RUSTSEC-2019-0010 (CVE-2019-15552)
Vulnerability from osv_rustsec – Published: 2019-07-04 12:00 – Updated: 2023-06-13 13:10 – Source websiteAffected versions of libflate have set a field of an internal structure with a generic type to an uninitialized value in MultiDecoder::read() and reverted it to the original value after the function completed. However, execution of MultiDecoder::read() could be interrupted by a panic in caller-supplied Read implementation. This would cause drop() to be called on uninitialized memory of a generic type implementing Read.
This is equivalent to a use-after-free vulnerability and could allow an attacker to gain arbitrary code execution.
The flaw was corrected by aborting immediately instead of unwinding the stack in case of panic within MultiDecoder::read(). The issue was discovered and fixed by Shnatsel.
| URL | Type | |
|---|---|---|
{
"affected": [
{
"database_specific": {
"categories": [],
"cvss": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
"informational": null
},
"ecosystem_specific": {
"affected_functions": null,
"affects": {
"arch": [],
"functions": [
"libflate::gzip::MultiDecoder::read"
],
"os": []
}
},
"package": {
"ecosystem": "crates.io",
"name": "libflate",
"purl": "pkg:cargo/libflate"
},
"ranges": [
{
"events": [
{
"introduced": "0.1.14"
},
{
"fixed": "0.1.25"
}
],
"type": "SEMVER"
}
],
"versions": []
}
],
"aliases": [
"CVE-2019-15552",
"GHSA-rpcm-whqc-jfw8"
],
"database_specific": {
"license": "CC0-1.0"
},
"details": "Affected versions of libflate have set a field of an internal structure with a generic type to an uninitialized value in `MultiDecoder::read()` and reverted it to the original value after the function completed. However, execution of `MultiDecoder::read()` could be interrupted by a panic in caller-supplied `Read` implementation. This would cause `drop()` to be called on uninitialized memory of a generic type implementing `Read`.\n\nThis is equivalent to a use-after-free vulnerability and could allow an attacker to gain arbitrary code execution.\n\nThe flaw was corrected by aborting immediately instead of unwinding the stack in case of panic within `MultiDecoder::read()`. The issue was discovered and fixed by Shnatsel.",
"id": "RUSTSEC-2019-0010",
"modified": "2023-06-13T13:10:24Z",
"published": "2019-07-04T12:00:00Z",
"references": [
{
"type": "PACKAGE",
"url": "https://crates.io/crates/libflate"
},
{
"type": "ADVISORY",
"url": "https://rustsec.org/advisories/RUSTSEC-2019-0010.html"
},
{
"type": "REPORT",
"url": "https://github.com/sile/libflate/issues/35"
}
],
"related": [],
"severity": [
{
"score": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
"type": "CVSS_V3"
}
],
"summary": "MultiDecoder::read() drops uninitialized memory of arbitrary type on panic in client code"
}
Sightings
| Author | Source | Type | Date | Other |
|---|
Nomenclature
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