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Alpine: multiple putty packages: security update to 0.81-r0
medium Tenable Self-Hosted Container Security Plugin ID 408377
Description
There are packages installed that are affected by a vulnerability referenced in the following CVE:- In PuTTY 0.68 through 0.80 before 0.81, biased ECDSA nonce generation allows an attacker to recover a
user's NIST P-521 secret key via a quick attack in approximately 60 signatures. This is especially
important in a scenario where an adversary is able to read messages signed by PuTTY or Pageant. The
required set of signed messages may be publicly readable because they are stored in a public Git service
that supports use of SSH for commit signing, and the signatures were made by Pageant through an agent-
forwarding mechanism. In other words, an adversary may already have enough signature information to
compromise a victim's private key, even if there is no further use of vulnerable PuTTY versions. After a
key compromise, an adversary may be able to conduct supply-chain attacks on software maintained in Git. A
second, independent scenario is that the adversary is an operator of an SSH server to which the victim
authenticates (for remote login or file copy), even though this server is not fully trusted by the victim,
and the victim uses the same private key for SSH connections to other services operated by other entities.
Here, the rogue server operator (who would otherwise have no way to determine the victim's private key)
can derive the victim's private key, and then use it for unauthorized access to those other services. If
the other services include Git services, then again it may be possible to conduct supply-chain attacks on
software maintained in Git. This also affects, for example, FileZilla before 3.67.0, WinSCP before 6.3.3,
TortoiseGit before 2.15.0.1, and TortoiseSVN through 1.14.6. (CVE-2024-31497)
See Also
Plugin Details
Severity: Medium
ID: 408377
Version: Revision 1.17
Type: Local
Published: 4/17/2024
Updated: 7/2/2026
Supported Sensors: Agentless Assessment, Tenable Cloud Security, Tenable Self-Hosted Container Security
Risk Information
VPR
Risk Factor: Low
Score: 3
Percentile: 23.73
CVSS v2
Risk Factor: Medium
Base Score: 5.4
Temporal Score: 4.2
Vector: CVSS2#AV:N/AC:H/Au:N/C:C/I:N/A:N
CVSS Score Source: CVE-2024-31497
CVSS v3
Risk Factor: Medium
Base Score: 5.9
Temporal Score: 5.3
Vector: CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N
Temporal Vector: CVSS:3.0/E:P/RL:O/RC:C
Vulnerability Information
Exploit Available: true
Exploit Ease: Exploits are available
Vulnerability Publication Date: 4/15/2024
Reference Information
CVE: CVE-2024-31497
IAVA: 2024-A-0243