libcdio up to 0.9 ISO File rock.c realloc_symlink null pointer dereference

CVSS Meta Temp Score
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CTI Interest Score
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6.8$0-$5k0.00

Summaryinfo

A vulnerability marked as problematic has been reported in libcdio up to 0.9. Impacted is the function realloc_symlink of the file rock.c of the component ISO File Handler. The manipulation leads to null pointer dereference. This vulnerability is traded as CVE-2017-18199. It is possible to initiate the attack remotely. There is no exploit available. It is suggested to upgrade the affected component.

Detailsinfo

A vulnerability, which was classified as critical, has been found in libcdio up to 0.9. This issue affects the function realloc_symlink of the file rock.c of the component ISO File Handler. The manipulation with an unknown input leads to a null pointer dereference vulnerability. Using CWE to declare the problem leads to CWE-476. A NULL pointer dereference occurs when the application dereferences a pointer that it expects to be valid, but is NULL, typically causing a crash or exit. Impacted is confidentiality, integrity, and availability. The summary by CVE is:

realloc_symlink in rock.c in GNU libcdio before 1.0.0 allows remote attackers to cause a denial of service (NULL Pointer Dereference) via a crafted iso file.

The bug was discovered 10/23/2017. The weakness was shared 02/24/2018 (Website). The advisory is shared at ftp.gnu.org. The identification of this vulnerability is CVE-2017-18199 since 02/23/2018. The attack may be initiated remotely. No form of authentication is needed for a successful exploitation. Technical details are known, but no exploit is available.

The vulnerability was handled as a non-public zero-day exploit for at least 124 days. During that time the estimated underground price was around $0-$5k. The vulnerability scanner Nessus provides a plugin with the ID 107162 (Fedora 27 : libcdio (2018-30a8492364)), 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 237023 (Red Hat Update for libcdio (RHSA-2018:3246)).

Upgrading to version 1.0.0 eliminates this vulnerability. A possible mitigation has been published 2 weeks after the disclosure of the vulnerability.

The vulnerability is also documented in the databases at Tenable (107162) and SecurityFocus (BID 103202†). The entries VDB-113788 and VDB-113834 are related to this item. If you want to get the best quality for vulnerability data then you always have to consider VulDB.

Productinfo

Name

Version

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 6.9
VulDB Meta Temp Score: 6.8

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

NVD Base Score: 6.5
NVD Vector: 🔍

CVSSv2info

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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Null pointer dereference
CWE: CWE-476 / CWE-404
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 107162
Nessus Name: Fedora 27 : libcdio (2018-30a8492364)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

OpenVAS ID: 802805
OpenVAS Name: Fedora Update for libcdio FEDORA-2018-199e6065ee
OpenVAS File: 🔍
OpenVAS Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

Reaction Time: 🔍
0-Day Time: 🔍
Exposure Time: 🔍

Upgrade: libcdio 1.0.0

Timelineinfo

10/23/2017 🔍
02/22/2018 +122 days 🔍
02/23/2018 +1 days 🔍
02/24/2018 +1 days 🔍
02/24/2018 +0 days 🔍
02/24/2018 +0 days 🔍
03/06/2018 +10 days 🔍
03/07/2018 +1 days 🔍
02/10/2023 +1801 days 🔍

Sourcesinfo

Advisory: FEDORA-2018-30a8492364
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2017-18199 (🔍)
GCVE (CVE): GCVE-0-2017-18199
GCVE (VulDB): GCVE-100-113789
SecurityFocus: 103202 - GNU libcdio 'rock.c' Denial of Service Vulnerability

See also: 🔍

Entryinfo

Created: 02/24/2018 20:11
Updated: 02/10/2023 08:55
Changes: 02/24/2018 20:11 (78), 01/08/2020 14:05 (5), 02/10/2023 08:51 (4), 02/10/2023 08:55 (1)
Complete: 🔍
Cache ID: 216::103

If you want to get the best quality for vulnerability data then you always have to consider VulDB.

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