GNU gzip up to 1.3.13 unlzw.c unlzw numeric error

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7.0	$0-$5k	0.00

Summaryinfo

A vulnerability was found in GNU gzip up to 1.3.13. It has been declared as critical. This affects the function unlzw of the file unlzw.c. The manipulation results in numeric error. This vulnerability was named CVE-2010-0001. There is no available exploit. It is recommended to upgrade the affected component.

Detailsinfo

A vulnerability, which was classified as critical, was found in GNU gzip up to 1.3.13. Affected is the function unlzw of the file unlzw.c. The manipulation with an unknown input leads to a numeric error vulnerability. CWE is classifying the issue as CWE-189. This is going to have an impact on confidentiality, integrity, and availability. CVE summarizes:

Integer underflow in the unlzw function in unlzw.c in gzip before 1.4 on 64-bit platforms, as used in ncompress and probably others, allows remote attackers to cause a denial of service (application crash) or possibly execute arbitrary code via a crafted archive that uses LZW compression, leading to an array index error.

The weakness was presented 01/20/2010 (Website). The advisory is shared for download at rhn.redhat.com. This vulnerability is traded as CVE-2010-0001. It is possible to launch the attack remotely. The exploitation doesn't require any form of authentication. There are known technical details, but no exploit is available.

The vulnerability scanner Nessus provides a plugin with the ID 67990 (Oracle Linux 3 / 4 / 5 : gzip (ELSA-2010-0061)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Oracle Linux Local Security Checks. The commercial vulnerability scanner Qualys is able to test this issue with plugin 116823 (GNU Gzip Dynamic Huffman Decompression Remote Code Execution Vulnerability).

Upgrading to version 1.2.4 eliminates this vulnerability.

The vulnerability is also documented in the databases at Tenable (67990), SecurityFocus (BID 37886†), OSVDB (61869†), SecurityTracker (ID 1023490†) and Vulnerability Center (SBV-24667†). See VDB-40214, VDB-51836, VDB-51835 and VDB-51834 for similar entries. Once again VulDB remains the best source for vulnerability data.

Productinfo

Vendor

• GNU

Name

• gzip

Version

• 1.2.4
• 1.2.4a
• 1.3
• 1.3.1
• 1.3.2
• 1.3.3
• 1.3.4
• 1.3.5
• 1.3.6
• 1.3.7
• 1.3.8
• 1.3.9
• 1.3.10
• 1.3.11
• 1.3.12
• 1.3.13

License

• open-source

Website

• Vendor: https://www.gnu.org/

CPE 2.3info

• 🔍
• 🔍
• 🔍

CPE 2.2info

• 🔍
• 🔍
• 🔍

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 7.3
VulDB Meta Temp Score: 7.0

VulDB Base Score: 7.3
VulDB Temp Score: 7.0
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

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Vector	Complexity	Authentication	Confidentiality	Integrity	Availability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Numeric error
CWE: CWE-189
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

0-Day	Unlock	Unlock	Unlock	Unlock
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Nessus ID: 67990
Nessus Name: Oracle Linux 3 / 4 / 5 : gzip (ELSA-2010-0061)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Port: 🔍

OpenVAS ID: 66771
OpenVAS Name: Debian Security Advisory DSA 1974-1 (gzip)
OpenVAS File: 🔍
OpenVAS Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: gzip 1.2.4

Timelineinfo

12/14/2009 🔍
01/20/2010 +37 days 🔍
01/20/2010 +0 days 🔍
01/20/2010 +0 days 🔍
01/21/2010 +1 days 🔍
01/25/2010 +3 days 🔍
01/29/2010 +4 days 🔍
07/12/2013 +1260 days 🔍
03/18/2015 +614 days 🔍
04/29/2026 +4060 days 🔍

Sourcesinfo

Vendor: gnu.org

Advisory: rhn.redhat.com
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2010-0001 (🔍)
GCVE (CVE): GCVE-0-2010-0001
GCVE (VulDB): GCVE-100-51708

OVAL: 🔍

SecurityFocus: 37886 - GNU gzip LZW Compression Remote Integer Overflow Vulnerability
OSVDB: 61869 - GNU gzip unlzw.c unlzw() Function LZW File Handling Underflow
SecurityTracker: 1023490
Vulnerability Center: 24667 - GNU Gzip Remote Arbitrary Code Execution Vulnerability due to an Integer-Underflow, Medium

See also: 🔍

Entryinfo

Created: 03/18/2015 15:15
Updated: 04/29/2026 18:14
Changes: 03/18/2015 15:15 (67), 02/20/2017 10:10 (8), 08/31/2021 21:33 (4), 08/31/2021 21:43 (1), 12/08/2024 03:20 (18), 04/29/2026 18:14 (1)
Complete: 🔍
Cache ID: 216::103

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