Svgalib 1.2.10 zgv HOME memory corruption

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CTI Interest Score
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5.6$0-$5k0.00

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. 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. It is declared as proof-of-concept. The exploit is available at exploit-db.com.

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 vulnerability database at X-Force (3412).

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VulDB Meta Base Score: 5.9
VulDB Meta Temp Score: 5.6

VulDB Base Score: 5.9
VulDB Temp Score: 5.6
VulDB Vector: 🔍
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Exploitinginfoedit

Class: Memory corruption
CWE: CWE-119
ATT&CK: Unknown

Local: Yes
Remote: No

Availability: 🔍
Access: Public
Status: Proof-of-Concept
Author: BeastMaster V
Download: 🔍

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Current Price Estimation: 🔍

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Countermeasuresinfoedit

Recommended: no mitigation known
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Timelineinfoedit

06/19/1997 🔍
06/19/1997 +0 days 🔍
06/20/1997 +1 days 🔍
06/27/1997 +7 days 🔍
04/09/2004 +2477 days 🔍
06/18/2014 +3722 days 🔍
05/19/2018 +1431 days 🔍

Sourcesinfoedit

Advisory: securityfocus.com
Researcher: KSR[T]
Status: Confirmed

CVE: CVE-1999-1483 (🔍)
X-Force: 3412
OSVDB: 11225 - SVGAlib zgv HOME Environment Variable Local Overflow

scip Labs: https://www.scip.ch/en/?labs.20161013

Entryinfoedit

Created: 06/18/2014 11:50 AM
Updated: 05/19/2018 09:49 AM
Changes: (16) vulnerability_cvss2_nvd_av vulnerability_cvss2_nvd_ac vulnerability_cvss2_nvd_au vulnerability_cvss2_nvd_ci vulnerability_cvss2_nvd_ii vulnerability_cvss2_nvd_ai advisory_person_nickname exploit_availability exploit_date exploit_publicity exploit_url exploit_developer_name source_osvdb_create source_xforce source_exploitdb source_exploitdb_date
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