SB2019062813 - Denial of service in Mozilla NSS
Published: June 28, 2019 Updated: December 12, 2019
Security Bulletin ID
SB2019062813
CSH Severity
Medium
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Remote access
Highest impact
Partial DoS
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 vulnerability.
1) Input validation error (CVE-ID: CVE-2019-11729)
CWE-ID: CWE-20 - Improper input validation
CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:U/U:Green
The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to insufficient validation of user-supplied input when processing an empty or malformed p256-ECDH public keys. A remote attacker can trigger a segmentation fault and cause a denial of service condition on the target system.
Remediation
Install update from vendor's website.
References
- http://lists.opensuse.org/opensuse-security-announce/2019-07/msg00055.html
- http://lists.opensuse.org/opensuse-security-announce/2019-07/msg00058.html
- https://access.redhat.com/errata/RHSA-2019:1951
- https://bugzilla.mozilla.org/show_bug.cgi?id=1515342
- https://www.mozilla.org/security/advisories/mfsa2019-21/
- https://www.mozilla.org/security/advisories/mfsa2019-22/
- https://www.mozilla.org/security/advisories/mfsa2019-23/