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CVE search · CVE-2017-17805

CVE-2017-17805

high 7.8

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.

Open in the NVD CVE.org JSON

Details

Status
Modified
Published
Last changed
Source
cve@mitre.org
Weakness
CWE-20

Severity

VersionScoreVectorSource
CVSS 3.1 high 7.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H nvd@nist.govPrimary
CVSS 2.0 high 7.2 AV:L/AC:L/Au:N/C:C/I:C/A:C nvd@nist.govPrimary

Affected products

Vendor and product from the NVD’s CPE applicability statements. Versions and conditions are on the NVD’s page.

References