cve-2017-17805
Vulnerability from cvelistv5
Published
2017-12-20 23:00
Modified
2024-08-05 20:59
Severity ?
Summary
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.
References
cve@mitre.orghttp://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=ecaaab5649781c5a0effdaf298a925063020500ePatch
cve@mitre.orghttp://lists.opensuse.org/opensuse-security-announce/2018-01/msg00006.htmlThird Party Advisory
cve@mitre.orghttp://lists.opensuse.org/opensuse-security-announce/2018-01/msg00007.htmlThird Party Advisory
cve@mitre.orghttp://lists.opensuse.org/opensuse-security-announce/2018-01/msg00008.htmlThird Party Advisory
cve@mitre.orghttp://lists.opensuse.org/opensuse-security-announce/2018-01/msg00014.htmlThird Party Advisory
cve@mitre.orghttp://lists.opensuse.org/opensuse-security-announce/2018-01/msg00016.htmlThird Party Advisory
cve@mitre.orghttp://www.securityfocus.com/bid/102291Third Party Advisory, VDB Entry
cve@mitre.orghttps://access.redhat.com/errata/RHSA-2018:2948Third Party Advisory
cve@mitre.orghttps://access.redhat.com/errata/RHSA-2018:3083Third Party Advisory
cve@mitre.orghttps://access.redhat.com/errata/RHSA-2018:3096Third Party Advisory
cve@mitre.orghttps://access.redhat.com/errata/RHSA-2019:2473Third Party Advisory
cve@mitre.orghttps://github.com/torvalds/linux/commit/ecaaab5649781c5a0effdaf298a925063020500ePatch
cve@mitre.orghttps://lists.debian.org/debian-lts-announce/2018/01/msg00004.htmlThird Party Advisory
cve@mitre.orghttps://usn.ubuntu.com/3617-1/Third Party Advisory
cve@mitre.orghttps://usn.ubuntu.com/3617-2/Third Party Advisory
cve@mitre.orghttps://usn.ubuntu.com/3617-3/Third Party Advisory
cve@mitre.orghttps://usn.ubuntu.com/3619-1/Third Party Advisory
cve@mitre.orghttps://usn.ubuntu.com/3619-2/Third Party Advisory
cve@mitre.orghttps://usn.ubuntu.com/3620-1/Third Party Advisory
cve@mitre.orghttps://usn.ubuntu.com/3620-2/Third Party Advisory
cve@mitre.orghttps://usn.ubuntu.com/3632-1/Third Party Advisory
cve@mitre.orghttps://www.debian.org/security/2017/dsa-4073Third Party Advisory
cve@mitre.orghttps://www.debian.org/security/2018/dsa-4082Third Party Advisory
cve@mitre.orghttps://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.14.8Issue Tracking, Release Notes
af854a3a-2127-422b-91ae-364da2661108http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=ecaaab5649781c5a0effdaf298a925063020500ePatch
af854a3a-2127-422b-91ae-364da2661108http://lists.opensuse.org/opensuse-security-announce/2018-01/msg00006.htmlThird Party Advisory
af854a3a-2127-422b-91ae-364da2661108http://lists.opensuse.org/opensuse-security-announce/2018-01/msg00007.htmlThird Party Advisory
af854a3a-2127-422b-91ae-364da2661108http://lists.opensuse.org/opensuse-security-announce/2018-01/msg00008.htmlThird Party Advisory
af854a3a-2127-422b-91ae-364da2661108http://lists.opensuse.org/opensuse-security-announce/2018-01/msg00014.htmlThird Party Advisory
af854a3a-2127-422b-91ae-364da2661108http://lists.opensuse.org/opensuse-security-announce/2018-01/msg00016.htmlThird Party Advisory
af854a3a-2127-422b-91ae-364da2661108http://www.securityfocus.com/bid/102291Third Party Advisory, VDB Entry
af854a3a-2127-422b-91ae-364da2661108https://access.redhat.com/errata/RHSA-2018:2948Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://access.redhat.com/errata/RHSA-2018:3083Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://access.redhat.com/errata/RHSA-2018:3096Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://access.redhat.com/errata/RHSA-2019:2473Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://github.com/torvalds/linux/commit/ecaaab5649781c5a0effdaf298a925063020500ePatch
af854a3a-2127-422b-91ae-364da2661108https://lists.debian.org/debian-lts-announce/2018/01/msg00004.htmlThird Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://usn.ubuntu.com/3617-1/Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://usn.ubuntu.com/3617-2/Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://usn.ubuntu.com/3617-3/Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://usn.ubuntu.com/3619-1/Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://usn.ubuntu.com/3619-2/Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://usn.ubuntu.com/3620-1/Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://usn.ubuntu.com/3620-2/Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://usn.ubuntu.com/3632-1/Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://www.debian.org/security/2017/dsa-4073Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://www.debian.org/security/2018/dsa-4082Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.14.8Issue Tracking, Release Notes
Impacted products
Vendor Product Version
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  "cveMetadata": {
    "assignerOrgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca",
    "assignerShortName": "mitre",
    "cveId": "CVE-2017-17805",
    "datePublished": "2017-12-20T23:00:00",
    "dateReserved": "2017-12-20T00:00:00",
    "dateUpdated": "2024-08-05T20:59:17.879Z",
    "state": "PUBLISHED"
  },
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Both the generic implementation (crypto/salsa20_generic.c) and x86 implementation (arch/x86/crypto/salsa20_glue.c) of Salsa20 were vulnerable.\"},{\"lang\":\"es\",\"value\":\"El algoritmo de cifrado Salsa20 en el kernel de Linux en versiones anteriores a la 4.14.8 no maneja correctamente las entradas de longitud cero, lo que permite a un atacante local capaz de utilizar la interfaz skcipher basada en AF_ALG (CONFIG_CRYPTO_USER_API_SKCIPHER) provocar una denegaci\u00f3n de servicio (liberaci\u00f3n de memoria no inicializada y fallo del kernel) o provocar otro impacto no especificado ejecutando una secuencia manipulada de llamadas al sistema que utilizan la API blkcipher_walk. Tanto la implementaci\u00f3n gen\u00e9rica (crypto/salsa20_generic.c) como la implementaci\u00f3n x86 (arch/x86/crypto/salsa20_glue.c) de Salsa20 eran 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  }
}


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