CVE-2020-9274

An issue was discovered in Pure-FTPd 1.0.49. An uninitialized pointer vulnerability has been detected in the diraliases linked list. When the *lookupalias(const char alias) or printaliases(void) function is called, they fail to correctly detect the end of the linked list and try to access a non-existent list member. This is related to init_aliases in diraliases.c.

References

Affected packages

Git / github.com/jedisct1/pure-ftpd

Affected ranges

Type: GIT
Repo: https://github.com/jedisct1/pure-ftpd
Events: Introduced

0 Unknown introduced commit / All previous commits are affected

Fixed

8d0d42542e2cb7a56d645fbe4d0ef436e38bcefa

Affected versions

1.*

1.0.33

1.0.34

1.0.35

1.0.36

1.0.37

1.0.38

1.0.39

1.0.40

1.0.41

1.0.42

1.0.43

1.0.44

1.0.45

1.0.46

1.0.47

1.0.48

1.0.49

Database specific

vanir_signatures

[
    {
        "source": "https://github.com/jedisct1/pure-ftpd/commit/8d0d42542e2cb7a56d645fbe4d0ef436e38bcefa",
        "id": "CVE-2020-9274-4817218f",
        "deprecated": false,
        "signature_version": "v1",
        "target": {
            "file": "src/diraliases.c"
        },
        "digest": {
            "threshold": 0.9,
            "line_hashes": [
                "100207080916508580202372723916900216595",
                "215980660364558502349874527242322537352",
                "245421707797726720776815470716609767927",
                "94262688675984974272434036273383263737",
                "24523254683584298689154031952110136271",
                "339004118064621303234224528990699110630",
                "141824722244697334254164220584752278739",
                "230270262883428672407869935702932127102"
            ]
        },
        "signature_type": "Line"
    },
    {
        "source": "https://github.com/jedisct1/pure-ftpd/commit/8d0d42542e2cb7a56d645fbe4d0ef436e38bcefa",
        "id": "CVE-2020-9274-5a2a20bb",
        "deprecated": false,
        "signature_version": "v1",
        "target": {
            "function": "init_aliases",
            "file": "src/diraliases.c"
        },
        "digest": {
            "length": 1196.0,
            "function_hash": "118518986303841811066015673851572743280"
        },
        "signature_type": "Function"
    }
]