VIR Vulnerability Intelligence Relay

CVE-2011-4623

low
Published 2012-09-25 · Modified 2026-04-29
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CVSS v3
—
CVSS v4 NEW
—
not yet in upstream
VIR risk
2.1

Description

Integer overflow in the rsCStrExtendBuf function in runtime/stringbuf.c in the imfile module in rsyslog 4.x before 4.6.6, 5.x before 5.7.4, and 6.x before 6.1.4 allows local users to cause a denial of service (daemon hang) via a large file, which triggers a heap-based buffer overflow.

Predictions

Exploit likelihood
20%
Patch ETA
—

Heuristic predictions, AS-IS, for prioritization only.

Mitigations

No mitigations published for this CVE yet.

The vendor-content worker queues fetches as references arrive (check back in a few minutes). Or — if you've already worked around this in production — publish your fix to the community-verified tier.

✚ Propose a mitigation on Community → Mitigations published via the community go through AI scoring + 2 human reviewers + 7-day silent objection window before landing here with source_tier=community-verified.

OS impact
debian Debian Fixed 5 releases
VersionStatusFixed in
trixie Fixed 5.7.4-1
sid Fixed 5.7.4-1
forky Fixed 5.7.4-1
bullseye Fixed 5.7.4-1
bookworm Fixed 5.7.4-1

Application impact
VendorProductVersionsFixed
rsyslogrsyslog4.1.0
rsyslogrsyslog4.1.1
rsyslogrsyslog4.1.2
rsyslogrsyslog4.1.3
rsyslogrsyslog4.1.4
rsyslogrsyslog4.1.5
rsyslogrsyslog4.1.6
rsyslogrsyslog4.1.7
rsyslogrsyslog4.2.0
rsyslogrsyslog4.3.0
rsyslogrsyslog4.3.1
rsyslogrsyslog4.3.2
rsyslogrsyslog4.4.0
rsyslogrsyslog4.4.1
rsyslogrsyslog4.4.2
rsyslogrsyslog4.5.0
rsyslogrsyslog4.5.1
rsyslogrsyslog4.5.2
rsyslogrsyslog4.5.3
rsyslogrsyslog4.5.4
rsyslogrsyslog4.5.5
rsyslogrsyslog4.5.6
rsyslogrsyslog4.5.7
rsyslogrsyslog4.5.8
rsyslogrsyslog4.6.0
rsyslogrsyslog4.6.1
rsyslogrsyslog4.6.2
rsyslogrsyslog4.6.3
rsyslogrsyslog4.6.4
rsyslogrsyslog4.6.5
rsyslogrsyslog5.1.0
rsyslogrsyslog5.1.1
rsyslogrsyslog5.1.2
rsyslogrsyslog5.1.3
rsyslogrsyslog5.1.4
rsyslogrsyslog5.1.5
rsyslogrsyslog5.1.6
rsyslogrsyslog5.2.0
rsyslogrsyslog5.2.1
rsyslogrsyslog5.2.2
rsyslogrsyslog5.3.1
rsyslogrsyslog5.3.2
rsyslogrsyslog5.3.3
rsyslogrsyslog5.3.4
rsyslogrsyslog5.3.5
rsyslogrsyslog5.3.6
rsyslogrsyslog5.3.7
rsyslogrsyslog5.4.0
rsyslogrsyslog5.4.1
rsyslogrsyslog5.4.2
rsyslogrsyslog5.5.0
rsyslogrsyslog5.5.1
rsyslogrsyslog5.5.2
rsyslogrsyslog5.5.3
rsyslogrsyslog5.5.4
rsyslogrsyslog5.5.5
rsyslogrsyslog5.5.6
rsyslogrsyslog5.5.7
rsyslogrsyslog5.6.0
rsyslogrsyslog5.6.1
rsyslogrsyslog5.6.2
rsyslogrsyslog5.6.3
rsyslogrsyslog5.6.4
rsyslogrsyslog5.6.5
rsyslogrsyslog5.7.0
rsyslogrsyslog5.7.1
rsyslogrsyslog5.7.2
rsyslogrsyslog5.7.3
rsyslogrsyslog6.1.0
rsyslogrsyslog6.1.1
rsyslogrsyslog6.1.2
rsyslogrsyslog6.1.3

References

CWEs

CWE-189

Community-verified mitigations for this CVE will appear above when contributors publish them.

Verify integrity in audit chain (admin only). AS-IS.