OESA-2023-1762

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Source
https://www.openeuler.org/en/security/security-bulletins/detail/?id=openEuler-SA-2023-1762
Import Source
https://repo.openeuler.org/security/data/osv/OESA-2023-1762.json
JSON Data
https://api.osv.dev/v1/vulns/OESA-2023-1762
Upstream
Published
2023-10-23T11:06:10Z
Modified
2025-09-03T06:19:20.273395Z
Summary
curl security update
Details

cURL is a computer software project providing a library (libcurl) and command-line tool (curl) for transferring data using various protocols.

Security Fix(es):

This flaw makes curl overflow a heap based buffer in the SOCKS5 proxy handshake.

When curl is asked to pass along the host name to the SOCKS5 proxy to allow that to resolve the address instead of it getting done by curl itself, the maximum length that host name can be is 255 bytes.

If the host name is detected to be longer, curl switches to local name resolving and instead passes on the resolved address only. Due to this bug, the local variable that means "let the host resolve the name" could get the wrong value during a slow SOCKS5 handshake, and contrary to the intention, copy the too long host name to the target buffer instead of copying just the resolved address there.

The target buffer being a heap based buffer, and the host name coming from the URL that curl has been told to operate with. (CVE-2023-38545)

This flaw allows an attacker to insert cookies at will into a running program using libcurl, if the specific series of conditions are met.

libcurl performs transfers. In its API, an application creates "easy handles" that are the individual handles for single transfers.

libcurl provides a function call that duplicates en easy handle called curleasyduphandle.

If a transfer has cookies enabled when the handle is duplicated, the cookie-enable state is also cloned - but without cloning the actual cookies. If the source handle did not read any cookies from a specific file on disk, the cloned version of the handle would instead store the file name as none (using the four ASCII letters, no quotes).

Subsequent use of the cloned handle that does not explicitly set a source to load cookies from would then inadvertently load cookies from a file named none - if such a file exists and is readable in the current directory of the program using libcurl. And if using the correct file format of course. (CVE-2023-38546)

Database specific 
{
    "severity": "High"
}
References

Affected packages

openEuler:20.03-LTS-SP1 / curl

Package

Name
curl
Purl
pkg:rpm/openEuler/curl&distro=openEuler-20.03-LTS-SP1

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
7.71.1-31.oe1

Ecosystem specific 

{
    "noarch": [
        "curl-help-7.71.1-31.oe1.noarch.rpm"
    ],
    "src": [
        "curl-7.71.1-31.oe1.src.rpm"
    ],
    "aarch64": [
        "curl-debuginfo-7.71.1-31.oe1.aarch64.rpm",
        "libcurl-7.71.1-31.oe1.aarch64.rpm",
        "libcurl-devel-7.71.1-31.oe1.aarch64.rpm",
        "curl-7.71.1-31.oe1.aarch64.rpm",
        "curl-debugsource-7.71.1-31.oe1.aarch64.rpm"
    ],
    "x86_64": [
        "curl-7.71.1-31.oe1.x86_64.rpm",
        "libcurl-7.71.1-31.oe1.x86_64.rpm",
        "curl-debugsource-7.71.1-31.oe1.x86_64.rpm",
        "libcurl-devel-7.71.1-31.oe1.x86_64.rpm",
        "curl-debuginfo-7.71.1-31.oe1.x86_64.rpm"
    ]
}

openEuler:20.03-LTS-SP3 / curl

Package

Name
curl
Purl
pkg:rpm/openEuler/curl&distro=openEuler-20.03-LTS-SP3

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
7.71.1-31.oe1

Ecosystem specific 

{
    "noarch": [
        "curl-help-7.71.1-31.oe1.noarch.rpm"
    ],
    "src": [
        "curl-7.71.1-31.oe1.src.rpm"
    ],
    "aarch64": [
        "curl-7.71.1-31.oe1.aarch64.rpm",
        "libcurl-7.71.1-31.oe1.aarch64.rpm",
        "libcurl-devel-7.71.1-31.oe1.aarch64.rpm",
        "curl-debuginfo-7.71.1-31.oe1.aarch64.rpm",
        "curl-debugsource-7.71.1-31.oe1.aarch64.rpm"
    ],
    "x86_64": [
        "curl-debuginfo-7.71.1-31.oe1.x86_64.rpm",
        "curl-debugsource-7.71.1-31.oe1.x86_64.rpm",
        "curl-7.71.1-31.oe1.x86_64.rpm",
        "libcurl-7.71.1-31.oe1.x86_64.rpm",
        "libcurl-devel-7.71.1-31.oe1.x86_64.rpm"
    ]
}

openEuler:22.03-LTS / curl

Package

Name
curl
Purl
pkg:rpm/openEuler/curl&distro=openEuler-22.03-LTS

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
7.79.1-24.oe2203sp2

Ecosystem specific 

{
    "noarch": [
        "curl-help-7.79.1-24.oe2203.noarch.rpm",
        "curl-help-7.79.1-24.oe2203sp1.noarch.rpm",
        "curl-help-7.79.1-24.oe2203sp2.noarch.rpm"
    ],
    "src": [
        "curl-7.79.1-24.oe2203.src.rpm",
        "curl-7.79.1-24.oe2203sp1.src.rpm",
        "curl-7.79.1-24.oe2203sp2.src.rpm"
    ],
    "aarch64": [
        "curl-7.79.1-24.oe2203.aarch64.rpm",
        "curl-debuginfo-7.79.1-24.oe2203.aarch64.rpm",
        "libcurl-devel-7.79.1-24.oe2203.aarch64.rpm",
        "libcurl-7.79.1-24.oe2203.aarch64.rpm",
        "curl-debugsource-7.79.1-24.oe2203.aarch64.rpm",
        "curl-debuginfo-7.79.1-24.oe2203sp1.aarch64.rpm",
        "libcurl-devel-7.79.1-24.oe2203sp1.aarch64.rpm",
        "libcurl-7.79.1-24.oe2203sp1.aarch64.rpm",
        "curl-debugsource-7.79.1-24.oe2203sp1.aarch64.rpm",
        "curl-7.79.1-24.oe2203sp1.aarch64.rpm",
        "curl-debuginfo-7.79.1-24.oe2203sp2.aarch64.rpm",
        "curl-7.79.1-24.oe2203sp2.aarch64.rpm",
        "libcurl-7.79.1-24.oe2203sp2.aarch64.rpm",
        "curl-debugsource-7.79.1-24.oe2203sp2.aarch64.rpm",
        "libcurl-devel-7.79.1-24.oe2203sp2.aarch64.rpm"
    ],
    "x86_64": [
        "curl-debuginfo-7.79.1-24.oe2203.x86_64.rpm",
        "libcurl-devel-7.79.1-24.oe2203.x86_64.rpm",
        "curl-debugsource-7.79.1-24.oe2203.x86_64.rpm",
        "curl-7.79.1-24.oe2203.x86_64.rpm",
        "libcurl-7.79.1-24.oe2203.x86_64.rpm",
        "libcurl-devel-7.79.1-24.oe2203sp1.x86_64.rpm",
        "curl-7.79.1-24.oe2203sp1.x86_64.rpm",
        "libcurl-7.79.1-24.oe2203sp1.x86_64.rpm",
        "curl-debuginfo-7.79.1-24.oe2203sp1.x86_64.rpm",
        "curl-debugsource-7.79.1-24.oe2203sp1.x86_64.rpm",
        "curl-7.79.1-24.oe2203sp2.x86_64.rpm",
        "libcurl-devel-7.79.1-24.oe2203sp2.x86_64.rpm",
        "libcurl-7.79.1-24.oe2203sp2.x86_64.rpm",
        "curl-debugsource-7.79.1-24.oe2203sp2.x86_64.rpm",
        "curl-debuginfo-7.79.1-24.oe2203sp2.x86_64.rpm"
    ]
}

openEuler:22.03-LTS-SP1 / curl

Package

Name
curl
Purl
pkg:rpm/openEuler/curl&distro=openEuler-22.03-LTS-SP1

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
7.79.1-24.oe2203sp1

Ecosystem specific 

{
    "noarch": [
        "curl-help-7.79.1-24.oe2203sp1.noarch.rpm"
    ],
    "src": [
        "curl-7.79.1-24.oe2203sp1.src.rpm"
    ],
    "aarch64": [
        "curl-debuginfo-7.79.1-24.oe2203sp1.aarch64.rpm",
        "libcurl-devel-7.79.1-24.oe2203sp1.aarch64.rpm",
        "libcurl-7.79.1-24.oe2203sp1.aarch64.rpm",
        "curl-debugsource-7.79.1-24.oe2203sp1.aarch64.rpm",
        "curl-7.79.1-24.oe2203sp1.aarch64.rpm"
    ],
    "x86_64": [
        "libcurl-devel-7.79.1-24.oe2203sp1.x86_64.rpm",
        "curl-7.79.1-24.oe2203sp1.x86_64.rpm",
        "libcurl-7.79.1-24.oe2203sp1.x86_64.rpm",
        "curl-debuginfo-7.79.1-24.oe2203sp1.x86_64.rpm",
        "curl-debugsource-7.79.1-24.oe2203sp1.x86_64.rpm"
    ]
}

openEuler:22.03-LTS-SP2 / curl

Package

Name
curl
Purl
pkg:rpm/openEuler/curl&distro=openEuler-22.03-LTS-SP2

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
7.79.1-24.oe2203sp2

Ecosystem specific 

{
    "noarch": [
        "curl-help-7.79.1-24.oe2203sp2.noarch.rpm"
    ],
    "src": [
        "curl-7.79.1-24.oe2203sp2.src.rpm"
    ],
    "aarch64": [
        "curl-debuginfo-7.79.1-24.oe2203sp2.aarch64.rpm",
        "curl-7.79.1-24.oe2203sp2.aarch64.rpm",
        "libcurl-7.79.1-24.oe2203sp2.aarch64.rpm",
        "curl-debugsource-7.79.1-24.oe2203sp2.aarch64.rpm",
        "libcurl-devel-7.79.1-24.oe2203sp2.aarch64.rpm"
    ],
    "x86_64": [
        "curl-7.79.1-24.oe2203sp2.x86_64.rpm",
        "libcurl-devel-7.79.1-24.oe2203sp2.x86_64.rpm",
        "libcurl-7.79.1-24.oe2203sp2.x86_64.rpm",
        "curl-debugsource-7.79.1-24.oe2203sp2.x86_64.rpm",
        "curl-debuginfo-7.79.1-24.oe2203sp2.x86_64.rpm"
    ]
}