Vulnerabilities > CVE-2019-9878 - Out-of-bounds Read vulnerability in multiple products
Attack vector
LOCAL Attack complexity
LOW Privileges required
NONE Confidentiality impact
HIGH Integrity impact
HIGH Availability impact
HIGH Summary
There is an invalid memory access in the function GfxIndexedColorSpace::mapColorToBase() located in GfxState.cc in Xpdf 4.0.0, as used in pdfalto 0.2. It can be triggered by (for example) sending a crafted pdf file to the pdftops binary. It allows an attacker to cause Denial of Service (Segmentation fault) or possibly have unspecified other impact.
Vulnerable Configurations
Part | Description | Count |
---|---|---|
Application | 1 | |
Application | 1 |
Common Weakness Enumeration (CWE)
Common Attack Pattern Enumeration and Classification (CAPEC)
- Overread Buffers An adversary attacks a target by providing input that causes an application to read beyond the boundary of a defined buffer. This typically occurs when a value influencing where to start or stop reading is set to reflect positions outside of the valid memory location of the buffer. This type of attack may result in exposure of sensitive information, a system crash, or arbitrary code execution.
References
- https://github.com/kermitt2/pdfalto/issues/46
- https://research.loginsoft.com/bugs/invalid-memory-access-in-gfxindexedcolorspacemapcolortobase-pdfalto-0-2/
- https://github.com/kermitt2/pdfalto/issues/46
- https://research.loginsoft.com/bugs/invalid-memory-access-in-gfxindexedcolorspacemapcolortobase-pdfalto-0-2/