CVE Vulnerabilities

CVE-2020-9697

Missing Release of Memory after Effective Lifetime

Published: Aug 19, 2020 | Modified: Sep 08, 2021
CVSS 3.x
5.5
MEDIUM
Source:
NVD
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N
CVSS 2.x
4.3 MEDIUM
AV:N/AC:M/Au:N/C:P/I:N/A:N
RedHat/V2
RedHat/V3
Ubuntu

Adobe Acrobat and Reader versions 2020.009.20074 and earlier, 2020.001.30002, 2017.011.30171 and earlier, and 2015.006.30523 and earlier have a disclosure of sensitive data vulnerability. Successful exploitation could lead to memory leak.

Weakness

The product does not sufficiently track and release allocated memory after it has been used, which slowly consumes remaining memory.

Affected Software

Name Vendor Start Version End Version
Acrobat_dc Adobe 15.006.30060 (including) 15.006.30523 (including)
Acrobat_dc Adobe 15.008.20082 (including) 20.009.20074 (including)
Acrobat_dc Adobe 17.011.30059 (including) 17.011.30171 (including)
Acrobat_dc Adobe 20.001.30002 (including) 20.001.30002 (including)
Acrobat_reader_dc Adobe 15.006.30060 (including) 15.006.30523 (including)
Acrobat_reader_dc Adobe 15.008.20082 (including) 20.009.20074 (including)
Acrobat_reader_dc Adobe 17.011.30059 (including) 17.011.30171 (including)
Acrobat_reader_dc Adobe 20.001.30002 (including) 20.001.30002 (including)

Potential Mitigations

  • Choose a language or tool that provides automatic memory management, or makes manual memory management less error-prone.
  • For example, glibc in Linux provides protection against free of invalid pointers.
  • When using Xcode to target OS X or iOS, enable automatic reference counting (ARC) [REF-391].
  • To help correctly and consistently manage memory when programming in C++, consider using a smart pointer class such as std::auto_ptr (defined by ISO/IEC ISO/IEC 14882:2003), std::shared_ptr and std::unique_ptr (specified by an upcoming revision of the C++ standard, informally referred to as C++ 1x), or equivalent solutions such as Boost.

References