Vulnerabilities > CVE-2023-48235 - Integer Overflow or Wraparound vulnerability in multiple products
Summary
Vim is an open source command line text editor. When parsing relative ex addresses one may unintentionally cause an overflow. Ironically this happens in the existing overflow check, because the line number becomes negative and LONG_MAX - lnum will cause the overflow. Impact is low, user interaction is required and a crash may not even happen in all situations. This issue has been addressed in commit `060623e` which has been included in release version 9.0.2110. Users are advised to upgrade. There are no known workarounds for this vulnerability.
Vulnerable Configurations
Common Weakness Enumeration (CWE)
Common Attack Pattern Enumeration and Classification (CAPEC)
- Forced Integer Overflow This attack forces an integer variable to go out of range. The integer variable is often used as an offset such as size of memory allocation or similarly. The attacker would typically control the value of such variable and try to get it out of range. For instance the integer in question is incremented past the maximum possible value, it may wrap to become a very small, or negative number, therefore providing a very incorrect value which can lead to unexpected behavior. At worst the attacker can execute arbitrary code.
References
- https://github.com/vim/vim/security/advisories/GHSA-6g74-hr6q-pr8g
- https://github.com/vim/vim/commit/060623e4a3bc72b011e7cd92bedb3bfb64e06200
- http://www.openwall.com/lists/oss-security/2023/11/16/1
- https://lists.fedoraproject.org/archives/list/[email protected]/message/M3VQF7CL3V6FGSEW37WNDFBRRILR65AK/
- https://lists.fedoraproject.org/archives/list/[email protected]/message/VNRNYLWXZOGTYWE5HMFNQ5FVE3HBUHF6/
- https://lists.fedoraproject.org/archives/list/[email protected]/message/4UJAK2W5S7G75ETDAEM3BDUCVSXCEGRD/
- https://security.netapp.com/advisory/ntap-20231227-0007/