UBUNTU-CVE-2023-27534

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Source
https://ubuntu.com/security/CVE-2023-27534
Import Source
https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2023/UBUNTU-CVE-2023-27534.json
JSON Data
https://api.osv.dev/v1/vulns/UBUNTU-CVE-2023-27534
Upstream
Downstream
Related
Published
2023-03-20T00:00:00Z
Modified
2025-09-08T16:56:11Z
Severity
  • 8.8 (High) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H CVSS Calculator
  • 8.8 (High) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H CVSS Calculator
  • Ubuntu - low
Summary
[none]
Details

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.

References

Affected packages

Ubuntu:18.04:LTS / curl

Package

Name
curl
Purl
pkg:deb/ubuntu/curl@7.58.0-2ubuntu3.24?arch=source&distro=bionic

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
7.58.0-2ubuntu3.24

Affected versions

7.*

7.55.1-1ubuntu2
7.55.1-1ubuntu2.1
7.57.0-1ubuntu1
7.58.0-2ubuntu1
7.58.0-2ubuntu2
7.58.0-2ubuntu3
7.58.0-2ubuntu3.1
7.58.0-2ubuntu3.2
7.58.0-2ubuntu3.3
7.58.0-2ubuntu3.5
7.58.0-2ubuntu3.6
7.58.0-2ubuntu3.7
7.58.0-2ubuntu3.8
7.58.0-2ubuntu3.9
7.58.0-2ubuntu3.10
7.58.0-2ubuntu3.12
7.58.0-2ubuntu3.13
7.58.0-2ubuntu3.14
7.58.0-2ubuntu3.15
7.58.0-2ubuntu3.16
7.58.0-2ubuntu3.17
7.58.0-2ubuntu3.18
7.58.0-2ubuntu3.19
7.58.0-2ubuntu3.20
7.58.0-2ubuntu3.21
7.58.0-2ubuntu3.22
7.58.0-2ubuntu3.23

Ecosystem specific 

{
    "binaries": [
        {
            "binary_version": "7.58.0-2ubuntu3.24",
            "binary_name": "curl"
        },
        {
            "binary_version": "7.58.0-2ubuntu3.24",
            "binary_name": "libcurl3-gnutls"
        },
        {
            "binary_version": "7.58.0-2ubuntu3.24",
            "binary_name": "libcurl3-nss"
        },
        {
            "binary_version": "7.58.0-2ubuntu3.24",
            "binary_name": "libcurl4"
        },
        {
            "binary_version": "7.58.0-2ubuntu3.24",
            "binary_name": "libcurl4-gnutls-dev"
        },
        {
            "binary_version": "7.58.0-2ubuntu3.24",
            "binary_name": "libcurl4-nss-dev"
        },
        {
            "binary_version": "7.58.0-2ubuntu3.24",
            "binary_name": "libcurl4-openssl-dev"
        }
    ],
    "availability": "No subscription required"
}

Ubuntu:20.04:LTS / curl

Package

Name
curl
Purl
pkg:deb/ubuntu/curl@7.68.0-1ubuntu2.18?arch=source&distro=focal

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
7.68.0-1ubuntu2.18

Affected versions

7.*

7.65.3-1ubuntu3
7.65.3-1ubuntu4
7.66.0-1ubuntu1
7.67.0-2ubuntu1
7.68.0-1ubuntu1
7.68.0-1ubuntu2
7.68.0-1ubuntu2.1
7.68.0-1ubuntu2.2
7.68.0-1ubuntu2.4
7.68.0-1ubuntu2.5
7.68.0-1ubuntu2.6
7.68.0-1ubuntu2.7
7.68.0-1ubuntu2.10
7.68.0-1ubuntu2.11
7.68.0-1ubuntu2.12
7.68.0-1ubuntu2.13
7.68.0-1ubuntu2.14
7.68.0-1ubuntu2.15
7.68.0-1ubuntu2.16

Ecosystem specific 

{
    "binaries": [
        {
            "binary_version": "7.68.0-1ubuntu2.18",
            "binary_name": "curl"
        },
        {
            "binary_version": "7.68.0-1ubuntu2.18",
            "binary_name": "libcurl3-gnutls"
        },
        {
            "binary_version": "7.68.0-1ubuntu2.18",
            "binary_name": "libcurl3-nss"
        },
        {
            "binary_version": "7.68.0-1ubuntu2.18",
            "binary_name": "libcurl4"
        },
        {
            "binary_version": "7.68.0-1ubuntu2.18",
            "binary_name": "libcurl4-gnutls-dev"
        },
        {
            "binary_version": "7.68.0-1ubuntu2.18",
            "binary_name": "libcurl4-nss-dev"
        },
        {
            "binary_version": "7.68.0-1ubuntu2.18",
            "binary_name": "libcurl4-openssl-dev"
        }
    ],
    "availability": "No subscription required"
}

Ubuntu:22.04:LTS / curl

Package

Name
curl
Purl
pkg:deb/ubuntu/curl@7.81.0-1ubuntu1.10?arch=source&distro=jammy

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
7.81.0-1ubuntu1.10

Affected versions

7.*

7.74.0-1.3ubuntu2
7.74.0-1.3ubuntu3
7.80.0-3
7.81.0-1
7.81.0-1ubuntu1.1
7.81.0-1ubuntu1.2
7.81.0-1ubuntu1.3
7.81.0-1ubuntu1.4
7.81.0-1ubuntu1.6
7.81.0-1ubuntu1.7
7.81.0-1ubuntu1.8

Ecosystem specific 

{
    "binaries": [
        {
            "binary_version": "7.81.0-1ubuntu1.10",
            "binary_name": "curl"
        },
        {
            "binary_version": "7.81.0-1ubuntu1.10",
            "binary_name": "libcurl3-gnutls"
        },
        {
            "binary_version": "7.81.0-1ubuntu1.10",
            "binary_name": "libcurl3-nss"
        },
        {
            "binary_version": "7.81.0-1ubuntu1.10",
            "binary_name": "libcurl4"
        },
        {
            "binary_version": "7.81.0-1ubuntu1.10",
            "binary_name": "libcurl4-gnutls-dev"
        },
        {
            "binary_version": "7.81.0-1ubuntu1.10",
            "binary_name": "libcurl4-nss-dev"
        },
        {
            "binary_version": "7.81.0-1ubuntu1.10",
            "binary_name": "libcurl4-openssl-dev"
        }
    ],
    "availability": "No subscription required"
}