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Vulnerability record · CVE-2016-4912 · published 27 March 2017

CVE-2016-4912: Openslp null pointer dereference vulnerability

Openslp · Openslp

The _xrealloc function in xlsp_xmalloc.c in OpenSLP 2.0.0 allows remote attackers to cause a denial of service (NULL pointer dereference and crash) via a large number of crafted packets, which triggers a memory allocation failure.

7.5 CVSS 3.0 High EPSS 5.4% · top 7.6% CWE-476 · NULL pointer dereference
7.5CVSS 3.0 base score, v2 5.0
5.4%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
8References, 2 tagged exploit
17 Jun 2026Last modified by NVD

Description

The _xrealloc function in xlsp_xmalloc.c in OpenSLP 2.0.0 allows remote attackers to cause a denial of service (NULL pointer dereference and crash) via a large number of crafted packets, which triggers a memory allocation failure.

CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
http://www.openwall.com/lists/oss-security/2016/05/18/6 Mailing ListThird Party Advisory
http://www.securitytracker.com/id/1035916 Third Party AdvisoryVDB Entry
https://bugzilla.redhat.com/show_bug.cgi?id=1329295 ExploitIssue TrackingThird Party AdvisoryVDB Entry
https://security.gentoo.org/glsa/201707-05
http://www.openwall.com/lists/oss-security/2016/05/18/6 Mailing ListThird Party Advisory
http://www.securitytracker.com/id/1035916 Third Party AdvisoryVDB Entry
https://bugzilla.redhat.com/show_bug.cgi?id=1329295 ExploitIssue TrackingThird Party AdvisoryVDB Entry
https://security.gentoo.org/glsa/201707-05

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Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

9.8CVE-2019-5544OpenSLP heap out-of-bounds write in VMware ESXi and Horizon DaaSOpenSLP as shipped in VMware ESXi and Horizon DaaS contains a heap overwrite (out-of-bounds write) flaw. VMware rates it Critical with a maximum CVSS…KEVEPSS 97%analysed9.8CVE-2017-17833Openslp memory buffer overflow vulnerabilityOpenSLP releases in the 1.0.2 and 1.1.0 code streams have a heap-related memory corruption issue which may manifest itself as a denial-of-service or …EPSS 3.8%9.8CVE-2016-7567Openslp memory buffer overflow vulnerabilityBuffer overflow in the SLPFoldWhiteSpace function in common/slp_compare.c in OpenSLP 2.0 allows remote attackers to have unspecified impact via a cra…EPSS 12%7.5CVE-2012-4428Openslp out-of-bounds read vulnerabilityopenslp: SLPIntersectStringList()' Function has a DoS vulnerabilityEPSS 9.6%7.5CVE-2015-5177Openslp double free vulnerabilityDouble free vulnerability in the SLPDKnownDAAdd function in slpd/slpd_knownda.c in OpenSLP 1.2.1 allows remote attackers to cause a denial of service…EPSS 6.3%7.5CVE-2005-0769Openslp vulnerabilityMultiple buffer overflows in OpenSLP before 1.1.5 allow remote attackers to have an unknown impact via malformed SLP packets.EPSS 2.6%5.0CVE-2010-3609Openslp vulnerabilityThe extension parser in slp_v2message.c in OpenSLP 1.2.1, and other versions before SVN revision 1647, as used in Service Location Protocol daemon (S…EPSS 17%2.1CVE-2003-0875Openslp vulnerabilitySymbolic link vulnerability in the slpd script slpd.all_init for OpenSLP before 1.0.11 allows local users to overwrite arbitrary files via the route.…EPSS 0.30%

Source: NIST National Vulnerability Database (record CVE-2016-4912), CISA KEV, FIRST EPSS (scores of 2026-09-27). This page is refreshed as NVD updates the record.