CVE-2017-10668: A Padding Oracle exists in OSCI-Transport 1.2 as used in OSCI Transport Library 1.6.1 (Java) and OSCI Transpor

Routine

MEDIUM 5.9REMOTEDOWNGRADE

CVE-2017-10668 is a medium-severity flaw (CVSS 5.9) affecting osci transport library. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

A Padding Oracle exists in OSCI-Transport 1.2 as used in OSCI Transport Library 1.6.1 (Java) and OSCI Transport Library 1.6 (.NET). Under an MITM condition within the OSCI infrastructure, an attacker needs to send crafted protocol messages to analyse the CBC mode padding in order to decrypt the transport encryption.

Why this priority

Remotely exploitable, no login, no user action

No fix is published yet: follow the downgrade or mitigation steps.

Risk facts

CVSS score	5.9 (Medium)
Attack vector	Network (remote)
Attack complexity	High
Privileges needed	None
User interaction	None
EPSS exploit chance	0.3% (top 74%)
CISA exploited list	No
Weakness	CWE-327
Published	2017-06-30
Last modified	2026-06-17

Publisher (CNA): MITRE · Vendor: xoev

Last updated 2026-06-17 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2017-06-30 12:29 UTCPublished CVE record published
2026-06-17 01:00 UTCUpdated Record last modified

xoev osci transport library DOWNGRADE

Affected: 1.6 · 1.6.1

Fixed in: no fixed release known

Safe to downgrade to: a release before 1.6

1. Check installed version

apt-cache policy osci-transport-library || rpm -q osci-transport-library || osci-transport-library --version

2. No fixed release: DOWNGRADE to a release before 1.6 (Debian / Ubuntu)

apt-cache madison osci-transport-library sudo apt install osci-transport-library=<VERSION_BEFORE_1.6> sudo apt-mark hold osci-transport-library

2. No fixed release: DOWNGRADE (RHEL / Amazon Linux / Fedora)

dnf --showduplicates list osci-transport-library sudo dnf downgrade osci-transport-library-<VERSION_BEFORE_1.6> sudo dnf versionlock add osci-transport-library

Downgrade risk

Downgrading can break dependent software and may reopen older bugs. Read the distro advisory first and test on a non-production host.

After downgrade

Restart the service, and keep the package held until a fixed release ships.

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2017-10668?

osci transport library: downgrade or apply the listed mitigation. Exact commands for each OS are on this page.

Is CVE-2017-10668 being exploited?

CVE-2017-10668 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2017-10668 affect?

CVE-2017-10668 affects osci transport library. Severity is medium (CVSS 5.9). A Padding Oracle exists in OSCI-Transport 1.2 as used in OSCI Transport Library 1.6.1 (Java) and OSCI Transport Library 1.6 (.NET). Under an MITM condition within the OSCI infrastructure, an attacker needs to send crafted protocol messages

How urgent is CVE-2017-10668?

Priority 32/100. Remotely exploitable, no login, no user action

Software pages

Java vulnerabilities

Related CVEs

CVE-2017-10670 CRITICAL 9.8 DOWNGRADE An XML External Entity (XXE) issue exists in OSCI-Transport 1.2 as used in OSCI Transport Library 1.6.1 (Java)
CVE-2017-10669 MEDIUM 6.5 DOWNGRADE Signature Wrapping exists in OSCI-Transport 1.2 as used in OSCI Transport Library 1.6.1 (Java) and OSCI Transp

References

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