rpcbind Daemon PMAP_CALLIT use after free

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 rpcbind. It has been classified as problematic. This impacts the function PMAP_CALLIT of the component Daemon. Performing a manipulation results in use after free. This vulnerability was named CVE-2015-7236. There is no available exploit. It is suggested to install a patch to address this issue.

Detailsinfo

A vulnerability was found in rpcbind (unknown version). It has been classified as problematic. This affects the function PMAP_CALLIT of the component Daemon. The manipulation with an unknown input leads to a use after free vulnerability. CWE is classifying the issue as CWE-416. Referencing memory after it has been freed can cause a program to crash, use unexpected values, or execute code. This is going to have an impact on availability. The summary by CVE is:

Use-after-free vulnerability in xprt_set_caller in rpcb_svc_com.c in rpcbind 0.2.1 and earlier allows remote attackers to cause a denial of service (daemon crash) via crafted packets, involving a PMAP_CALLIT code.

The weakness was presented 09/18/2015 as Bug 1264345 as confirmed bug report (Bugzilla). The advisory is shared at bugzilla.redhat.com. This vulnerability is uniquely identified as CVE-2015-7236 since 09/17/2015. It is possible to initiate the attack remotely. No form of authentication is needed for exploitation. Technical details are known, but no exploit is available.

We expect the 0-day to have been worth approximately $25k-$100k. The vulnerability scanner Nessus provides a plugin with the ID 86021 (Debian DLA-311-1 : rpcbind security update), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Debian Local Security Checks. The commercial vulnerability scanner Qualys is able to test this issue with plugin 124884 (Oracle Solaris 10 Critical Patch Update Multiple Vulnerabilities (CPUAPR2016)).

Applying a patch is able to eliminate this problem. The bugfix is ready for download at bugzilla.redhat.com. A possible mitigation has been published immediately after the disclosure of the vulnerability.

The vulnerability is also documented in the databases at X-Force (106714), Tenable (86021), SecurityFocus (BID 76771†) and Vulnerability Center (SBV-53337†). Further details are available at spinics.net. See VDB-12776, VDB-82623, VDB-82615 and VDB-82630 for similar entries. Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Affected

  • Linux

Productinfo

Name

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 6.4
VulDB Meta Temp Score: 6.0

VulDB Base Score: 5.3
VulDB Temp Score: 4.6
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 7.5
NVD Vector: 🔍

CVSSv2info

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VulDB Base Score: 🔍
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Exploitinginfo

Class: Use after free
CWE: CWE-416 / CWE-119
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Unproven

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 86021
Nessus Name: Debian DLA-311-1 : rpcbind security update
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍

OpenVAS ID: 703366
OpenVAS Name: Debian Security Advisory DSA 3366-1 (rpcbind - security update)
OpenVAS File: 🔍
OpenVAS Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Patch
Status: 🔍

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

Patch: bugzilla.redhat.com

Timelineinfo

09/17/2015 🔍
09/17/2015 +0 days 🔍
09/18/2015 +1 days 🔍
09/18/2015 +0 days 🔍
09/21/2015 +3 days 🔍
09/30/2015 +9 days 🔍
10/01/2015 +1 days 🔍
10/12/2015 +11 days 🔍
06/19/2022 +2442 days 🔍

Sourcesinfo

Advisory: Bug 1264345
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2015-7236 (🔍)
GCVE (CVE): GCVE-0-2015-7236
GCVE (VulDB): GCVE-100-78153

OVAL: 🔍

X-Force: 106714 - rpcbind PMAP_CALLIT denial of service
SecurityFocus: 76771 - rpcbind 'rpcb_svc_com.c' Remote Memory Corruption Vulnerability
SecurityTracker: 1033673
Vulnerability Center: 53337 - rpcbind <=0.2.1 Remote DoS Related to RMAP_CALLIT, Medium

Misc.: 🔍
See also: 🔍

Entryinfo

Created: 09/30/2015 10:47
Updated: 06/19/2022 16:35
Changes: 09/30/2015 10:47 (71), 02/13/2018 07:19 (10), 06/19/2022 16:20 (3), 06/19/2022 16:28 (11), 06/19/2022 16:35 (1)
Complete: 🔍
Cache ID: 216:3AA:103

Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

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