Ubuntu.comUB:CVE-2017-8906CVE-2017-8906
4.3 Medium
CVSS2
Attack Vector
NETWORK
Attack Complexity
MEDIUM
Authentication
NONE
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
PARTIAL
AV:N/AC:M/Au:N/C:N/I:N/A:P
5.5 Medium
CVSS3
Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
0.001 Low
EPSS
Percentile
20.2%
An integer underflow vulnerability exists in pixel-a.asm, the x86 assembly
code for planeClipAndMax() in MulticoreWare x265 through 2.4, as used by
the x265_encoder_encode dependency in libbpg and other products. A small
picture can cause an integer underflow, which leads to a Denial of Service
in the process of encoding.
Notes
| Author | Note |
|---|---|
| msalvatore | Affected code is NOT disabled in xenial. Xenial is affected. Upstream has not released a patch, rather, they have “disabled ‘planeClipAndMax’ assembly primitives” |
| ccdm94 | it seems like upstream has already closed this issue and will be providing a fix for it other than the suggested disabling of the ‘planeClipAndMax’ assembly primitives. Therefore, considering that this has been deferred for 5+ years and there were no further changes that allow this to be patched in xenial, xenial will be marked as ignored. |
Related
4.3 Medium
CVSS2
Attack Vector
NETWORK
Attack Complexity
MEDIUM
Authentication
NONE
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
PARTIAL
AV:N/AC:M/Au:N/C:N/I:N/A:P
5.5 Medium
CVSS3
Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
0.001 Low
EPSS
Percentile
20.2%