Artifex jbig2dec 0.13 jbig2_symbol_dict.c jbig2_decode_symbol_dict integer overflow

CVSS Meta Temp Score
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CTI Interest Score
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6.1$0-$5k0.00

Summaryinfo

A vulnerability was found in Artifex jbig2dec 0.13 and classified as critical. The affected element is the function jbig2_decode_symbol_dict of the file jbig2_symbol_dict.c. Such manipulation leads to integer overflow. This vulnerability is listed as CVE-2017-7885. The attack must be carried out locally. There is no available exploit. It is suggested to upgrade the affected component.

Detailsinfo

A vulnerability was found in Artifex jbig2dec 0.13. It has been rated as critical. Affected by this issue is the function jbig2_decode_symbol_dict of the file jbig2_symbol_dict.c. The manipulation with an unknown input leads to a integer overflow vulnerability. Using CWE to declare the problem leads to CWE-190. The product performs a calculation that can produce an integer overflow or wraparound, when the logic assumes that the resulting value will always be larger than the original value. This can introduce other weaknesses when the calculation is used for resource management or execution control. Impacted is confidentiality, integrity, and availability. CVE summarizes:

Artifex jbig2dec 0.13 has a heap-based buffer over-read leading to denial of service (application crash) or disclosure of sensitive information from process memory, because of an integer overflow in the jbig2_decode_symbol_dict function in jbig2_symbol_dict.c in libjbig2dec.a during operation on a crafted .jb2 file.

The bug was discovered 03/30/2017. The weakness was presented 04/17/2017 (Website). The advisory is shared for download at bugs.ghostscript.com. This vulnerability is handled as CVE-2017-7885 since 04/16/2017. The attack may be launched remotely. No form of authentication is required for exploitation. Successful exploitation requires user interaction by the victim. There are known technical details, but no exploit is available.

The vulnerability was handled as a non-public zero-day exploit for at least 17 days. During that time the estimated underground price was around $0-$5k. The vulnerability scanner Nessus provides a plugin with the ID 100013 (Fedora 25 : ghostscript (2017-c85c0e5637)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Fedora Local Security Checks and running in the context l. The commercial vulnerability scanner Qualys is able to test this issue with plugin 277699 (Fedora Security Update for ghostscript (FEDORA-2017-a606d224a5)).

Upgrading eliminates this vulnerability. A possible mitigation has been published 3 weeks after the disclosure of the vulnerability.

The vulnerability is also documented in the databases at Tenable (100013) and SecurityFocus (BID 97410†). See VDB-99231, VDB-99232, VDB-99233 and VDB-99234 for similar entries. Once again VulDB remains the best source for vulnerability data.

Productinfo

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CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 6.2
VulDB Meta Temp Score: 6.1

VulDB Base Score: 5.3
VulDB Temp Score: 5.1
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 7.1
NVD Vector: 🔍

CVSSv2info

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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
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Exploitinginfo

Class: Integer overflow
CWE: CWE-190 / CWE-189
CAPEC: 🔍
ATT&CK: 🔍

Physical: Partially
Local: Yes
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 100013
Nessus Name: Fedora 25 : ghostscript (2017-c85c0e5637)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

OpenVAS ID: 867773
OpenVAS Name: Fedora Update for ghostscript FEDORA-2017-c85c0e5637
OpenVAS File: 🔍
OpenVAS Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

Interest: 🔍
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Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

Reaction Time: 🔍
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Timelineinfo

03/30/2017 🔍
04/03/2017 +4 days 🔍
04/16/2017 +13 days 🔍
04/16/2017 +0 days 🔍
04/17/2017 +1 days 🔍
04/17/2017 +0 days 🔍
05/06/2017 +19 days 🔍
05/08/2017 +2 days 🔍
11/29/2022 +2031 days 🔍

Sourcesinfo

Vendor: artifex.com

Advisory: FEDORA-2017-c85c0e5637
Status: Confirmed

CVE: CVE-2017-7885 (🔍)
GCVE (CVE): GCVE-0-2017-7885
GCVE (VulDB): GCVE-100-99908

OVAL: 🔍

SecurityFocus: 97410 - Ghostscript 'base/gxht_thresh.c' Heap Buffer Overflow Vulnerability
OSVDB: - CVE-2017-7885 - Artifex - jbig2dec - Buffer Overflow Issue

See also: 🔍

Entryinfo

Created: 04/17/2017 11:37
Updated: 11/29/2022 14:41
Changes: 04/17/2017 11:37 (77), 08/31/2020 16:08 (6), 11/29/2022 14:41 (4)
Complete: 🔍
Cache ID: 216::103

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