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CVE-2020-27678

CRITICALCVSS 9.8/10EPSS 1.42%

Last modified

CVE-2020-27678 is a critical-severity vulnerability rated 9.8/10 on the CVSS scale. An issue was discovered in illumos before 2020-10-22, as used in OmniOS before r151030by, r151032ay, and r151034y and SmartOS before 20201022. There is a buffer overflow in parse_user_name in lib/libpam/pam_framework.c.. EPSS estimates a 1.42% chance of exploitation in the next 30 days.

Description

An issue was discovered in illumos before 2020-10-22, as used in OmniOS before r151030by, r151032ay, and r151034y and SmartOS before 20201022. There is a buffer overflow in parse_user_name in lib/libpam/pam_framework.c.

Metrics

CVSS 3.1
9.8/10

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

EPSS Probability
1.42%

69.5th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

VendorProductVersions
IllumosIllumos< 2020-10-22
JoyentSmartos< 20201022
OmniosceOmnios< r151030by
OmniosceOmnios>= r151032, <= r151032ay
OmniosceOmnios>= r151034, < r151034y

References

Timeline

Published
Last Modified
Status
Modified

Frequently Asked Questions

What is CVE-2020-27678?
An issue was discovered in illumos before 2020-10-22, as used in OmniOS before r151030by, r151032ay, and r151034y and SmartOS before 20201022. There is a buffer overflow in parse_user_name in lib/libpam/pam_framework.c.
How severe is CVE-2020-27678?
CVE-2020-27678 has a CVSS score of 9.8/10 (CRITICAL severity). The EPSS model estimates a 1.42% probability of exploitation in the next 30 days.
How do I fix CVE-2020-27678?
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-2020-27678?

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

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Source: NVD / NIST