Apache Subversion up to 1.9.2 svn Protocol libsvn_ra_svn/marshal.c read_string memory corruption

CVSS Meta Temp Score
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CTI Interest Score
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8.4$0-$5k0.00

Summaryinfo

A vulnerability categorized as critical has been discovered in Apache Subversion up to 1.9.2. This vulnerability affects the function read_string of the file libsvn_ra_svn/marshal.c of the component svn Protocol Handler. Executing a manipulation can lead to memory corruption. This vulnerability is handled as CVE-2015-5259. The attack can be executed remotely. There is not any exploit available. It is advisable to upgrade the affected component.

Detailsinfo

A vulnerability was found in Apache Subversion up to 1.9.2 (Versioning Software). It has been declared as critical. This vulnerability affects the function read_string of the file libsvn_ra_svn/marshal.c of the component svn Protocol Handler. The manipulation with an unknown input leads to a memory corruption vulnerability. The CWE definition for the vulnerability is 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. As an impact it is known to affect confidentiality, integrity, and availability. CVE summarizes:

Integer overflow in the read_string function in libsvn_ra_svn/marshal.c in Apache Subversion 1.9.x before 1.9.3 allows remote attackers to execute arbitrary code via an svn:// protocol string, which triggers a heap-based buffer overflow and an out-of-bounds read.

The weakness was released 01/08/2016 by Ivan Zhakov with VisualSVN (Website). The advisory is shared for download at securitytracker.com. This vulnerability was named CVE-2015-5259 since 07/01/2015. The attack can be initiated remotely. No form of authentication is required for a successful exploitation. There are known technical details, but no exploit is available.

The vulnerability scanner Nessus provides a plugin with the ID 87388 (FreeBSD : subversion -- multiple vulnerabilities (daadef86-a366-11e5-8b40-20cf30e32f6d)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family FreeBSD Local Security Checks and running in the context l. The commercial vulnerability scanner Qualys is able to test this issue with plugin 350027 (Amazon Linux Security Advisory for mod_dav_svn,subversion: ALAS-2016-676).

Upgrading to version 1.9.3 eliminates this vulnerability. A possible mitigation has been published even before and not after the disclosure of the vulnerability. Furthermore it is possible to detect and prevent this kind of attack with TippingPoint and the filter 22572.

The vulnerability is also documented in the databases at Tenable (87388), SecurityFocus (BID 82300†) and Vulnerability Center (SBV-55633†). Entries connected to this vulnerability are available at VDB-76952 and VDB-82389. 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: 8.6
VulDB Meta Temp Score: 8.4

VulDB Base Score: 8.6
VulDB Temp Score: 8.2
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 8.6
NVD Vector: 🔍

CVSSv2info

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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: 87388
Nessus Name: FreeBSD : subversion -- multiple vulnerabilities (daadef86-a366-11e5-8b40-20cf30e32f6d)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

OpenVAS ID: 14611
OpenVAS Name: Amazon Linux Local Check: alas-2016-676
OpenVAS File: 🔍
OpenVAS Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: Subversion 1.9.3
TippingPoint: 🔍

McAfee IPS: 🔍
McAfee IPS Version: 🔍

Fortigate IPS: 🔍

Timelineinfo

07/01/2015 🔍
12/09/2015 +161 days 🔍
12/15/2015 +6 days 🔍
12/16/2015 +1 days 🔍
12/16/2015 +0 days 🔍
01/08/2016 +23 days 🔍
01/08/2016 +0 days 🔍
01/10/2016 +2 days 🔍
01/12/2016 +2 days 🔍
07/02/2022 +2363 days 🔍

Sourcesinfo

Vendor: apache.org

Advisory: securitytracker.com⛔
Researcher: Ivan Zhakov
Organization: VisualSVN
Status: Not defined
Confirmation: 🔍

CVE: CVE-2015-5259 (🔍)
GCVE (CVE): GCVE-0-2015-5259
GCVE (VulDB): GCVE-100-80116
SecurityFocus: 82300 - Apache Subversion CVE-2015-5259 Integer Overflow Vulnerability
SecurityTracker: 1034469
Vulnerability Center: 55633 - Apache Subversion 1.9.x before 1.9.3 Remote Code Execution via an Svn:// Protocol String, High

See also: 🔍

Entryinfo

Created: 01/10/2016 20:10
Updated: 07/02/2022 14:57
Changes: 01/10/2016 20:10 (62), 06/21/2018 08:55 (30), 07/02/2022 14:57 (3)
Complete: 🔍
Cache ID: 216:CBE:103

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