CVE-2023-48234: overflow in nv_z_get_count in vim
First published: Thu Nov 16 2023(Updated: )
Vim is an open source command line text editor. When getting the count for a normal mode z command, it may overflow for large counts given. Impact is low, user interaction is required and a crash may not even happen in all situations. This issue has been addressed in commit `58f9befca1` which has been included in release version 9.0.2109. Users are advised to upgrade. There are no known workarounds for this vulnerability.
Credit: security-advisories@github.com security-advisories@github.com
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Vim Vim | <9.0.2109 | |
| Fedoraproject Fedora | =37 | |
| Fedoraproject Fedora | =38 | |
| Fedoraproject Fedora | =39 | |
| ubuntu/vim | <2:8.0.1453-1ubuntu1.13+ | 2:8.0.1453-1ubuntu1.13+ |
| ubuntu/vim | <2:8.1.2269-1ubuntu5.21 | 2:8.1.2269-1ubuntu5.21 |
| ubuntu/vim | <2:8.2.3995-1ubuntu2.15 | 2:8.2.3995-1ubuntu2.15 |
| ubuntu/vim | <2:9.0.1000-4ubuntu3.3 | 2:9.0.1000-4ubuntu3.3 |
| ubuntu/vim | <2:9.0.1672-1ubuntu2.2 | 2:9.0.1672-1ubuntu2.2 |
| ubuntu/vim | <2:7.4.052-1ubuntu3.1+ | 2:7.4.052-1ubuntu3.1+ |
| ubuntu/vim | <2:7.4.1689-3ubuntu1.5+ | 2:7.4.1689-3ubuntu1.5+ |
| debian/vim | <=2:8.2.2434-3+deb11u1<=2:9.0.1378-2 | 2:9.1.0496-1 2:9.1.0709-1 |
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Reference Links
- https://github.com/vim/vim/security/advisories/GHSA-59gw-c949-6phq
- https://github.com/vim/vim/commit/58f9befca1fa172068effad7f2ea5a9d6a7b0cca
- http://www.openwall.com/lists/oss-security/2023/11/16/1
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/M3VQF7CL3V6FGSEW37WNDFBRRILR65AK/
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/VNRNYLWXZOGTYWE5HMFNQ5FVE3HBUHF6/
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/4UJAK2W5S7G75ETDAEM3BDUCVSXCEGRD/
- https://security.netapp.com/advisory/ntap-20231227-0004/
- https://launchpad.net/bugs/cve/CVE-2023-48234
- https://security-tracker.debian.org/tracker/CVE-2023-48234
- https://github.com/vim/vim/commit/58f9befca1fa172068effad7f2ea5a9d6a7b0cca (v9.0.2109)
- https://ubuntu.com/security/notices/USN-6557-1
- https://www.cve.org/CVERecord?id=CVE-2023-48234
- https://nvd.nist.gov/vuln/detail/CVE-2023-48234
- https://ubuntu.com/security/CVE-2023-48234
Frequently Asked Questions
What is CVE-2023-48234?
CVE-2023-48234 is a vulnerability in Vim, an open source command line text editor, that allows for an overflow in nv_z_get_count, potentially causing a crash in certain situations.
What is the severity of CVE-2023-48234?
The severity of CVE-2023-48234 is medium with a severity value of 4.3.
How does CVE-2023-48234 impact users?
CVE-2023-48234 has a low impact and requires user interaction, with a potential crash in some cases.
Which software versions are affected by CVE-2023-48234?
Vim versions up to exclusive 9.0.2109 and Fedora 39 are affected by CVE-2023-48234.
How can CVE-2023-48234 be fixed?
The issue has been addressed in commit 58f9befca1 of Vim.
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