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cpe:2.3:a:egor:data::buffer::shared:*:*:*:*:*:*:*:*part: a version: update: buffer
| Vendor | Egor (27a1da35-6ab1-5af5-9023-7f96380e42f6) |
|---|---|
| Product | Data (70478be3-9a78-5b10-80ce-297fb9e5313b) |
| Edition | |
| Language | shared |
| Software edition | * |
| Target software | * |
| Target hardware | * |
| Other | * |
Notes
Imported from gcve-enriched-dumps CVE data
PURL mappings
| PURL | Source | Last updated |
|---|---|---|
| No PURL mappings for this CPE yet. | ||
Vulnerability references
| Identifier | cpeApplicability | Submitted | db.gcve.eu details | Rationale |
|---|---|---|---|---|
CVE:CVE-2026-64613 |
vulnerable | 2026-07-29 01:06:19.773548 |
Data::Buffer::Shared versions before 0.05 for Perl create a world-readable mmap backing file and open it without O_NOFOLLOW
Data::Buffer::Shared versions before 0.05 for Perl create a world-readable mmap backing file and open it without O_NOFOLLOW.
The segment is created in buf_generic.h with open(path, O_RDWR|O_CREAT|O_EXCL, 0666). O_EXCL blocks a pre-seeded file on create, but the mode is 0666, so under the default umask 022 the file is created mode 0644 (world-readable), and O_NOFOLLOW is absent, so a symlink planted at the path is followed when the segment is attached.
A "Shared" segment naturally lives in a shared directory such as /tmp or /dev/shm, where any local user can read the IPC payloads stored in the world-readable segment, and a pre-planted symlink at the path redirects the open to another file.
Published: 2026-07-21T19:05:49.579Z
Updated: 2026-07-23T12:25:36.375Z |
Imported from gcve-enriched-dumps CVE data |
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