OpenSUSE Linux update for compat-openssl098
| Risk | Low |
| Patch available | YES |
| Number of vulnerabilities | 3 |
| CVE-ID | CVE-2016-8610 CVE-2018-0734 CVE-2018-5407 |
| CWE-ID | CWE-388 CWE-200 CWE-208 |
| Exploitation vector | Network |
| Public exploit | Public exploit code for vulnerability #3 is available. |
| Vulnerable software Subscribe |
Opensuse Operating systems & Components / Operating system |
| Vendor | SUSE |
Security Bulletin
This security bulletin contains information about 3 vulnerabilities.
1) Denial of service
EUVDB-ID: #VU1083
Risk: Low
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-2016-8610
CWE-ID:
CWE-388 - Error Handling
Exploit availability: No
DescriptionThe vulnerability allows a remote unauthenticated user to exhaust memory on the target system.
The weakness is due to improper handling of certain packets by the ssl3_read_bytes() function in 'ssl/s3_pkt.c.
By sending a flood of SSL3_AL_WARNING alerts during the SSL handshake, a remote attacker can consume excessive CPU resources that may lead to OpenSSL library being unavailable.
Successful exploitation of the vulnerability results in denial of service on the vulnerable system.
Update the affected packages.
Opensuse: 42.3
External linkshttp://lists.opensuse.org/opensuse-security-announce/2018-12/msg00026.html
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: #VU15668
Risk: Low
CVSSv3.1: 4.8 [CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N/E:U/RL:O/RC:C]
CVE-ID: CVE-2018-0734
CWE-ID:
CWE-200 - Information exposure
Exploit availability: No
DescriptionThe vulnerability allows a local attacker to obtain potentially sensitive information.
The vulnerability exists due to unspecified flaw in Digital Signature Algorithm (DSA). A local attacker can conduct a timing side-channel attack and recover the private key, which could be used to conduct further attacks.
MitigationUpdate the affected packages.
Opensuse: 42.3
External linkshttp://lists.opensuse.org/opensuse-security-announce/2018-12/msg00026.html
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) Side-channel attack
EUVDB-ID: #VU15723
Risk: Low
CVSSv3.1: 4.4 [CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N/E:P/RL:U/RC:C]
CVE-ID: CVE-2018-5407
CWE-ID:
CWE-208 - Information Exposure Through Timing Discrepancy
Exploit availability: Yes
DescriptionThe vulnerability allows a physical attacker to obtain potentially sensitive information.
The vulnerability exists due to due to execution of engine sharing on SMT (e.g.Hyper-Threading) architectures when improper handling of information by the processor. A physical attacker can construct a timing side channel to hijack information from processes that are running in the same core.
Note: the vulnerability has been dubbed as PortSmash microarchitecture bug.
MitigationUpdate the affected packages.
Opensuse: 42.3
External linkshttp://lists.opensuse.org/opensuse-security-announce/2018-12/msg00026.html
Q & A
Can this vulnerability be exploited remotely?
No. The attacker should have physical access to the system in order to successfully exploit this vulnerability.
Is there known malware, which exploits this vulnerability?
No. We are not aware of malware exploiting this vulnerability. However, proof of concept for this vulnerability is available.
