An unprivileged local user can inject a shared library via LD_PRELOAD into a set-user-ID or set-group-ID Linux binary, gaining the privileges of that binary.
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Mon, 29 Jun 2026 13:30:00 +0000
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cvssV3_1
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Sat, 27 Jun 2026 14:30:00 +0000
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| First Time appeared |
Freebsd
Freebsd freebsd |
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| Vendors & Products |
Freebsd
Freebsd freebsd |
Sat, 27 Jun 2026 09:15:00 +0000
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| Description | The Linuxulator determined whether a binary was set-user-ID or set-group-ID by checking the P_SUGID process flag. During execve(2), this flag is not yet set at the point where the auxiliary vector is constructed, so AT_SECURE was incorrectly set to zero for set-user-ID and set-group-ID executables. An unprivileged local user can inject a shared library via LD_PRELOAD into a set-user-ID or set-group-ID Linux binary, gaining the privileges of that binary. | |
| Title | Flaw in Linuxulator execution of setugid binaries | |
| Weaknesses | CWE-266 | |
| References |
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Status: PUBLISHED
Assigner: freebsd
Published:
Updated: 2026-06-29T13:05:38.668Z
Reserved: 2026-05-29T20:24:28.615Z
Link: CVE-2026-49413
Updated: 2026-06-29T13:05:27.585Z
No data.
No data.
OpenCVE Enrichment
Updated: 2026-06-29T14:45:04Z