Ubuntu.comUB:CVE-2020-36773CVE-2020-36773
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:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
6.8 Medium
AI Score
Confidence
High
0.001 Low
EPSS
Percentile
26.1%
Artifex Ghostscript before 9.53.0 has an out-of-bounds write and
use-after-free in devices/vector/gdevtxtw.c (for txtwrite) because a single
character code in a PDF document can map to more than one Unicode code
point (e.g., for a ligature).
Bugs
- <https://bugs.ghostscript.com/show_bug.cgi?id=702229>
- <https://bugs.ghostscript.com/show_bug.cgi?id=702346>
- <https://bugzilla.opensuse.org/show_bug.cgi?id=1177922>
Notes
| Author | Note |
|---|---|
| mdeslaur | This issue was introduced in 9.51 as described in the patch. The reproducer doesn’t work on focal. |
Related
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:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
6.8 Medium
AI Score
Confidence
High
0.001 Low
EPSS
Percentile
26.1%