ghsa-h6gr-h9qh-f94v
Vulnerability from github
Published
2022-05-14 02:03
Modified
2022-05-14 02:03
Severity ?
7.8 (High) - CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Details

The Salsa20 encryption algorithm in the Linux kernel before 4.14.8 does not correctly handle zero-length inputs, allowing a local attacker able to use the AF_ALG-based skcipher interface (CONFIG_CRYPTO_USER_API_SKCIPHER) to cause a denial of service (uninitialized-memory free and kernel crash) or have unspecified other impact by executing a crafted sequence of system calls that use the blkcipher_walk API. Both the generic implementation (crypto/salsa20_generic.c) and x86 implementation (arch/x86/crypto/salsa20_glue.c) of Salsa20 were vulnerable.

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{
  "affected": [],
  "aliases": [
    "CVE-2017-17805"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-20"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2017-12-20T23:29:00Z",
    "severity": "HIGH"
  },
  "details": "The Salsa20 encryption algorithm in the Linux kernel before 4.14.8 does not correctly handle zero-length inputs, allowing a local attacker able to use the AF_ALG-based skcipher interface (CONFIG_CRYPTO_USER_API_SKCIPHER) to cause a denial of service (uninitialized-memory free and kernel crash) or have unspecified other impact by executing a crafted sequence of system calls that use the blkcipher_walk API. Both the generic implementation (crypto/salsa20_generic.c) and x86 implementation (arch/x86/crypto/salsa20_glue.c) of Salsa20 were vulnerable.",
  "id": "GHSA-h6gr-h9qh-f94v",
  "modified": "2022-05-14T02:03:25Z",
  "published": "2022-05-14T02:03:25Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2017-17805"
    },
    {
      "type": "WEB",
      "url": "https://github.com/torvalds/linux/commit/ecaaab5649781c5a0effdaf298a925063020500e"
    },
    {
      "type": "WEB",
      "url": "https://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.14.8"
    },
    {
      "type": "WEB",
      "url": "https://www.debian.org/security/2018/dsa-4082"
    },
    {
      "type": "WEB",
      "url": "https://www.debian.org/security/2017/dsa-4073"
    },
    {
      "type": "WEB",
      "url": "https://usn.ubuntu.com/3632-1"
    },
    {
      "type": "WEB",
      "url": "https://usn.ubuntu.com/3620-2"
    },
    {
      "type": "WEB",
      "url": "https://usn.ubuntu.com/3620-1"
    },
    {
      "type": "WEB",
      "url": "https://usn.ubuntu.com/3619-2"
    },
    {
      "type": "WEB",
      "url": "https://usn.ubuntu.com/3619-1"
    },
    {
      "type": "WEB",
      "url": "https://usn.ubuntu.com/3617-3"
    },
    {
      "type": "WEB",
      "url": "https://usn.ubuntu.com/3617-2"
    },
    {
      "type": "WEB",
      "url": "https://usn.ubuntu.com/3617-1"
    },
    {
      "type": "WEB",
      "url": "https://lists.debian.org/debian-lts-announce/2018/01/msg00004.html"
    },
    {
      "type": "WEB",
      "url": "https://access.redhat.com/errata/RHSA-2019:2473"
    },
    {
      "type": "WEB",
      "url": "https://access.redhat.com/errata/RHSA-2018:3096"
    },
    {
      "type": "WEB",
      "url": "https://access.redhat.com/errata/RHSA-2018:3083"
    },
    {
      "type": "WEB",
      "url": "https://access.redhat.com/errata/RHSA-2018:2948"
    },
    {
      "type": "WEB",
      "url": "http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=ecaaab5649781c5a0effdaf298a925063020500e"
    },
    {
      "type": "WEB",
      "url": "http://lists.opensuse.org/opensuse-security-announce/2018-01/msg00006.html"
    },
    {
      "type": "WEB",
      "url": "http://lists.opensuse.org/opensuse-security-announce/2018-01/msg00007.html"
    },
    {
      "type": "WEB",
      "url": "http://lists.opensuse.org/opensuse-security-announce/2018-01/msg00008.html"
    },
    {
      "type": "WEB",
      "url": "http://lists.opensuse.org/opensuse-security-announce/2018-01/msg00014.html"
    },
    {
      "type": "WEB",
      "url": "http://lists.opensuse.org/opensuse-security-announce/2018-01/msg00016.html"
    },
    {
      "type": "WEB",
      "url": "http://www.securityfocus.com/bid/102291"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    }
  ]
}


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