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01 Record

CVE-2019-1543

ChaCha20-Poly1305 with long nonces

UnratedPUBLISHEDCNA: openssl
CNA base scoreUnratedNo CNA CVSS vector

02 Description

ChaCha20-Poly1305 with long nonces

03 Exploitation and scoring

Exploitation
Not assessed. CISA has not published an exploitation assessment for this record, and it is not in the KEV catalog. That is an absence of assessment, not a finding of no risk.
SSVC decision
Not assessed by CISA
EPSS probability
5.70% probability of exploitation activity in the next 30 days.
EPSS percentile
Equal to or higher than the score of 92.6% of scored records. A rank, not a probability.
NVD base score
7.4 (CVSS v3.x), scored by the NVD independently of the CNA.
NVD CVSS vector
CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N
NVD analysis status
Modified. NVD last modified this record on 2026-06-17.
Red Hat severity
Low. Red Hat's rating for its own products, not a CVSS rating.

Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.

04 Metadata

Published
2019-03-06 21:00Z7 YR AGO
Last updated
2024-09-16 17:43Z2 YR AGO
Reserved
2018-11-28
Assigning CNA
openssl
Record state
PUBLISHED
Severity
Not rated by the issuing CNA
CNA CVSS vector
Not published by the issuing CNA
Weaknesses
  • CWE-327Use of a Broken or Risky Cryptographic AlgorithmClass
  • CWE-330Use of Insufficiently Random ValuesClass
  • CWE-323Reusing a Nonce, Key Pair in EncryptionBase
Data version
5.1
Document digest
ae52f44d24915533ef258c01195ff82aa5b4c328a161595199c8b88f14ea9b15

05 Affected products

VendorProductVersionsPlatforms
OpenSSLOpenSSLFixed in OpenSSL 1.1.1c (Affected 1.1.1-1.1.1b), Fixed in OpenSSL 1.1.0k (Affected 1.1.0-1.1.0j)—

06 References

07 Fixed in

Arch Linux

  • lib32-openssl
    Fixed in 1:1.1.1.c-1
  • openssl
    Fixed in 1.1.1.c-1

Source: Arch Linux Security Tracker, the Arch Linux security team. Reformatted by exploit.cc.

Debian 12

  • openssl
    Fixed in 1.1.1c-1

Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.

Debian 13

  • openssl
    Fixed in 1.1.1c-1

Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.

Debian 14

  • openssl
    Fixed in 1.1.1c-1

Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.

Ubuntu 18.04 LTS

  • openssl
    Fixed in 1.1.1-1ubuntu2.1~18.04.2

Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.

A release or ecosystem missing from this list has no record here. It may be unaffected or not covered by the source. Source notices and licences.