CVE-2017-6420

The wwunpack function in libclamav/wwunpack.c in ClamAV 0.99.2 allows remote attackers to cause a denial of service (use-after-free) via a crafted PE file with WWPack compression.

References

Affected packages

Git / github.com/cisco-talos/clamav

Affected ranges

Type: GIT
Repo: https://github.com/cisco-talos/clamav
Events: Introduced

0 Unknown introduced commit / All previous commits are affected

Fixed

dfc00cd3301a42b571454b51a6102eecf58407bc

Affected versions

clamav-0.*

clamav-0.96

clamav-0.96.2

clamav-0.96.3

clamav-0.96.4

clamav-0.96.5

clamav-0.96rc1

clamav-0.96rc2

clamav-0.97

clamav-0.97rc

clamav-0.98-dmgxar

clamav-0.99-beta1

Other

merge-llvm-79908

merge-llvm-80601

merge-llvm-83242

merge-llvm-90002

merge-llvm-91214

merge-llvm-91428

merge-llvm-92222

merge-llvm-94539

merge-llvm-97877

r5076

Database specific

{
    "vanir_signatures": [
        {
            "digest": {
                "length": 3832.0,
                "function_hash": "139298605883294768074466177189333198170"
            },
            "target": {
                "function": "wwunpack",
                "file": "libclamav/wwunpack.c"
            },
            "signature_type": "Function",
            "source": "https://github.com/cisco-talos/clamav/commit/dfc00cd3301a42b571454b51a6102eecf58407bc",
            "deprecated": false,
            "signature_version": "v1",
            "id": "CVE-2017-6420-8db5ad48"
        },
        {
            "digest": {
                "line_hashes": [
                    "35527508808006729459757378903195264297",
                    "136599601490254595440116583910458001390",
                    "213343516002541788284701737169634229176",
                    "38984029225980571671566102348353921465"
                ],
                "threshold": 0.9
            },
            "target": {
                "file": "libclamav/wwunpack.c"
            },
            "signature_type": "Line",
            "source": "https://github.com/cisco-talos/clamav/commit/dfc00cd3301a42b571454b51a6102eecf58407bc",
            "deprecated": false,
            "signature_version": "v1",
            "id": "CVE-2017-6420-c120f9f5"
        }
    ]
}