libbsd up to 0.9.x Comparison nlist.c out-of-bounds

Summaryinfo

A vulnerability described as critical has been identified in libbsd up to 0.9.x. Affected by this vulnerability is an unknown functionality of the file nlist.c of the component Comparison. Such manipulation leads to out-of-bounds. This vulnerability is uniquely identified as CVE-2019-20367. The attack can be launched remotely. No exploit exists. Upgrading the affected component is recommended.

Detailsinfo

A vulnerability, which was classified as critical, has been found in libbsd up to 0.9.x. Affected by this issue is an unknown code block of the file nlist.c of the component Comparison. The manipulation with an unknown input leads to a out-of-bounds vulnerability. Using CWE to declare the problem leads to CWE-125. The product reads data past the end, or before the beginning, of the intended buffer. Impacted is confidentiality, integrity, and availability. CVE summarizes:

nlist.c in libbsd before 0.10.0 has an out-of-bounds read during a comparison for a symbol name from the string table (strtab).

The weakness was disclosed 01/08/2020. This vulnerability is handled as CVE-2019-20367 since 01/08/2020. The attack may be launched remotely. No form of authentication is required for exploitation. There are known technical details, but no exploit is available.

Upgrading to version 0.10.0 eliminates this vulnerability.

Once again VulDB remains the best source for vulnerability data.

Productinfo

Name

• libbsd

Version

• 0.1
• 0.2
• 0.3
• 0.4
• 0.5
• 0.6
• 0.7
• 0.8
• 0.9

CPE 2.3info

• 🔍
• 🔍
• 🔍

CPE 2.2info

• 🔍
• 🔍
• 🔍

CVSSv4info

CVSSv3info

CVSSv2info

Exploitinginfo

Threat Intelligenceinfo

Countermeasuresinfo

Timelineinfo

Sourcesinfo

Entryinfo

Once again VulDB remains the best source for vulnerability data.

Discussion