CVE-2023-44358: 
Adobe Acrobat Reader Continuous vulnerability analysis and mitigation

CVE-2023-44358 is an out-of-bounds read vulnerability affecting Adobe Acrobat Reader versions 23.006.20360 (and earlier) and 20.005.30524 (and earlier). The vulnerability was discovered in November 2023 and could lead to disclosure of sensitive memory. This vulnerability specifically affects the font parsing functionality in Adobe Acrobat Reader DC (NVD, ZDI).

The vulnerability exists within the parsing of embedded fonts in Adobe Acrobat Reader DC. The issue stems from the lack of proper validation of user-supplied data, which can result in a read past the end of an allocated object. The vulnerability has been assigned a CVSS v3.1 base score of 5.5 (Medium) with the vector string CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N (NVD).

If successfully exploited, this vulnerability could lead to disclosure of sensitive memory and potentially allow an attacker to bypass security mitigations such as ASLR (Address Space Layout Randomization). The vulnerability could be leveraged in conjunction with other vulnerabilities to execute arbitrary code in the context of the current process (ZDI).

Adobe has released security updates to address this vulnerability. Users are advised to update to the latest versions of Adobe Acrobat and Reader. The fix is included in Adobe's November 2023 security update (Adobe Security).