CVE-2015-8789
critical
CVSS v3
9.6
CVSS v2
9.3
VIR risk
9.6
Description
Use-after-free vulnerability in the EbmlMaster::Read function in libEBML before 1.3.3 allows context-dependent attackers to have unspecified impact via a "deeply nested element with infinite size" followed by another element of an upper level in an EBML document.
Predictions
Exploit likelihood
96%
Patch ETA
—
Heuristic predictions, AS-IS, for prioritization only.
Mitigations
Vendor advisory: debian — https://security-tracker.debian.org/tracker/CVE-2015-8789
Vendor advisory: cve@mitre.org — https://github.com/Matroska-Org/libebml/blob/release-1.3.3/ChangeLog
Vendor advisory: cve@mitre.org — http://lists.matroska.org/pipermail/matroska-users/2015-October/006985.html
OS impact
| OS | Version | Status | Fixed in |
|---|---|---|---|
| debian | bookworm | fixed | 1.3.3-1 |
| debian | bullseye | fixed | 1.3.3-1 |
| debian | forky | fixed | 1.3.3-1 |
| debian | sid | fixed | 1.3.3-1 |
| debian | trixie | fixed | 1.3.3-1 |
Application impact
| Vendor | Product | Versions | Fixed |
|---|---|---|---|
| matroska | libebml | {"endIncluding":"1.3.2"} | |
References
- http://lists.matroska.org/pipermail/matroska-users/2015-October/006985.html
- http://lists.opensuse.org/opensuse-updates/2016-01/msg00035.html
- http://www.debian.org/security/2016/dsa-3538
- http://www.securityfocus.com/bid/94924
- http://www.talosintelligence.com/reports/TALOS-2016-0037/
- https://github.com/Matroska-Org/libebml/blob/release-1.3.3/ChangeLog
- https://github.com/Matroska-Org/libebml/commit/88409e2a94dd3b40ff81d08bf6d92f486d036b24
- https://security-tracker.debian.org/tracker/CVE-2015-8789
Verify integrity in audit chain (admin only). AS-IS.