2.9
Low
CVE-2026-16517 A signed integer overflow vulnerability was found in libarchive's ZIP writer
Description
A signed integer overflow vulnerability was found in libarchive's ZIP writer. In the archive_write_zip_header function in archive_write_set_format_zip.c, when ZIP encryption is enabled and the entry file size is close to INT64_MAX, the addition of the encryption overhead to the entry size overflows int64_t, resulting in undefined behavior. This could lead to incorrect Zip64 extension decisions or potential memory corruption.
Affected products and versions
| Product | Affected versions | Fixed in |
|---|---|---|
| Red Hat Enterprise Linux 10 | Versions not published | |
| Red Hat Enterprise Linux 6 | Versions not published | |
| Red Hat Enterprise Linux 7 | Versions not published | |
| Red Hat Enterprise Linux 8 | Versions not published | |
| Red Hat Enterprise Linux 9 | Versions not published | |
| Red Hat Hardened Images 3.8 | earliest → < 3.8.8-3.1.hum1 | 3.8.8-3.1.hum1 |
| Red Hat OpenShift Container Platform 4 | Versions not published | |
| Red Hat OpenShift Container Platform 5 | Versions not published |
References
- RHSA-2026:43818 access.redhat.com
- RHSA-2026:69553 access.redhat.com
- access.redhat.com access.redhat.com
- RHBZ#2505492 bugzilla.redhat.com
Timeline
- Published
- Last modified
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