SRC-2019-0058 : Adobe Photoshop CC Type 2 Font Charstring callothersubr Type Confusion Remote Code Execution Vulnerability
This vulnerability allows remote attackers to execute arbitrary code on vulnerable installations of Adobe Photoshop CC. User interaction is required to exploit this vulnerability in that the target must visit a malicious page or open a malicious file.
The specific flaw exists within the processing of PostScript files. The issue results from the lack of proper validation of user-supplied data, which can result in a type confusion condition and subsequent out-of-bounds write on the stack. An attacker can leverage this vulnerability to execute code in the context of the current process.
Adobe has issued an update to correct this vulnerability. More details can be found at:
- 2019-04-04 – Verified and acquired by iDefense
- 2019-08-15 – Coordinated public release of advisory
This vulnerability was discovered by Steven Seeley (mr_me) of Source Incite
Source Incite would like to acknowledge iDefense's Vulnerability Contributor Program for the help with co-ordination of this vulnerability.