High severity7.8NVD Advisory· Published Dec 20, 2017· Updated May 13, 2026
CVE-2017-17805
CVE-2017-17805
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.
Patches
0No patches discovered yet.
Vulnerability mechanics
AI mechanics synthesis has not run for this CVE yet.
References
24- git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/nvdPatch
- github.com/torvalds/linux/commit/ecaaab5649781c5a0effdaf298a925063020500envdPatch
- lists.opensuse.org/opensuse-security-announce/2018-01/msg00006.htmlnvdThird Party Advisory
- lists.opensuse.org/opensuse-security-announce/2018-01/msg00007.htmlnvdThird Party Advisory
- lists.opensuse.org/opensuse-security-announce/2018-01/msg00008.htmlnvdThird Party Advisory
- lists.opensuse.org/opensuse-security-announce/2018-01/msg00014.htmlnvdThird Party Advisory
- lists.opensuse.org/opensuse-security-announce/2018-01/msg00016.htmlnvdThird Party Advisory
- www.securityfocus.com/bid/102291nvdThird Party AdvisoryVDB Entry
- access.redhat.com/errata/RHSA-2018:2948nvdThird Party Advisory
- access.redhat.com/errata/RHSA-2018:3083nvdThird Party Advisory
- access.redhat.com/errata/RHSA-2018:3096nvdThird Party Advisory
- access.redhat.com/errata/RHSA-2019:2473nvdThird Party Advisory
- lists.debian.org/debian-lts-announce/2018/01/msg00004.htmlnvdThird Party Advisory
- usn.ubuntu.com/3617-1/nvdThird Party Advisory
- usn.ubuntu.com/3617-2/nvdThird Party Advisory
- usn.ubuntu.com/3617-3/nvdThird Party Advisory
- usn.ubuntu.com/3619-1/nvdThird Party Advisory
- usn.ubuntu.com/3619-2/nvdThird Party Advisory
- usn.ubuntu.com/3620-1/nvdThird Party Advisory
- usn.ubuntu.com/3620-2/nvdThird Party Advisory
- usn.ubuntu.com/3632-1/nvdThird Party Advisory
- www.debian.org/security/2017/dsa-4073nvdThird Party Advisory
- www.debian.org/security/2018/dsa-4082nvdThird Party Advisory
- www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.14.8nvdIssue TrackingRelease Notes
News mentions
0No linked articles in our index yet.