Detections
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Alpine: openssl1.1-compat: security update to 1.1.1b-r1
high Tenable Self-Hosted Container Security Plugin ID 406139
Description
There are packages installed that are affected by a vulnerability referenced in the following CVE:- ChaCha20-Poly1305 is an AEAD cipher, and requires a unique nonce input for every encryption operation. RFC
7539 specifies that the nonce value (IV) should be 96 bits (12 bytes). OpenSSL allows a variable nonce
length and front pads the nonce with 0 bytes if it is less than 12 bytes. However it also incorrectly
allows a nonce to be set of up to 16 bytes. In this case only the last 12 bytes are significant and any
additional leading bytes are ignored. It is a requirement of using this cipher that nonce values are
unique. Messages encrypted using a reused nonce value are susceptible to serious confidentiality and
integrity attacks. If an application changes the default nonce length to be longer than 12 bytes and then
makes a change to the leading bytes of the nonce expecting the new value to be a new unique nonce then
such an application could inadvertently encrypt messages with a reused nonce. Additionally the ignored
bytes in a long nonce are not covered by the integrity guarantee of this cipher. Any application that
relies on the integrity of these ignored leading bytes of a long nonce may be further affected. Any
OpenSSL internal use of this cipher, including in SSL/TLS, is safe because no such use sets such a long
nonce value. However user applications that use this cipher directly and set a non-default nonce length to
be longer than 12 bytes may be vulnerable. OpenSSL versions 1.1.1 and 1.1.0 are affected by this issue.
Due to the limited scope of affected deployments this has been assessed as low severity and therefore we
are not creating new releases at this time. Fixed 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). (CVE-2019-1543)
See Also
Plugin Details
Severity: High
ID: 406139
Version: Revision 1.25
Type: Local
Published: 10/31/2023
Updated: 7/2/2026
Supported Sensors: Agentless Assessment, Tenable Cloud Security, Tenable Self-Hosted Container Security
Risk Information
VPR
Risk Factor: Medium
Score: 4.3
Percentile: 53.37
CVSS v2
Risk Factor: Medium
Base Score: 5.8
Temporal Score: 4.3
Vector: CVSS2#AV:N/AC:M/Au:N/C:P/I:P/A:N
CVSS Score Source: CVE-2019-1543
CVSS v3
Risk Factor: High
Base Score: 7.4
Temporal Score: 6.4
Vector: CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N
Temporal Vector: CVSS:3.0/E:U/RL:O/RC:C
Vulnerability Information
Exploit Ease: No known exploits are available
Vulnerability Publication Date: 3/6/2019
Reference Information
CVE: CVE-2019-1543
BID: 107349