CURL-CVE-2018-1000121

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Source
https://curl.se/docs/CVE-2018-1000121.html
Import Source
https://curl.se/docs/CURL-CVE-2018-1000121.json
JSON Data
https://api.osv.dev/v1/vulns/CURL-CVE-2018-1000121
Aliases
Published
2018-03-14T08:00:00Z
Modified
2024-01-25T02:42:48.061005Z
Summary
LDAP NULL pointer dereference
Details

curl might dereference a near-NULL address when getting an LDAP URL.

The function ldap_get_attribute_ber() is called to get attributes, but it turns out that it can return LDAP_SUCCESS and still return a NULL pointer in the result pointer when getting a particularly crafted response. This was a surprise to us and to the code.

libcurl-using applications that allow LDAP URLs, or that allow redirects to LDAP URLs could be made to crash by a malicious server.

Database specific 
{
    "URL": "https://curl.se/docs/CVE-2018-1000121.json",
    "last_affected": "7.58.0",
    "affects": "both",
    "www": "https://curl.se/docs/CVE-2018-1000121.html",
    "severity": "Low",
    "CWE": {
        "id": "CWE-476",
        "desc": "NULL Pointer Dereference"
    },
    "package": "curl"
}
References
Credits
    • Dario Weisser - FINDER
    • Daniel Stenberg - REMEDIATION_DEVELOPER

Affected packages

Git / github.com/curl/curl.git

Affected ranges

Type
SEMVER
Events
Introduced
7.21.0
Fixed
7.59.0
Type
GIT
Repo
https://github.com/curl/curl.git
Events
Introduced
2e056353b00d0944bdb2f8e948cc40a4dc0f3dfb
Fixed
9889db043393092e9d4b5a42720bba0b3d58deba

Affected versions

7.*

7.21.0
7.21.1
7.21.2
7.21.3
7.21.4
7.21.5
7.21.6
7.21.7
7.22.0
7.23.0
7.23.1
7.24.0
7.25.0
7.26.0
7.27.0
7.28.0
7.28.1
7.29.0
7.30.0
7.31.0
7.32.0
7.33.0
7.34.0
7.35.0
7.36.0
7.37.0
7.37.1
7.38.0
7.39.0
7.40.0
7.41.0
7.42.0
7.42.1
7.43.0
7.44.0
7.45.0
7.46.0
7.47.0
7.47.1
7.48.0
7.49.0
7.49.1
7.50.0
7.50.1
7.50.2
7.50.3
7.51.0
7.52.0
7.52.1
7.53.0
7.53.1
7.54.0
7.54.1
7.55.0
7.55.1
7.56.0
7.56.1
7.57.0
7.58.0

Database specific

vanir_signatures

[
    {
        "source": "https://github.com/curl/curl.git/commit/9889db043393092e9d4b5a42720bba0b3d58deba",
        "signature_version": "v1",
        "deprecated": false,
        "target": {
            "function": "ldap_recv",
            "file": "lib/openldap.c"
        },
        "id": "CURL-CVE-2018-1000121-ab1e9bb3",
        "signature_type": "Function",
        "digest": {
            "length": 4592.0,
            "function_hash": "328887416578178214306654622421626785268"
        }
    },
    {
        "source": "https://github.com/curl/curl.git/commit/9889db043393092e9d4b5a42720bba0b3d58deba",
        "signature_version": "v1",
        "deprecated": false,
        "target": {
            "file": "lib/openldap.c"
        },
        "id": "CURL-CVE-2018-1000121-e2a14c76",
        "signature_type": "Line",
        "digest": {
            "threshold": 0.9,
            "line_hashes": [
                "66058308195053059303831184805157800240",
                "208522381284363225235985548495567561267",
                "180384795194571577937512636606419807899",
                "116950588264124085603154233862740494801",
                "318624911198468198367229108116250639555",
                "238016220396618899894483569339603354701",
                "36496125730363765297620715070526551016",
                "95658113234756168716412665952919080209",
                "187721295413051310410400220050223779294",
                "266033551554067307004414137609620697488"
            ]
        }
    }
]