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Ubuntu 16.04 And 14.04 Security Advisory: NSS DoS Threat

ubuntu
Calendar Grey February 15, 2023
Dist Ubuntu Esm H88
Multiple vulnerabilities addressed in NSS impact Ubuntu 14.04 and 16.04. Upgrade promptly to mitigate risks of possible Denial of Service threats.
Several security issues were fixed in NSS.

Summary

Several security issues were fixed in NSS.

Software Description:

- nss: Network Security Service library

Details:

Tavis Ormandy discovered that NSS incorrectly handled an empty pkcs7

sequence. A remote attacker could possibly use this issue to cause NSS to

crash, resulting in a denial of service. (CVE-2022-22747)

Ronald Crane discovered that NSS incorrectly handled certain memory

operations. A remote attacker could use this issue to cause NSS to crash,

resulting in a denial of service, or possibly execute arbitrary code.

(CVE-2022-34480)

Topics%20covered

Topics Covered

security advisory denial of service remote attack Ubuntu NSS

Update Instructions

The problem can be corrected by updating your system to the following
package versions:

Ubuntu 16.04 ESM:
   libnss3                         2:3.28.4-0ubuntu0.16.04.14+esm3

Ubuntu 14.04 ESM:
   libnss3                         2:3.28.4-0ubuntu0.14.04.5+esm11

After a standard system update you need to restart any applications that
use NSS to make all the necessary changes.

References

<>

  CVE-2022-22747, CVE-2022-34480

Severity
critical
Lowest
Low
Medium
High
Critical

Ubuntu Security Notice USN-5872-1

Topics%20covered

Topics Covered

security advisory denial of service remote attack Ubuntu NSS

Package Information

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