CVE-2013-6438

medium

Published 2014-03-18 · Modified 2026-05-06

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CVSS v3

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CVSS v4 NEW

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not yet in upstream

VIR risk

5.0

Description

The dav_xml_get_cdata function in main/util.c in the mod_dav module in the Apache HTTP Server before 2.4.8 does not properly remove whitespace characters from CDATA sections, which allows remote attackers to cause a denial of service (daemon crash) via a crafted DAV WRITE request.

Predictions

Exploit likelihood

20%

Patch ETA

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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

OS	Version	Status	Fixed in
debian	trixie	fixed	`2.4.9-1`
debian	bookworm	fixed	`2.4.9-1`
debian	bullseye	fixed	`2.4.9-1`
debian	forky	fixed	`2.4.9-1`
debian	sid	fixed	`2.4.9-1`
ubuntu	10.04	affected
ubuntu	12.04	affected
ubuntu	12.10	affected
ubuntu	13.10	affected

Application impact

Vendor	Product	Versions	Fixed
apache	http_server	`{"startIncluding":"2.2.0","endExcluding":"2.2.27"}`	`2.2.27`
oracle	http_server	`10.1.3.5.0`
oracle	http_server	`11.1.1.7.0`
oracle	http_server	`12.1.2.0`
oracle	http_server	`12.1.3.0`
apache	http_server	`{"startIncluding":"2.4.1","endExcluding":"2.4.9"}`	`2.4.9`

References

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

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