Debian update for qemu
| Risk | Low |
| Patch available | YES |
| Number of vulnerabilities | 3 |
| CVE-ID | CVE-2018-10839 CVE-2018-17962 CVE-2018-17963 |
| CWE-ID | CWE-190 CWE-120 |
| Exploitation vector | Network |
| Public exploit | N/A |
| Vulnerable software |
Debian Linux Operating systems & Components / Operating system |
| Vendor | Debian |
Security Bulletin
This security bulletin contains information about 3 vulnerabilities.
1) Integer overflow
EUVDB-ID: #VU15995
Risk: Low
CVSSv4.0: 6.6 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear]
CVE-ID: CVE-2018-10839
CWE-ID:
CWE-190 - Integer overflow
Exploit availability: No
DescriptionThe vulnerability allows a remote attacker to cause DoS condition on the target system.
The vulnerability exists due to integer overflow when built with the NE2000 NIC emulation support. A remote attacker can supply specially crafted packets over the network, trigger memory corruption and crash the Qemu process.
MitigationUpdate the affected package to version: 1:2.8+dfsg-6+deb9u5
Vulnerable software versionsDebian Linux: All versions
CPE2.3 External linkshttps://www.debian.org/security/2018/dsa-4338
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) Buffer overflow
EUVDB-ID: #VU15996
Risk: Low
CVSSv4.0: 6.6 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear]
CVE-ID: CVE-2018-17962
CWE-ID:
CWE-120 - Buffer overflow
Exploit availability: No
DescriptionThe vulnerability allows a remote attacker to cause DoS condition on the target system.
The vulnerability exists due to buffer overflow in pcnet_receive in hw/net/pcnet.c when an incorrect integer data type is used. A remote attacker can supply specially crafted packets over the network, trigger memory corruption and crash the Qemu process.
MitigationUpdate the affected package to version: 1:2.8+dfsg-6+deb9u5
Vulnerable software versionsDebian Linux: All versions
CPE2.3 External linkshttps://www.debian.org/security/2018/dsa-4338
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) Buffer overflow
EUVDB-ID: #VU15997
Risk: Low
CVSSv4.0: 6.6 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear]
CVE-ID: CVE-2018-17963
CWE-ID:
CWE-120 - Buffer overflow
Exploit availability: No
DescriptionThe vulnerability allows a remote attacker to cause DoS condition on the target system.
The vulnerability exists due to buffer overflow when qemu_deliver_packet_iov in net/net.c in Qemu accepts packet sizes greater than INT_MAX. A remote attacker can supply specially crafted packets over the network, trigger memory corruption and crash the Qemu process.
MitigationUpdate the affected package to version: 1:2.8+dfsg-6+deb9u5
Vulnerable software versionsDebian Linux: All versions
CPE2.3 External linkshttps://www.debian.org/security/2018/dsa-4338
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.
