Summary
The libsepol library provides an API for the manipulation of SELinux binary policies. It is used by checkpolicy (the policy compiler) and similar tools, as well as by programs like load_policy that need to perform specific transformations on binary policies (for example, customizing policy boolean settings).
Security Fix(es):
* libsepol: use-after-free in __cil_verify_classperms() (CVE-2021-36084)
* libsepol: use-after-free in __cil_verify_classperms() (CVE-2021-36085)
* libsepol: use-after-free in cil_reset_classpermission() (CVE-2021-36086)
* libsepol: heap-based buffer overflow in ebitmap_match_any() (CVE-2021-36087)
For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.
Additional Changes:
For detailed information on changes in this release, see the Rocky Linux 8.5 Release Notes linked from the References section.
Fixed packages 1
| Release | Package | Fixed in |
|---|---|---|
| Rocky Linux · 8 | libsepol | 0:2.9-3.el8 |
Vulnerabilities 4
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Unscored —
The CIL compiler in SELinux 3.2 has a use-after-free in __cil_verify_classperms (called from __cil_verify_classpermissi…
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Unscored —
The CIL compiler in SELinux 3.2 has a use-after-free in __cil_verify_classperms (called from __verify_map_perm_classper…
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Unscored —
The CIL compiler in SELinux 3.2 has a use-after-free in cil_reset_classpermission (called from cil_reset_classperms_set…
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Unscored —
The CIL compiler in SELinux 3.2 has a heap-based buffer over-read in ebitmap_match_any (called indirectly from cil_chec…