Denial of service in openSUSE libsolv



Published: 2020-01-22
Risk Medium
Patch available YES
Number of vulnerabilities 1
CVE-ID CVE-2019-20387
CWE-ID CWE-125
Exploitation vector Network
Public exploit N/A
Vulnerable software
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libsolv
Universal components / Libraries / Libraries used by multiple products

Vendor SUSE

Security Bulletin

This security bulletin contains one medium risk vulnerability.

1) Out-of-bounds read

EUVDB-ID: #VU24490

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 - Out-of-bounds read

Exploit availability: No

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

External links

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


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.



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