Integer overflow in xen (Alpine package)
| Risk | Low |
| Patch available | YES |
| Number of vulnerabilities | 1 |
| CVE-ID | CVE-2018-15471 |
| CWE-ID | CWE-190 |
| Exploitation vector | Local network |
| Public exploit | N/A |
| Vulnerable software Subscribe |
xen (Alpine package) Operating systems & Components / Operating system package or component |
| Vendor | Alpine Linux Development Team |
Security Bulletin
This security bulletin contains one low risk vulnerability.
1) Integer overflow
EUVDB-ID: #VU14475
Risk: Low
CVSSv3.1: 7.7 [CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C]
CVE-ID: CVE-2018-15471
CWE-ID:
CWE-190 - Integer overflow
Exploit availability: No
DescriptionThe vulnerability allows an adjacent attacker to gain elevated privileges on the target system.
The vulnerability exists in xenvif_set_hash_mapping in drivers/net/xen-netback/hash.c due to integer overflow when handling malicious input. An adjacent attacker can supply a malicious or buggy frontend request to set or change mapping of requests to request queues, cause the (usually privileged) backend to make out of bounds memory accesses and gain access to arbitrary data, cause the service to crash or gain elevated privileges.
MitigationInstall update from vendor's website.
Vulnerable software versionsxen (Alpine package): 4.10.1-r2
External linkshttp://git.alpinelinux.org/aports/commit/?id=74dce6e0451466b8eb5078660886cc226f9704f4
Q & A
Can this vulnerability be exploited remotely?
Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the local network (LAN).
Is there known malware, which exploits this vulnerability?
No. We are not aware of malware exploiting this vulnerability.
