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Oracle Linux: (CVE-2017-17805) (Multiple Advisories): kernel security and bug fix update

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Oracle Linux: (CVE-2017-17805) (Multiple Advisories): kernel security and bug fix update

Severity
7
CVSS
(AV:L/AC:L/Au:N/C:C/I:C/A:C)
Published
12/20/2017
Created
03/19/2019
Added
11/06/2018
Modified
08/11/2023

Description

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.

Solution(s)

  • oracle-linux-upgrade-dtrace-modules
  • oracle-linux-upgrade-kernel
  • oracle-linux-upgrade-kernel-uek
  • oracle-linux-upgrade-kernel-uek-debug
  • oracle-linux-upgrade-kernel-uek-debug-devel
  • oracle-linux-upgrade-kernel-uek-devel
  • oracle-linux-upgrade-kernel-uek-doc
  • oracle-linux-upgrade-kernel-uek-firmware

References

  • ELSA-2019-2473
  • DSA-4073
  • DSA-4082
  • USN-3617-1
  • USN-3617-2
  • USN-3617-3
  • USN-3619-1
  • USN-3619-2
  • USN-3620-1
  • USN-3620-2
  • USN-3632-1
  • CVE-2017-17805
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