vulnerability
Arch Linux: Arbitrary code execution (CVE-2017-5340)
| Severity | CVSS | Published | Added | Modified |
|---|---|---|---|---|
| 7 | (AV:N/AC:L/Au:N/C:P/I:P/A:P) | Jan 11, 2017 | Jul 11, 2025 | Nov 27, 2025 |
Severity
7
CVSS
(AV:N/AC:L/Au:N/C:P/I:P/A:P)
Published
Jan 11, 2017
Added
Jul 11, 2025
Modified
Nov 27, 2025
Description
It was found that PHP uses uninitialized memory during calls to `unserialize()`. The payload supplied to `unserialize()` may control this uninitialized memory region and thus may be used to trick PHP into operating on faked objects and calling attacker controlled destructor function pointers, effectively allowing arbitrary code execution via specially crafted serialized data.
Solution
arch-linux-upgrade-latest
References
- CVE-2017-5340
- https://attackerkb.com/topics/CVE-2017-5340
- URL-http://www.openwall.com/lists/oss-security/2016/12/12/2
- URL-http://www.securityfocus.com/bid/95371
- URL-http://www.securitytracker.com/id/1037659
- URL-https://access.redhat.com/errata/RHSA-2018:1296
- URL-https://bugs.php.net/bug.php?id=73832
- URL-https://github.com/php/php-src/commit/4cc0286f2f3780abc6084bcdae5dce595daa3c12
- URL-https://security.archlinux.org/ASA-201701-28
- URL-https://security.netapp.com/advisory/ntap-20180112-0001/
- CWE-190
NEW
Explore Exposure Command
Confidently identify and prioritize exposures from endpoint to cloud with full attack surface visibility and threat-aware risk context.