CVE-2018-20546

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Source
https://cve.org/CVERecord?id=CVE-2018-20546
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2018-20546.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2018-20546
Downstream
Related
Published
2018-12-28T16:29:04.893Z
Modified
2026-03-10T14:37:20.658456Z
Severity
  • 8.1 (High) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:H CVSS Calculator
Summary
[none]
Details

There is an illegal READ memory access at caca/dither.c (function getrgbadefault) in libcaca 0.99.beta19 for the default bpp case.

References

Affected packages

Git / github.com/cacalabs/libcaca

Affected ranges

Type
GIT
Repo
https://github.com/cacalabs/libcaca
Events
Introduced
0 Unknown introduced commit / All previous commits are affected
Last affected
caae67dce5d72ceceac79468bed47b58ea8e4a29
Fixed
1022d97496c7899e8641515af363381b31ae2f05
Database specific 
{
    "versions": [
        {
            "introduced": "0"
        },
        {
            "last_affected": "0.99-beta19"
        }
    ]
}

Affected versions

v0.*
v0.99.beta14
v0.99.beta15
v0.99.beta16
v0.99.beta17
v0.99.beta18
v0.99.beta19

Database specific

source 
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2018-20546.json"
vanir_signatures 
[
    {
        "deprecated": false,
        "signature_version": "v1",
        "digest": {
            "threshold": 0.9,
            "line_hashes": [
                "173697194705099104683245377240136433543",
                "127033609259635894559715003375059074023",
                "249858520968027005030518387805073278911",
                "278457499550985249528788813404705222476",
                "26662475878361700816840939041688976160"
            ]
        },
        "source": "https://github.com/cacalabs/libcaca/commit/1022d97496c7899e8641515af363381b31ae2f05",
        "signature_type": "Line",
        "id": "CVE-2018-20546-16db8665",
        "target": {
            "file": "caca/dither.c"
        }
    }
]
unresolved_ranges 
[
    {
        "events": [
            {
                "introduced": "0"
            },
            {
                "last_affected": "12.04"
            }
        ]
    },
    {
        "events": [
            {
                "introduced": "0"
            },
            {
                "last_affected": "14.04"
            }
        ]
    },
    {
        "events": [
            {
                "introduced": "0"
            },
            {
                "last_affected": "16.04"
            }
        ]
    },
    {
        "events": [
            {
                "introduced": "0"
            },
            {
                "last_affected": "18.04"
            }
        ]
    },
    {
        "events": [
            {
                "introduced": "0"
            },
            {
                "last_affected": "18.10"
            }
        ]
    },
    {
        "events": [
            {
                "introduced": "0"
            },
            {
                "last_affected": "34"
            }
        ]
    },
    {
        "events": [
            {
                "introduced": "0"
            },
            {
                "last_affected": "35"
            }
        ]
    },
    {
        "events": [
            {
                "introduced": "0"
            },
            {
                "last_affected": "36"
            }
        ]
    },
    {
        "events": [
            {
                "introduced": "0"
            },
            {
                "last_affected": "8.0"
            }
        ]
    },
    {
        "events": [
            {
                "introduced": "0"
            },
            {
                "last_affected": "15.0"
            }
        ]
    }
]