Leptonica up to 1.75.3 /tmp race condition

CVSS Meta Temp Score
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CTI Interest Score
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6.0$0-$5k0.00

Summaryinfo

A vulnerability was found in Leptonica up to 1.75.3. It has been declared as critical. Affected by this vulnerability is an unknown functionality of the file /tmp. The manipulation results in race condition. This vulnerability is cataloged as CVE-2018-7441. The attack must be initiated from a local position. There is no exploit available. It is recommended to upgrade the affected component.

Detailsinfo

A vulnerability was found in Leptonica up to 1.75.3. It has been classified as critical. Affected is some unknown processing of the file /tmp. The manipulation with an unknown input leads to a race condition vulnerability. CWE is classifying the issue as CWE-362. The product contains a code sequence that can run concurrently with other code, and the code sequence requires temporary, exclusive access to a shared resource, but a timing window exists in which the shared resource can be modified by another code sequence that is operating concurrently. This is going to have an impact on confidentiality, integrity, and availability. CVE summarizes:

Leptonica through 1.75.3 uses hardcoded /tmp pathnames, which might allow local users to overwrite arbitrary files or have unspecified other impact by creating files in advance or winning a race condition, as demonstrated by /tmp/junk_split_image.ps in prog/splitimage2pdf.c.

The bug was discovered 02/15/2018. The weakness was shared 02/23/2018 (Website). The advisory is shared for download at lists.debian.org. This vulnerability is traded as CVE-2018-7441 since 02/23/2018. The attack needs to be approached locally. Required for exploitation is a authentication. There are known technical details, but no exploit is available.

The vulnerability was handled as a non-public zero-day exploit for at least 8 days. During that time the estimated underground price was around $0-$5k. The vulnerability scanner Nessus provides a plugin with the ID 120407 (Fedora 29 : leptonica / mingw-leptonica (2018-4db33b3753)), 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.

Upgrading eliminates this vulnerability. A possible mitigation has been published 12 months after the disclosure of the vulnerability.

The vulnerability is also documented in the vulnerability database at Tenable (120407). The entry VDB-113785 is related to this item. VulDB is the best source for vulnerability data and more expert information about this specific topic.

Productinfo

Name

Version

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 6.1
VulDB Meta Temp Score: 6.0

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

NVD Base Score: 7.0
NVD Vector: 🔍

CVSSv2info

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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
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Exploitinginfo

Class: Race condition
CWE: CWE-362
CAPEC: 🔍
ATT&CK: 🔍

Physical: Partially
Local: Yes
Remote: No

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 120407
Nessus Name: Fedora 29 : leptonica / mingw-leptonica (2018-4db33b3753)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

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

Timelineinfo

02/15/2018 🔍
02/23/2018 +8 days 🔍
02/23/2018 +0 days 🔍
02/23/2018 +0 days 🔍
02/24/2018 +1 days 🔍
12/30/2018 +309 days 🔍
01/03/2019 +4 days 🔍
02/10/2023 +1499 days 🔍

Sourcesinfo

Advisory: FEDORA-2018-4db33b3753
Status: Not defined

CVE: CVE-2018-7441 (🔍)
GCVE (CVE): GCVE-0-2018-7441
GCVE (VulDB): GCVE-100-113784
See also: 🔍

Entryinfo

Created: 02/24/2018 09:07
Updated: 02/10/2023 08:35
Changes: 02/24/2018 09:07 (62), 01/08/2020 13:32 (10), 02/10/2023 08:35 (4)
Complete: 🔍
Cache ID: 216::103

VulDB is the best source for vulnerability data and more expert information about this specific topic.

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