cURL up to 7.56.0 IMAP FETCH Response memory corruption

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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8.1$0-$5k0.00

Summaryinfo

A vulnerability was found in cURL up to 7.56.0. It has been declared as critical. This issue affects some unknown processing of the component IMAP FETCH Response Handler. The manipulation results in memory corruption. This vulnerability was named CVE-2017-1000257. The attack may be performed from remote. There is no available exploit. It is recommended to upgrade the affected component.

Detailsinfo

A vulnerability was found in cURL up to 7.56.0 (Network Utility Software). It has been classified as critical. Affected is some unknown processing of the component IMAP FETCH Response Handler. The manipulation with an unknown input leads to a memory corruption vulnerability. CWE is classifying the issue as CWE-119. The product performs operations on a memory buffer, but it can read from or write to a memory location that is outside of the intended boundary of the buffer. This is going to have an impact on confidentiality, integrity, and availability.

The bug was discovered 10/23/2017. The weakness was presented 10/23/2017 by Brian Carpenter as adv_20171023 as confirmed advisory (Website). The advisory is available at curl.haxx.se. This vulnerability is traded as CVE-2017-1000257 since 10/31/2017. It is possible to launch the attack remotely. The exploitation doesn't require any form of authentication. Successful exploitation requires user interaction by the victim. The technical details are unknown and an exploit is not 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 104105 (Slackware 14.0 / 14.1 / 14.2 / current : curl (SSA:2017-297-01)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Slackware Local Security Checks and running in the context l. The commercial vulnerability scanner Qualys is able to test this issue with plugin 170430 (SUSE Enterprise Linux Security Update for curl (SUSE-SU-2017:2831-1)).

Upgrading to version 7.56.1 eliminates this vulnerability. A possible mitigation has been published 1 days after the disclosure of the vulnerability.

The vulnerability is also documented in the databases at Tenable (104105), SecurityFocus (BID 101519†) and SecurityTracker (ID 1039644†). Further details are available at curl.haxx.se. If you want to get best quality of vulnerability data, you may have to visit VulDB.

Productinfo

Type

Name

Version

License

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 8.2
VulDB Meta Temp Score: 8.1

VulDB Base Score: 6.3
VulDB Temp Score: 6.0
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 9.1
NVD Vector: 🔍

ADP CISA Base Score: 9.1
ADP CISA Vector: 🔍

CVSSv2info

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

NVD Base Score: 🔍

Exploitinginfo

Class: Memory corruption
CWE: CWE-119
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: 104105
Nessus Name: Slackware 14.0 / 14.1 / 14.2 / current : curl (SSA:2017-297-01)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

OpenVAS ID: 53379
OpenVAS Name: Debian Security Advisory DSA 4007-1 (curl - security update)
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: cURL 7.56.1

Timelineinfo

10/06/2017 🔍
10/23/2017 +17 days 🔍
10/23/2017 +0 days 🔍
10/23/2017 +0 days 🔍
10/24/2017 +1 days 🔍
10/24/2017 +0 days 🔍
10/24/2017 +0 days 🔍
10/25/2017 +1 days 🔍
10/31/2017 +6 days 🔍
10/31/2017 +0 days 🔍
04/16/2026 +3088 days 🔍

Sourcesinfo

Advisory: adv_20171023
Researcher: Brian Carpenter
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2017-1000257 (🔍)
GCVE (CVE): GCVE-0-2017-1000257
GCVE (VulDB): GCVE-100-108618

OVAL: 🔍

SecurityFocus: 101519 - cURL/libcURL CVE-2017-1000257 Buffer Overflow Vulnerability
SecurityTracker: 1039644

Misc.: 🔍

Entryinfo

Created: 10/25/2017 10:02
Updated: 04/16/2026 00:00
Changes: 10/25/2017 10:02 (84), 11/30/2019 16:39 (6), 01/20/2021 17:05 (2), 04/16/2026 00:00 (26)
Complete: 🔍
Cache ID: 216::103

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

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