Debian update for nss
| Risk | Low |
| Patch available | YES |
| Number of vulnerabilities | 3 |
| CVE-ID | CVE-2017-5461 CVE-2017-5462 CVE-2017-7502 |
| CWE-ID | CWE-787 CWE-200 CWE-476 |
| Exploitation vector | Network |
| Public exploit | N/A |
| Vulnerable software Subscribe |
Debian Linux Operating systems & Components / Operating system |
| Vendor | Debian |
Security Bulletin
This security bulletin contains information about 3 vulnerabilities.
1) Out-of-bounds write
EUVDB-ID: #VU6316
Risk: High
CVSSv3.1: 8.3 [CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H/E:U/RL:O/RC:C]
CVE-ID: CVE-2017-5461
CWE-ID:
CWE-787 - Out-of-bounds write
Exploit availability: No
DescriptionThe vulnerability allows a remote attacker to execute arbitrary code on the target system.
The vulnerability exists due to boundary error during Base64 decoding operation in the Network Security Services (NSS) library. A remote attacker can trigger out-of-bounds write and execute arbitrary code on the target system.
Successful exploitation of the vulnerability may allow an attacker to compromise vulnerable system.
MitigationUpdate the affected package to version 2:3.26-1+debu8u2.
Vulnerable software versionsDebian Linux: All versions
External linkshttp://www.debian.org/security/2017/dsa-3872
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) Information disclosure
EUVDB-ID: #VU6339
Risk: Low
CVSSv3.1: 4.1 [CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:N/A:N/E:U/RL:O/RC:C]
CVE-ID: CVE-2017-5462
CWE-ID:
CWE-200 - Information exposure
Exploit availability: No
DescriptionA flaw in DRBG number generation within the Network Security Services (NSS) library where the internal state V does not correctly carry bits over. The NSS library has been updated to fix this issue to address this issue and Firefox has been updated with corresponding version of NSS.
MitigationUpdate the affected package to version 2:3.26-1+debu8u2.
Vulnerable software versionsDebian Linux: All versions
External linkshttp://www.debian.org/security/2017/dsa-3872
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.
3) NULL pointer dereference
EUVDB-ID: #VU6841
Risk: Medium
CVSSv3.1: 4.6 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L/E:U/RL:O/RC:C]
CVE-ID: CVE-2017-7502
CWE-ID:
CWE-476 - NULL Pointer Dereference
Exploit availability: No
DescriptionThe vulnerability allows a remote attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to NULL pointer dereference error in NSS since 3.24.0 when processing empty SSLv2 messages, received from clients. A remote attacker can send specially crafted request to vulnerable service and perform denial of service attack.
Update the affected package to version 2:3.26-1+debu8u2.
Vulnerable software versionsDebian Linux: All versions
External linkshttp://www.debian.org/security/2017/dsa-3872
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.
