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vulnerabilityCVE-2023-27534
Name
CVE-2023-27534
Source
NVD ( link)Debian ( link)
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.
Published Date
Updated Date
Workaround
-

Analysis#


Affected Component
Analysis
curl
Patched

Vulnerability Ratings#


8.8
CVSSv31
8.8
CVSSv31
NaN
other

Others affected components#


Name
Project
Project Version
Version
Status
buildroot
2025.02.x
8.20.0
Not Affected
buildroot
master
8.21.0
Not Affected
openwrt
master
8.19.0-r2
Not Affected
openwrt
master
8.20.0-r1
Not Affected
openwrt
openwrt-25.12
8.19.0-r2
Not Affected
openwrt
openwrt-25.12
8.14.1-r1
Not Affected
yocto
master
8.20.0
Not Affected
yocto
scarthgap
8.7.1
Not Affected

Resolved with patches#


curl (yocto:kirkstone)

#
Title
Author
Resolve
1
curl_path: create the new path with dynbuf
Daniel Stenberg <daniel@haxx.se>
CVE-2023-27534