CVE-2021-3756

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Source
https://cve.org/CVERecord?id=CVE-2021-3756
Import Source
https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2021-3756.json
JSON Data
https://api.test.osv.dev/v1/vulns/CVE-2021-3756
Downstream
Related
Published
2021-10-29T16:15:07Z
Modified
2026-08-18T14:06:00Z
Severity
  • 9.8 (Critical) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H CVSS Calculator
Summary
[none]
Details

libmysofa is vulnerable to Heap-based Buffer Overflow

Database specific 
{
    "unresolved_ranges":  [
        {
            "cpes":  [
                "cpe:2.3:o:fedoraproject:fedora:34:*:*:*:*:*:*:*",
                "cpe:2.3:o:fedoraproject:fedora:35:*:*:*:*:*:*:*"
            ],
            "extracted_events":  [
                {
                    "introduced":  "34"
                },
                {
                    "last_affected":  "34"
                },
                {
                    "introduced":  "35"
                },
                {
                    "last_affected":  "35"
                }
            ],
            "source":  "CPE_STRING",
            "vendor_product":  "fedoraproject:fedora"
        }
    ]
}
References

Affected packages

Git / github.com/hoene/libmysofa

Affected ranges

Type
GIT
Repo
https://github.com/hoene/libmysofa
Events
Introduced
0 Unknown introduced commit / All previous commits are affected
Fixed
8423749934bfc09121261694b1ccfba7e6d5c955
Fixed
890400ebd092c574707d0c132124f8ff047e20e1
Database specific
Show details 
{
    "cpe":  "cpe:2.3:a:symonics:libmysofa:*:*:*:*:*:*:*:*",
    "extracted_events":  [
        {
            "introduced":  "0"
        },
        {
            "fixed":  "1.2.1"
        }
    ],
    "source":  [
        "CPE_RANGE",
        "REFERENCES"
    ]
}

Affected versions

v0.*
v0.1
v0.2
v0.4
v0.4(Windows)
v0.5
v0.6
v0.7
v0.8
v0.9
v0.9.1
v1.*
v1.0
v1.1
v1.2

Database specific

source 
"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2021-3756.json"
vanir_signatures 
[
    {
        "deprecated":  false,
        "digest":  {
            "line_hashes":  [
                "244600815174416966585551841291712717397",
                "90543973782827171041303815195698778748",
                "73365424127951651928394975798515892895",
                "177621056667884904289185552349472775630",
                "187371343997902470181552116025032457317",
                "307673362603936601153742255487468041332",
                "317832962332053823589033881255471006245",
                "265513809528132384416103992166682713830",
                "111647921010230395044355286432373479076",
                "117712949535435723859259441420883765571",
                "4054312530996134748218050665896965235"
            ],
            "threshold":  0.9
        },
        "id":  "CVE-2021-3756-359a28bb",
        "signature_type":  "Line",
        "signature_version":  "v1",
        "source":  "https://github.com/hoene/libmysofa/commit/890400ebd092c574707d0c132124f8ff047e20e1",
        "target":  {
            "file":  "src/hdf/dataobject.c"
        }
    },
    {
        "deprecated":  false,
        "digest":  {
            "function_hash":  "46558948747989781028996614797325144881",
            "length":  2726
        },
        "id":  "CVE-2021-3756-6685c61c",
        "signature_type":  "Function",
        "signature_version":  "v1",
        "source":  "https://github.com/hoene/libmysofa/commit/890400ebd092c574707d0c132124f8ff047e20e1",
        "target":  {
            "file":  "src/hdf/dataobject.c",
            "function":  "readOHDRHeaderMessageDataLayout"
        }
    }
]
vanir_signatures_modified 
"2026-08-18T14:06:00Z"