Reachable Assertion in subversion (Alpine package)



Risk Medium
Patch available YES
Number of vulnerabilities 1
CVE-ID CVE-2018-11782
CWE-ID CWE-617
Exploitation vector Network
Public exploit N/A
Vulnerable software
 subversion (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) Reachable Assertion

EUVDB-ID: #VU19589

Risk: Medium

CVSSv4.0: 4.9 [CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Green]

CVE-ID: CVE-2018-11782

CWE-ID: CWE-617 - Reachable Assertion

Exploit availability: No

Description

The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.

The vulnerability exists due to a reachable assertion when handling svnserve 'get-deleted-rev' requests. A remote authenticated attacker with read-only permissions can make the server to reply with incorrect revision number that will lead to svnserve crash.

Mitigation

Install update from vendor's website.

Vulnerable software versions

subversion (Alpine package): 1.9.2-r0 - 1.9.7-r0

CPE2.3 External links

https://git.alpinelinux.org/aports/commit/?id=eceae12fdc59478d8577e129f7c7ff024e0fac0b
https://git.alpinelinux.org/aports/commit/?id=00283c5e934a2d9ca643bd5520a1c15855a6e85d
https://git.alpinelinux.org/aports/commit/?id=815a43cf9c8f71f24f63ffdcc6c77c61ff988f59
https://git.alpinelinux.org/aports/commit/?id=92bbb9e70c73b190532ce28b44e074f8f0b1745b
https://git.alpinelinux.org/aports/commit/?id=ca2172ac44a492441b25565d8038cc7ec6c2a601


Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote authenticated user via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.



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