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CVE-2017-2103: The LaLa Call App for Android 2.4.7 and earlier does not verify X.509 certificates from SSL servers, which all

39
Routine
MEDIUM 5.9REMOTEUPGRADE

CVE-2017-2103 is a medium-severity flaw (CVSS 5.9) affecting lala call. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

The LaLa Call App for Android 2.4.7 and earlier does not verify X.509 certificates from SSL servers, which allows man-in-the-middle attackers to spoof servers and obtain sensitive information via a crafted certificate.

Why this priority

  • Remotely exploitable, no login, no user action

A fixed release or distro patch exists.

Risk facts

CVSS score5.9 (Medium)
Attack vectorNetwork (remote)
Attack complexityHigh
Privileges neededNone
User interactionNone
EPSS exploit chance0.7% (top 48%)
CISA exploited listNo
WeaknessCWE-200
Published2017-04-28
Last modified2026-06-17
Publisher (CNA): JPCERT/CC · Vendor: k-opticom corporation

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

Am I affected?

Timeline

k-opticom corporation lala call UPGRADE
Affected: <= 2.4.7
Fixed in: newer than 2.4.7
Safe to downgrade to: no unaffected older release
1. Check installed version
apt-cache policy lala-call || rpm -q lala-call || lala-call --version
2. UPGRADE to newer than 2.4.7 (Debian / Ubuntu)
sudo apt update && sudo apt install --only-upgrade lala-call
2. UPGRADE (RHEL / Amazon Linux / Fedora)
sudo dnf upgrade lala-call
Note
Distros often backport fixes without changing the version number. Confirm with the distro advisory or changelog.
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-2017-2103?

lala call: upgrade to newer than 2.4.7. Exact commands for each OS are on this page.

Is CVE-2017-2103 being exploited?

CVE-2017-2103 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-2017-2103 affect?

CVE-2017-2103 affects lala call. Severity is medium (CVSS 5.9). The LaLa Call App for Android 2.4.7 and earlier does not verify X.509 certificates from SSL servers, which allows man-in-the-middle attackers to spoof servers and obtain sensitive information via a crafted certificate.

How urgent is CVE-2017-2103?

Priority 39/100. Remotely exploitable, no login, no user action

Software pages

Android vulnerabilities

References

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