CVE-2016-4472
Description
The overflow protection in Expat is removed by compilers with certain optimization settings, which allows remote attackers to cause a denial of service (crash) or possibly execute arbitrary code via crafted XML data. NOTE: this vulnerability exists because of an incomplete fix for CVE-2015-1283 and CVE-2015-2716.
Predictions
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 โ if you've already worked around this in production โ publish your fix to the community-verified tier.
โ Propose a mitigation on Community โ 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 |
|---|---|---|
| โ | Affected | โ |
Ubuntu Affected 1 release
| Version | Status | Fixed in |
|---|---|---|
| 12.04 | Affected | โ |
Debian Fixed 5 releases
| Version | Status | Fixed in |
|---|---|---|
| trixie | Fixed | 2.1.1-2 |
| sid | Fixed | 2.1.1-2 |
| forky | Fixed | 2.1.1-2 |
| bullseye | Fixed | 2.1.1-2 |
| bookworm | Fixed | 2.1.1-2 |
Application impact
| Vendor | Product | Versions | Fixed |
|---|---|---|---|
| libexpat_project | libexpat | {"endIncluding":"2.1.1"} | |
| mcafee | policy_auditor | {"endExcluding":"6.5.1"} | 6.5.1 |
| python | python | {"startIncluding":"2.7.0","endExcluding":"2.7.15"} | 2.7.15 |
References
- https://www.suse.com/security/cve/CVE-2016-4472.html
- http://www.securityfocus.com/bid/91528
- http://www.ubuntu.com/usn/USN-3013-1
- https://bugzilla.redhat.com/show_bug.cgi?id=1344251
- https://kc.mcafee.com/corporate/index?page=content&id=SB10365
- https://security.gentoo.org/glsa/201701-21
- https://sourceforge.net/p/expat/code_git/ci/f0bec73b018caa07d3e75ec8dd967f3785d71bde
- https://www.tenable.com/security/tns-2016-20
- https://security-tracker.debian.org/tracker/CVE-2016-4472
CWEs
CWE-119
Community-verified mitigations for this CVE will appear above when contributors publish them.
Verify integrity in audit chain (admin only). AS-IS.