Use-after-free in samba (Alpine package)
| Risk | Low |
| Patch available | YES |
| Number of vulnerabilities | 1 |
| CVE-ID | CVE-2019-19344 |
| CWE-ID | CWE-416 |
| Exploitation vector | Network |
| Public exploit | N/A |
| Vulnerable software Subscribe |
samba (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) Use-after-free
EUVDB-ID: #VU24467
Risk: Low
CVSSv3.1: 3.5 [CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:L/I:N/A:N/E:U/RL:O/RC:C]
CVE-ID: CVE-2019-19344
CWE-ID:
CWE-416 - Use After Free
Exploit availability: No
DescriptionThe vulnerability allows a remote attacker to gain access to sensitive information.
The vulnerability exists due to a use-after-free error during DNS zone scavenging. A remote attacker can under rare conditions to query DNS and obtain parts of memory that was written into database during zone scavenging process.
Install update from vendor's website.
Vulnerable software versionssamba (Alpine package): 4.10.2-r0 - 4.10.11-r0
External linkshttp://git.alpinelinux.org/aports/commit/?id=0ed412d466e679ac0e649cf8c413b67f729bc5a8
http://git.alpinelinux.org/aports/commit/?id=b3a750a9f748a73e74fc78b2e49eb796e5496960
http://git.alpinelinux.org/aports/commit/?id=fddd8a3d858001f0e0d27c7fd9e1ffddf8ccdd2e
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.
