CVE-2016-5300
high
CVSS v3
7.5
CVSS v4 NEW
—
VIR risk
7.5
Description
The XML parser in Expat does not use sufficient entropy for hash initialization, which allows context-dependent attackers to cause a denial of service (CPU consumption) via crafted identifiers in an XML document. NOTE: this vulnerability exists because of an incomplete fix for CVE-2012-0876.
Predictions
Exploit likelihood
83%
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 withsource_tier=community-verified.
OS impact
SUSE Affected 1 release
| Version | Status | Fixed in |
|---|---|---|
| — | Affected | — |
Ubuntu Affected 4 releases
| Version | Status | Fixed in |
|---|---|---|
| 16.04 | Affected | — |
| 15.10 | Affected | — |
| 14.04 | Affected | — |
| 12.04 | Affected | — |
Debian Mixed 6 releases
| Version | Status | Fixed in |
|---|---|---|
| trixie | Fixed | 2.1.1-3 |
| sid | Fixed | 2.1.1-3 |
| forky | Fixed | 2.1.1-3 |
| bullseye | Fixed | 2.1.1-3 |
| bookworm | Fixed | 2.1.1-3 |
| 8.0 | Affected | — |
Application impact
| Vendor | Product | Versions | Fixed |
|---|---|---|---|
| libexpat_project | libexpat | {"endExcluding":"2.2.0"} | 2.2.0 |
References
- http://www.debian.org/security/2016/dsa-3597
- http://www.openwall.com/lists/oss-security/2016/06/04/4
- http://www.openwall.com/lists/oss-security/2016/06/04/5
- http://www.oracle.com/technetwork/security-advisory/cpujul2018-4258247.html
- http://www.oracle.com/technetwork/topics/security/bulletinjul2016-3090568.html
- http://www.securityfocus.com/bid/91159
- http://www.ubuntu.com/usn/USN-3010-1
- https://kc.mcafee.com/corporate/index?page=content&id=SB10365
- https://lists.apache.org/thread.html/r58af02e294bd07f487e2c64ffc0a29b837db5600e33b6e698b9d696b%40%3Cissues.bookkeeper.apache.org%3E
- https://lists.apache.org/thread.html/rf4c02775860db415b4955778a131c2795223f61cb8c6a450893651e4%40%3Cissues.bookkeeper.apache.org%3E
- https://security.gentoo.org/glsa/201701-21
- https://source.android.com/security/bulletin/2016-11-01.html
- https://www.tenable.com/security/tns-2016-20
- https://www.suse.com/security/cve/CVE-2016-5300.html
- https://security-tracker.debian.org/tracker/CVE-2016-5300
CWEs
CWE-399
Community-verified mitigations for this CVE will appear above when contributors publish them.
Verify integrity in audit chain (admin only). AS-IS.