Vulnerability identifier: #VU24490

Vulnerability risk: Medium

CVSSv3.1: 6.5 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2019-20387

CWE-ID: CWE-125

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
libsolv
Universal components / Libraries / Libraries used by multiple products

Vendor: SUSE

Description

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

The vulnerability exists due to heap-based buffer over-read via a last schema whose length is less than the length of the input schema. A remote attacker can perform a denial of service attack.

Mitigation
Install update from vendor's website.

Vulnerable software versions

libsolv: 0.6.0 - 0.7.5

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External links
http://github.com/openSUSE/libsolv/commit/fdb9c9c03508990e4583046b590c30d958f272da
http://github.com/openSUSE/libsolv/compare/0.7.5...0.7.6

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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.