CVE-2020-25725
Published: 11/21/2020 06:15:12
In Xpdf 4.02, SplashOutputDev::endType3Char(GfxState *state) SplashOutputDev.cc:3079 is trying to use the freed `t3GlyphStack->cache`, which causes an `heap-use-after-free` problem. The codes of a previous fix for nested Type 3 characters wasn't correctly handling the case where a Type 3 char referred to another char in the same Type 3 font.
MEDIUM
CVSS v3: 5
CVSS v3: 5
Status
| DocFilters Release | Package | State | Justification | Comment |
|---|---|---|---|---|
| 25.1 | xpdf (4.05) | Not Affected | Code Not Present | 4.05 does not match CVE configuration. |
| 24.4 | xpdf (4.05) | Not Affected | Code Not Present | 4.05 does not match CVE configuration. |
| 24.4.0 | xpdf (4.05) | Not Affected | Code Not Present | 4.05 does not match CVE configuration. |
| 24.3 | xpdf (4.05) | Not Affected | Code Not Present | 4.05 does not match CVE configuration. |
| 24.2.1 | xpdf (4.05) | Not Affected | Code Not Present | 4.05 does not match CVE configuration. |
| 24.2 | xpdf (4.05) | Not Affected | Code Not Present | 4.05 does not match CVE configuration. |
| 24.1 | xpdf (3.02) | Not Affected | Code Not Present | 3.02 does not match CVE configuration. |
| 23.3 | xpdf (3.02) | Not Affected | Code Not Present | 3.02 does not match CVE configuration. |
| 23.2.1 | xpdf (3.02) | Not Affected | Code Not Present | 3.02 does not match CVE configuration. |
| 23.2 | xpdf (3.02) | Not Affected | Code Not Present | 3.02 does not match CVE configuration. |
| 23.1 | xpdf (3.02) | Not Affected | Code Not Present | 3.02 does not match CVE configuration. |
Severity score breakdown
Attack Complexity
LOW
Attack Vector
LOCAL
Availability Impact
HIGH
Base Score
5
Base Severity
MEDIUM
Confidentiality Impact
NONE
Integrity Impact
NONE
Privileges Required
LOW
Scope
UNCHANGED
User Interaction
REQUIRED
Vector String
CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:N/I:N/A:H
Version
3.1