CVE-2018-6406
The function ParseVP9SuperFrameIndex in common/libwebm_util.cc in libwebm through 2018-01-30 does...
The function ParseVP9SuperFrameIndex in common/libwebm_util.cc in libwebm through 2018-01-30 does not validate the child_frame_length data obtained from a .webm file, which allows remote attackers to cause an information leak or a denial of service (heap-based buffer over-read and later out-of-bounds write), or possibly have unspecified other impact.
Attack profile
How easy it is to exploit
- Attack vector
- Network
- Complexity
- Low
- Privileges needed
- None
- User interaction
- Required
What an attacker can affect
- Confidentiality
- High
- Integrity
- High
- Availability
- High
Exploit likelihood
What each source reports
NVD Score used
The function ParseVP9SuperFrameIndex in common/libwebm_util.cc in libwebm through 2018-01-30 does not validate the child_frame_length data obtained from a .webm file, which allows remote attackers to cause an information leak or a denial of service (heap-based buffer over-read and later out-of-bounds write), or possibly have unspecified other impact.
- Record
CVE-2018-6406- CVSS 3.0
- 8.8 High
CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H - CVSS 2.0
- 6.8 Medium
AV:N/AC:M/Au:N/C:P/I:P/A:P - Weakness
- CWE-125
- Updated
- 2026-11-02
CVE List No score
The function ParseVP9SuperFrameIndex in common/libwebm_util.cc in libwebm through 2018-01-30 does not validate the child_frame_length data obtained from a .webm file, which allows remote attackers to cause an information leak or a denial of service (heap-based buffer over-read and later out-of-bounds write), or possibly have unspecified other impact.
- Record
CVE-2018-6406- Updated
- 2026-11-02
EUVDEUVD-2018-18163 No score
The function ParseVP9SuperFrameIndex in common/libwebm_util.cc in libwebm through 2018-01-30 does not validate the child_frame_length data obtained from a .webm file, which allows remote attackers to cause an information leak or a denial of service (heap-based buffer over-read and later out-of-bounds write), or possibly have unspecified other impact.
- Record
EUVD-2018-18163- Updated
- 2026-11-03
GitHub AdvisoriesGHSA-929q-cjpr-43v5
The function ParseVP9SuperFrameIndex in common/libwebm_util.cc in libwebm through 2018-01-30 does...
The function ParseVP9SuperFrameIndex in common/libwebm_util.cc in libwebm through 2018-01-30 does not validate the child_frame_length data obtained from a .webm file, which allows remote attackers to cause an information leak or a denial of service (heap-based buffer over-read and later out-of-bounds write), or possibly have unspecified other impact.
- Record
GHSA-929q-cjpr-43v5- CVSS 3.0
- 8.8 High
CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H - Weakness
- CWE-125
- Updated
- 2026-11-02
OSVUBUNTU-CVE-2018-6406
The function ParseVP9SuperFrameIndex in common/libwebm_util.cc in libwebm through 2018-01-30 does not validate the child_frame_length data obtained from a .webm file, which allows remote attackers to cause an information leak or a denial of service (heap-based buffer over-read and later out-of-bounds write), or possibly have unspecified other impact.
- Record
UBUNTU-CVE-2018-6406- CVSS 3.0
- 8.8 High
CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H - Updated
- 2026-11-02
OSVopenSUSE-SU-2018:0359-1 No score
Security update for chromium
This update for chromium to version 64.0.3282.140 fixes the following security issues:
- CVE-2018-6406: Various asan fixes (boo#1078463, boo#1079021)
The regular expression library re2 was updated to 2018-02-01.
- Record
openSUSE-SU-2018:0359-1- Updated
- 2026-11-02
OSVopenSUSE-SU-2018:0360-1 No score
Security update for chromium
This update for chromium to version 64.0.3282.140 fixes the following security issues:
- CVE-2018-6406: Various asan fixes (boo#1078463, boo#1079021)
The regular expression library re2 was updated to 2018-02-01.
- Record
openSUSE-SU-2018:0360-1- Updated
- 2026-11-02
OSVopenSUSE-SU-2024:10681-1 No score
chromedriver-93.0.4577.82-1.1 on GA media
These are all security issues fixed in the chromedriver-93.0.4577.82-1.1 package on the GA media of openSUSE Tumbleweed.
- Record
openSUSE-SU-2024:10681-1- Updated
- 2026-11-02
OSVopenSUSE-SU-2024:12948-1 No score
ungoogled-chromium-113.0.5672.92-1.1 on GA media
These are all security issues fixed in the ungoogled-chromium-113.0.5672.92-1.1 package on the GA media of openSUSE Tumbleweed.
- Record
openSUSE-SU-2024:12948-1- Updated
- 2026-11-02
Affected products
Affected packages
| Package | Affected | Fixed |
|---|---|---|
oxide-qtUbuntu:16.04:LTS |
All versions, plus listed versions 1.9.5-0ubuntu11.10.3-0ubuntu0.15.10.11.10.3-0ubuntu0.15.10.21.11.3-0ubuntu31.11.4-0ubuntu1 Show 17 moreShow less1.11.5-0ubuntu11.12.5-0ubuntu11.12.6-0ubuntu11.12.7-0ubuntu11.13.6-0ubuntu11.14.7-0ubuntu11.14.9-0ubuntu0.16.04.11.15.7-0ubuntu0.16.04.11.15.8-0ubuntu0.16.04.11.16.5-0ubuntu0.16.04.11.17.7-0ubuntu0.16.04.11.17.9-0ubuntu0.16.04.11.18.3-0ubuntu0.16.04.11.18.5-0ubuntu0.16.04.11.19.4-0ubuntu0.16.04.11.20.4-0ubuntu0.16.04.11.21.5-0ubuntu0.16.04.1 |
None known |
chromiumSUSE:Package Hub 12 |
before 64.0.3282.140-49.1 | 64.0.3282.140-49.1 |
re2SUSE:Package Hub 12 |
before 20180201-8.1 | 20180201-8.1 |
chromiumSUSE:Package Hub 12 SP2 |
before 64.0.3282.140-49.1 | 64.0.3282.140-49.1 |
re2SUSE:Package Hub 12 SP2 |
before 20180201-8.1 | 20180201-8.1 |
chromiumopenSUSE:Tumbleweed |
before 93.0.4577.82-1.1 | 93.0.4577.82-1.1 |
chromiumopenSUSE:Tumbleweed |
before 113.0.5672.92-1.1 | 113.0.5672.92-1.1 |
History
| Recorded | Changed | Sources |
|---|---|---|
| aliases | EUVD | |
| first indexed | CVE List, GitHub Advisories, NVD, OSV |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2018-6406 is a high vulnerability (CVSS 8.8) in Webmproject Libwebm, published January 30, 2018. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 2.00%, the 80th percentile. Fixed in chromium 64.0.3282.140-49.1.
References
bugs.chromium.org/p/webm/issues/detail?id=1492
github.com/dwfault/PoCs/blob/master/libwebm%20ParseVP9SuperFrameIndex%20memory%20corruption/libwebm%20ParseVP9SuperFrameIndex%20OOB%20read.md
nvd.nist.gov/vuln/detail/CVE-2018-6406
ubuntu.com/security/CVE-2018-6406
cve.org/CVERecord?id=CVE-2018-6406
Show 194 moreShow less
bugzilla.suse.com/1078463
suse.com/security/cve/CVE-2018-6406
Left out here: 2,118 references. The JSON record has them.