estimates are scoped from the advisory, not from your codebase.

Scan for this in your stack

References Go to the primary sourcePrimary sources — vendor advisories, patches and trackers. Where our summary and a reference disagree, the reference wins.

Practitioner notes

No notes yet

Official description

Technical summary

Affected products & versions

CVSS breakdown

Am I affected?

Remediation

References