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
Impacted products
n/an/a
Show details on NVD website

To clipboard 

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    "nvd": "{\"cve\":{\"id\":\"CVE-2017-17805\",\"sourceIdentifier\":\"cve@mitre.org\",\"published\":\"2017-12-20T23:29:00.327\",\"lastModified\":\"2023-01-19T15:45:33.937\",\"vulnStatus\":\"Analyzed\",\"descriptions\":[{\"lang\":\"en\",\"value\":\"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.\"},{\"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 vulnerables.\"}],\"metrics\":{\"cvssMetricV31\":[{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"cvssData\":{\"version\":\"3.1\",\"vectorString\":\"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H\",\"attackVector\":\"LOCAL\",\"attackComplexity\":\"LOW\",\"privilegesRequired\":\"LOW\",\"userInteraction\":\"NONE\",\"scope\":\"UNCHANGED\",\"confidentialityImpact\":\"HIGH\",\"integrityImpact\":\"HIGH\",\"availabilityImpact\":\"HIGH\",\"baseScore\":7.8,\"baseSeverity\":\"HIGH\"},\"exploitabilityScore\":1.8,\"impactScore\":5.9}],\"cvssMetricV2\":[{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"cvssData\":{\"version\":\"2.0\",\"vectorString\":\"AV:L/AC:L/Au:N/C:C/I:C/A:C\",\"accessVector\":\"LOCAL\",\"accessComplexity\":\"LOW\",\"authentication\":\"NONE\",\"confidentialityImpact\":\"COMPLETE\",\"integrityImpact\":\"COMPLETE\",\"availabilityImpact\":\"COMPLETE\",\"baseScore\":7.2},\"baseSeverity\":\"HIGH\",\"exploitabilityScore\":3.9,\"impactScore\":10.0,\"acInsufInfo\":false,\"obtainAllPrivilege\":false,\"obtainUserPrivilege\":false,\"obtainOtherPrivilege\":false,\"userInteractionRequired\":false}]},\"weaknesses\":[{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"description\":[{\"lang\":\"en\",\"value\":\"CWE-20\"}]}],\"configurations\":[{\"nodes\":[{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"2.6.25\",\"versionEndExcluding\":\"3.2.97\",\"matchCriteriaId\":\"9C38EF6C-BEB1-4C3B-965F-1BA7A9E0F84C\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"3.3\",\"versionEndExcluding\":\"3.16.52\",\"matchCriteriaId\":\"B97C01AC-F470-4190-AC38-30DE3DFDCCAC\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"3.17\",\"versionEndExcluding\":\"3.18.89\",\"matchCriteriaId\":\"BBA93779-9E2C-4161-9DC3-569588ECB754\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"3.19\",\"versionEndExcluding\":\"4.1.49\",\"matchCriteriaId\":\"F3C1F309-D954-4BB7-AC02-30FC58BE76F9\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"4.2\",\"versionEndExcluding\":\"4.4.107\",\"matchCriteriaId\":\"EEE9C869-86BF-4DBF-8EBB-FC14AD5A7019\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"4.5\",\"versionEndExcluding\":\"4.9.71\",\"matchCriteriaId\":\"A25E81B4-C400-4932-8841-3116C21DF3DF\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"4.10\",\"versionEndExcluding\":\"4.14.8\",\"matchCriteriaId\":\"342F6BB8-126D-4E05-915F-4CDC362F5C51\"}]}]},{\"nodes\":[{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"C11E6FB0-C8C0-4527-9AA0-CB9B316F8F43\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"DEECE5FC-CACF-4496-A3E7-164736409252\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:opensuse:leap:42.2:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"1EA337A3-B9A3-4962-B8BD-8E0C7C5B28EB\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:opensuse_project:leap:42.3:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"D8CD4569-8BFA-4654-9CAB-2882D4CAE57D\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:suse:linux_enterprise_desktop:12:sp2:*:*:*:*:*:*\",\"matchCriteriaId\":\"57CFAD92-EECD-417D-ADDB-8178C320B204\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:suse:linux_enterprise_desktop:12:sp3:*:*:*:*:*:*\",\"matchCriteriaId\":\"C1DCD75C-9775-4922-8A44-C4707C640946\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:suse:linux_enterprise_server:11:extra:*:*:*:*:*:*\",\"matchCriteriaId\":\"AD1AEFA5-9D43-4DD2-9088-7B37D5F220C4\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:suse:linux_enterprise_server:11:sp4:*:*:*:*:*:*\",\"matchCriteriaId\":\"55C5561F-BE86-4EEA-99D4-8697F8BD9DFE\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:suse:linux_enterprise_server:12:sp2:*:*:*:*:*:*\",\"matchCriteriaId\":\"F84B2729-7B52-4505-9656-1BD31B980705\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:suse:linux_enterprise_server:12:sp3:*:*:*:*:*:*\",\"matchCriteriaId\":\"631BB7F0-5F27-4244-8E72-428DA824C75B\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:suse:linux_enterprise_server_for_raspberry_pi:12:sp2:*:*:*:*:*:*\",\"matchCriteriaId\":\"4605D055-EA6E-4C90-9277-AC067E1BD02D\"}]}]},{\"nodes\":[{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:canonical:ubuntu_linux:12.04:*:*:*:-:*:*:*\",\"matchCriteriaId\":\"CB66DB75-2B16-4EBF-9B93-CE49D8086E41\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:canonical:ubuntu_linux:14.04:*:*:*:esm:*:*:*\",\"matchCriteriaId\":\"815D70A8-47D3-459C-A32C-9FEACA0659D1\"},{\"vulne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}


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