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CVE-2015-3146

UnknownEPSS 3.91%

Last modified

CVE-2015-3146 is a vulnerability of currently unknown severity. The (1) SSH_MSG_NEWKEYS and (2) SSH_MSG_KEXDH_REPLY packet handlers in package_cb.c in libssh before 0.6.5 do not properly validate state, which allows remote attackers to cause a denial of service (NULL pointer dereference and crash) via a crafted SSH packet.. EPSS estimates a 3.91% chance of exploitation in the next 30 days.

Description

The (1) SSH_MSG_NEWKEYS and (2) SSH_MSG_KEXDH_REPLY packet handlers in package_cb.c in libssh before 0.6.5 do not properly validate state, which allows remote attackers to cause a denial of service (NULL pointer dereference and crash) via a crafted SSH packet.

Metrics

EPSS Probability
3.91%

88.9th percentile

Probability of exploitation in the next 30 days. Learn more

Affected Software

VendorProductVersions
LibsshLibssh<= 0.6.4
CanonicalUbuntu Linux12.04
CanonicalUbuntu Linux14.04
CanonicalUbuntu Linux15.10
DebianDebian Linux7.0
DebianDebian Linux8.0
FedoraprojectFedora21
FedoraprojectFedora22

References

Timeline

Published
Last Modified
Status
Modified

Frequently Asked Questions

What is CVE-2015-3146?
The (1) SSH_MSG_NEWKEYS and (2) SSH_MSG_KEXDH_REPLY packet handlers in package_cb.c in libssh before 0.6.5 do not properly validate state, which allows remote attackers to cause a denial of service (NULL pointer dereference and crash) via a crafted SSH packet.
How severe is CVE-2015-3146?
Severity scoring for CVE-2015-3146 is pending analysis. The EPSS model estimates a 3.91% probability of exploitation in the next 30 days.
How do I fix CVE-2015-3146?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2015-3146?

Run a free Strix scan to check your systems for this vulnerability.

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Source: NVD / NIST