Gentoo update for OpenSSL
| Risk | Low |
| Patch available | YES |
| Number of vulnerabilities | 3 |
| CVE-ID | CVE-2018-0733 CVE-2018-0737 CVE-2018-0739 |
| CWE-ID | CWE-287 CWE-200 CWE-400 |
| Exploitation vector | Network |
| Public exploit | N/A |
| Vulnerable software Subscribe |
Gentoo Linux Operating systems & Components / Operating system |
| Vendor | Gentoo |
Security Bulletin
This security bulletin contains information about 3 vulnerabilities.
1) Improper authentication
EUVDB-ID: #VU11293
Risk: Low
CVSSv3.1: 4.6 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N/E:U/RL:O/RC:C]
CVE-ID: CVE-2018-0733
CWE-ID:
CWE-287 - Improper Authentication
Exploit availability: No
DescriptionThe vulnerability allows a remote attacker to modify potentially sensitive information on the target system.
Th weakness exists in the PA-RISC CRYPTO_memcmp function due to improper authentication. A remote attacker can write arbitrary data.
Update the affected packages.
dev-libs/openssl to version: 1.0.2o
Gentoo Linux: All versions
External linkshttp://security.gentoo.org/glsa/201811-21
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: #VU11854
Risk: Low
CVSSv3.1: 2.9 [CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N/E:U/RL:O/RC:C]
CVE-ID: CVE-2018-0737
CWE-ID:
CWE-200 - Information exposure
Exploit availability: No
DescriptionThe vulnerability allows a local attacker to obtain potentially sensitive information on the target system.
The weakness exists in the RSA key generation algorithm's BN_mod_inverse() and BN_mod_exp_mont() functions due to a cache timing side channel attack. A local attacker can recover the private key.
Update the affected packages.
dev-libs/openssl to version: 1.0.2o
Gentoo Linux: All versions
External linkshttp://security.gentoo.org/glsa/201811-21
Q & A
Can this vulnerability be exploited remotely?
No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.
Is there known malware, which exploits this vulnerability?
No. We are not aware of malware exploiting this vulnerability.
3) Resource exhaustion
EUVDB-ID: #VU11294
Risk: Low
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-2018-0739
CWE-ID:
CWE-400 - Resource exhaustion
Exploit availability: No
DescriptionThe vulnerability allows a remote attacker to cause DoS condition on the target system.
The weakness exists due to excessive stack memory consumption. A remote attacker can cause the service to crash.
Update the affected packages.
dev-libs/openssl to version: 1.0.2o
Gentoo Linux: All versions
External linkshttp://security.gentoo.org/glsa/201811-21
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.
