Use-after-free in samba (Alpine package)
| Risk | Medium |
| Patch available | YES |
| Number of vulnerabilities | 1 |
| CVE-ID | CVE-2020-10700 |
| CWE-ID | CWE-416 |
| Exploitation vector | Local 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 medium risk vulnerability.
1) Use-after-free
EUVDB-ID: #VU27376
Risk: Medium
CVSSv3.1: 4.2 [CVSS:3.1/AV:A/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C]
CVE-ID: CVE-2020-10700
CWE-ID:
CWE-416 - Use After Free
Exploit availability: No
DescriptionThe vulnerability allows a remote attacker to perform a denial of service attack.
The vulnerability exists due to a use-after-free error when Paged results control is combined with ASQ control while performing search operations. A remote authenticated user can send a specially crafted LDAP search query, trigger a use-after-free error and perform a denial of service attack.
Install update from vendor's website.
Vulnerable software versionssamba (Alpine package): 4.10.2-r0 - 4.10.12-r0
External linkshttp://git.alpinelinux.org/aports/commit/?id=b430c8e9b07545e7ad2ecf2a3776a51ce0c28b45
http://git.alpinelinux.org/aports/commit/?id=218049ea4e079bdab8556dc80287273eb93f90f1
http://git.alpinelinux.org/aports/commit/?id=1e7e09895fd7887b6fba58b013e2f31f14e7afea
http://git.alpinelinux.org/aports/commit/?id=869dcbdc20fc7828503abbd281f7335db7ec4fc8
Q & A
Can this vulnerability be exploited remotely?
Yes. This vulnerability can be exploited by a remote authenticated user via the local network (LAN).
Is there known malware, which exploits this vulnerability?
No. We are not aware of malware exploiting this vulnerability.
