GnuPG up to 1.2.3/1.3.3 HKP Interface format string

CVSS Meta Temp Score
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CTI Interest Score
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6.6$0-$5k0.11

Summaryinfo

A vulnerability was found in GnuPG up to 1.2.3/1.3.3. It has been declared as critical. This affects an unknown function of the component HKP Interface. The manipulation results in format string. This vulnerability is identified as CVE-2003-0978. The attack can be executed remotely. Additionally, an exploit exists. It is recommended to upgrade the affected component.

Detailsinfo

A vulnerability, which was classified as critical, was found in GnuPG up to 1.2.3/1.3.3. Affected is some unknown processing of the component HKP Interface. The manipulation with an unknown input leads to a format string vulnerability. CWE is classifying the issue as CWE-134. The product uses a function that accepts a format string as an argument, but the format string originates from an external source. This is going to have an impact on confidentiality, integrity, and availability. CVE summarizes:

Format string vulnerability in gpgkeys_hkp (experimental HKP interface) for the GnuPG (gpg) client 1.2.3 and earlier, and 1.3.3 and earlier, allows remote attackers or a malicious keyserver to cause a denial of service (crash) and possibly execute arbitrary code during key retrieval.

The bug was discovered 11/27/2003. The weakness was released 12/03/2003 by Evgeny Legerov with S-Quadra (Website). The advisory is available at s-quadra.com. This vulnerability is traded as CVE-2003-0978 since 12/09/2003. It is possible to launch the attack remotely. The exploitation doesn't require any form of authentication. Technical details are unknown but a public exploit is available.

The exploit is shared for download at s-quadra.com. It is declared as proof-of-concept. The vulnerability was handled as a non-public zero-day exploit for at least 6 days. During that time the estimated underground price was around $0-$5k.

Upgrading eliminates this vulnerability. Applying a patch is able to eliminate this problem. The bugfix is ready for download at gnupg.org. The best possible mitigation is suggested to be upgrading to the latest version.

The vulnerability is also documented in the databases at X-Force (13892), SecurityFocus (BID 9144†), OSVDB (2899†) and Secunia (SA10348†). Further details are available at lists.gnupg.org. If you want to get best quality of vulnerability data, you may have to visit VulDB.

Productinfo

Name

Version

License

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 7.3
VulDB Meta Temp Score: 6.6

VulDB Base Score: 7.3
VulDB Temp Score: 6.6
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Format string
CWE: CWE-134 / CWE-119
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Access: Public
Status: Proof-of-Concept
Download: 🔍

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Patch: gnupg.org

Timelineinfo

11/27/2003 🔍
12/03/2003 +6 days 🔍
12/03/2003 +0 days 🔍
12/04/2003 +1 days 🔍
12/04/2003 +0 days 🔍
12/04/2003 +0 days 🔍
12/09/2003 +4 days 🔍
01/05/2004 +27 days 🔍
08/09/2019 +5695 days 🔍

Sourcesinfo

Advisory: s-quadra.com
Researcher: Evgeny Legerov
Organization: S-Quadra
Status: Not defined

CVE: CVE-2003-0978 (🔍)
GCVE (CVE): GCVE-0-2003-0978
GCVE (VulDB): GCVE-100-426
X-Force: 13892 - GnuPG gpgkeys_hkp utility format string, High Risk
SecurityFocus: 9144 - GnuPG External HKP Format String Vulnerability
Secunia: 10348 - GnuPG HTTP Keyserver Protocol Interface Format String Vulnerability, Less Critical
OSVDB: 2899 - GnuPG HTTP Keyserver Protocol Interface Format String
SecuriTeam: securiteam.com

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

Entryinfo

Created: 12/04/2003 12:03
Updated: 08/09/2019 15:34
Changes: 12/04/2003 12:03 (77), 08/09/2019 15:34 (4)
Complete: 🔍
Cache ID: 216:F16:103

If you want to get best quality of vulnerability data, you may have to visit VulDB.

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