Multiple vulnerabilities in Mozilla NSS
| Risk | High |
| Patch available | YES |
| Number of vulnerabilities | 2 |
| CVE-ID | CVE-2019-11745 CVE-2019-17007 |
| CWE-ID | CWE-787 CWE-20 |
| Exploitation vector | Network |
| Public exploit | N/A |
| Vulnerable software Subscribe |
Mozilla NSS Universal components / Libraries / Libraries used by multiple products |
| Vendor | Mozilla |
Security Bulletin
This security bulletin contains information about 2 vulnerabilities.
UPDATED: 09.12.2019
Added vulnerability #2.
1) Out-of-bounds write
EUVDB-ID: #VU23050
Risk: High
CVSSv3.1: 8.5 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C]
CVE-ID: CVE-2019-11745
CWE-ID:
CWE-787 - Out-of-bounds write
Exploit availability: No
DescriptionThe vulnerability allows a remote attacker to compromise vulnerable system.
The vulnerability exists due to a boundary error when processing untrusted input within the NSC_EncryptUpdate() function in /lib/softoken/pkcs11c.c, when performing padding operations in Mozilla NSS. A remote attacker can pass specially crafted data to the affected application, trigger out-of-bounds write and execute arbitrary code on the target system.
MitigationInstall updates from vendor's website.
Vulnerable software versionsMozilla NSS: 3.0.1 - 3.47
External linkshttp://hg.mozilla.org/projects/nss/rev/4c20de402b3901df0cde590a46be2ba49adc028e
http://hg.mozilla.org/projects/nss/rev/60bca7c6dc6dc44579b9b3e0fb62ca3b82d92eec
Q & A
Can this vulnerability be exploited remotely?
Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.
Is there known malware, which exploits this vulnerability?
No. We are not aware of malware exploiting this vulnerability.
2) Input validation error
EUVDB-ID: #VU23467
Risk: Medium
CVSSv3.1: 6.5 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C]
CVE-ID: CVE-2019-17007
CWE-ID:
CWE-20 - Improper input validation
Exploit availability: No
DescriptionThe vulnerability allows a remote attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to insufficient validation of user-supplied input within the collect_certs() function in /lib/pkcs7/certread.c in Mozilla NSS library. A remote attacker can supply a specially crafted certificate to the application and perform a denial of service attack.
Install updates from vendor's website.
Vulnerable software versionsMozilla NSS: 3.0.1 - 3.47
External linkshttp://bugs.chromium.org/p/project-zero/issues/detail?id=1798
Q & A
Can this vulnerability be exploited remotely?
Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.
Is there known malware, which exploits this vulnerability?
No. We are not aware of malware exploiting this vulnerability.
