Ubuntu.comUB:CVE-2018-6548CVE-2018-6548
7.5 High
CVSS2
Attack Vector
NETWORK
Attack Complexity
LOW
Authentication
NONE
Confidentiality Impact
PARTIAL
Integrity Impact
PARTIAL
Availability Impact
PARTIAL
AV:N/AC:L/Au:N/C:P/I:P/A:P
9.8 High
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
0.006 Low
EPSS
Percentile
78.6%
A use-after-free issue was discovered in libwebm through 2018-02-02. If a
Vp9HeaderParser was initialized once before, its property frame_ would not
be changed because of code in vp9parser::Vp9HeaderParser::SetFrame. Its
frame_ could be freed while the corresponding pointer would not be updated,
leading to a dangling pointer. This is related to the function
OutputCluster in webm_info.cc.
Bugs
Notes
| Author | Note |
|---|---|
| mdeslaur | marking chromium-browser as ignored as we do full-version upgrades and we rely on upstream’s bundled libwebm |
References
github.com/dwfault/PoCs/blob/master/libwebm%20Vp9HeaderParser%20UAF%20by%20PrintVP9Info/libwebm%20Vp9HeaderParser%20UAF%20by%20PrintVP9Info.md
launchpad.net/bugs/cve/CVE-2018-6548
nvd.nist.gov/vuln/detail/CVE-2018-6548
security-tracker.debian.org/tracker/CVE-2018-6548
www.cve.org/CVERecord?id=CVE-2018-6548
Related
7.5 High
CVSS2
Attack Vector
NETWORK
Attack Complexity
LOW
Authentication
NONE
Confidentiality Impact
PARTIAL
Integrity Impact
PARTIAL
Availability Impact
PARTIAL
AV:N/AC:L/Au:N/C:P/I:P/A:P
9.8 High
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
0.006 Low
EPSS
Percentile
78.6%