Bug 2073013 (CVE-2022-1154)
| Summary: | CVE-2022-1154 vim: use after free in utf_ptr2char | ||
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| Product: | [Other] Security Response | Reporter: | Marian Rehak <mrehak> |
| Component: | vulnerability | Assignee: | Red Hat Product Security <security-response-team> |
| Status: | CLOSED ERRATA | QA Contact: | |
| Severity: | low | Docs Contact: | |
| Priority: | low | ||
| Version: | unspecified | CC: | fhrdina, gchamoul, karsten, michal.skrivanek, mperina, sbonazzo, zdohnal |
| Target Milestone: | --- | Keywords: | Security |
| Target Release: | --- | ||
| Hardware: | All | ||
| OS: | Linux | ||
| Whiteboard: | |||
| Fixed In Version: | vim 8.2.4646 | Doc Type: | If docs needed, set a value |
| Doc Text: |
A heap use-after-free vulnerability was found in Vim's utf_ptr2char() function of the src/mbyte.c file. This flaw occurs because vim is using a buffer line after it has been freed in the old regexp engine. This flaw allows an attacker to trick a user into opening a specially crafted file, triggering a heap use-after-free that causes an application to crash, possibly executing code and corrupting memory.
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Story Points: | --- |
| Clone Of: | Environment: | ||
| Last Closed: | 2022-07-01 09:26:09 UTC | Type: | --- |
| Regression: | --- | Mount Type: | --- |
| Documentation: | --- | CRM: | |
| Verified Versions: | Category: | --- | |
| oVirt Team: | --- | RHEL 7.3 requirements from Atomic Host: | |
| Cloudforms Team: | --- | Target Upstream Version: | |
| Embargoed: | |||
| Bug Depends On: | 2073014, 2073389, 2073390, 2073391, 2073392, 2073393, 2073394 | ||
| Bug Blocks: | 2073017 | ||
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Description
Marian Rehak
2022-04-07 13:17:04 UTC
Created vim tracking bugs for this issue: Affects: fedora-all [bug 2073014] Note that this is not a "remote execution" situation; the only way to trigger this is by opening a file with Vim. Yes, potentially Vim could be set up to automatically open untrusted files submitted to it, but under typical use-cases, this would not be considered a remote code execution vulnerability in the same manner of say a server that receives a network packet and can suddenly be taken over by an attacker via the Internet. This issue has been addressed in the following products: Red Hat Enterprise Linux 8 Via RHSA-2022:1552 https://access.redhat.com/errata/RHSA-2022:1552 This issue has been addressed in the following products: Red Hat Enterprise Linux 9 Via RHSA-2022:5242 https://access.redhat.com/errata/RHSA-2022:5242 This bug is now closed. Further updates for individual products will be reflected on the CVE page(s): https://access.redhat.com/security/cve/cve-2022-1154 |