A vulnerability, which was classified as problematic, has been found in Svgalib 1.2.10. Affected by this issue is an unknown function of the component zgv. The manipulation of the argument HOME as part of a Environment Variable leads to a memory corruption vulnerability. Using CWE to declare the problem leads to CWE-119. The product performs operations on a memory buffer, but it can read from or write to a memory location that is outside of the intended boundary of the buffer. Impacted is confidentiality, integrity, and availability. CVE summarizes:

buffer overflow in zgv in svgalib 1.2.10 and earlier allows local users to execute arbitrary code via a long home environment variable.

The weakness was released 06/19/1997 by KSR[T] as confirmed posting (Bugtraq). The advisory is shared for download at securityfocus.com. This vulnerability is handled as CVE-1999-1483. The exploitation is known to be easy. The attack needs to be approached locally. No form of authentication is required for exploitation. Technical details as well as a public exploit are known.

A public exploit has been developed by BeastMaster V and been published 2 weeks after the advisory. The exploit is available at exploit-db.com. It is declared as proof-of-concept.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

The vulnerability is also documented in the databases at X-Force (3412) and Exploit-DB (339).

Productinfo

Name

• Svgalib

Version

• 1.2.10

CPE 2.3info

• 🔍

CPE 2.2info

• 🔍

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