CVE-2023-27534
curl - security update
8.8
HIGH
CVSS 3.1
EPSS 0.06%
Description
A path traversal vulnerability exists in curl <8.0.0 SFTP implementation causes the tilde (~) character to be wrongly replaced when used as a prefix in the first path element, in addition to its intended use as the first element to indicate a path relative to the user's home directory. Attackers can exploit this flaw to bypass filtering or execute arbitrary code by crafting a path like /~2/foo while accessing a server with a specific user.
How to fix CVE-2023-27534
To remediate CVE-2023-27534, upgrade the affected package to a fixed version below.
- —upgrade to 8.0.1-r0 or later
- —upgrade to 7.74.0-1.3+deb11u8 or later
- —upgrade to 7.64.0-4+deb10u9 or later
Is CVE-2023-27534 being exploited?
Low — EPSS is 0.1%, meaning exploitation activity has not been observed at scale.
Affected packages (3)
- from 0, < 8.0.1-r0
- from 0, < 7.74.0-1.3+deb11u8
- from 0, < 7.64.0-4+deb10u9
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | HIGH8.8 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |