CVE-2015-5177

Exp

Double 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 (crash) via a crafted package.

Published: 2017-10-22 Last update: 2026-05-13 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2015-5177 is rated High Exploit Risk (82.4/100): CVSS High severity, with high exploitation likelihood (EPSS 6.31%, 93th percentile). 1 public exploit reference(s) are indexed (Exploit-DB). EPSS rose +5.09% over the last day, indicating growing attacker interest. Public exploits are available—assess exposure, apply mitigations, and prioritize patching.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

Public exploit references (Exploit-DB) for CVE-2015-5177

EDB-ID Source Kind Published Link
— nvd_ref exploit_tag Exploit-DB ↗

Exploit prediction scoring system (EPSS) score for CVE-2015-5177

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

# Date Old EPSS score New EPSS score Delta (New - Old)
1 2026-06-15 1.22% 6.31% +5.09%
2 2026-05-05 1.26% 1.22% -0.03%
3 2026-03-04 — 1.26% —

Full EPSS history (41 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2015-5177

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
7.5 3.0 HIGH
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H Click to expand
Attack vector (AV:N)
Could be attacked over the internet or any normal routed network—not just someone sitting at the machine.
Attack complexity (AC:L)
Once they can reach the bug, pulling it off is straightforward—no weird race conditions or rare setup.
Privileges required (PR:N)
No account or special rights needed—anonymous or random user is enough.
User interaction (UI:N)
Nobody has to click “OK” or open a trap file; it can work without a victim helping.
Scope (S:U)
Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems.
Confidentiality (C:N)
Doesn’t really leak secrets in a meaningful way.
Integrity (I:N)
Data isn’t meaningfully altered or forged.
Availability (A:H)
Could take the service down hard or make it unusable for people who depend on it.
 3.9 3.6 [email protected]
5.0 2.0 MEDIUM
AV:N/AC:L/Au:N/C:N/I:N/A:P Click to expand
Access vector (AV:N)
Can be exploited remotely over network reachability.
Access complexity (AC:L)
Exploitation conditions are straightforward and predictable.
Authentication (AU:N)
No authentication is required.
Confidentiality impact (C:N)
No confidentiality impact.
Integrity impact (I:N)
No integrity impact.
Availability impact (A:P)
Partial availability impact.
 10.0 2.9 [email protected]

Weakness enumeration for CVE-2015-5177

OS Trackers for CVE-2015-5177

vendor priority summary link
redhat medium — https://access.redhat.com/security/cve/CVE-2015-5177
ubuntu medium CVE-2015-5177 medium priority: Ubuntu including 1 source packages (openslp-dfsg), 4 status rows across 4 suites (precise, trusty, upstream, vivid): released 4. https://ubuntu.com/security/CVE-2015-5177

Affected software / configurations for CVE-2015-5177

Vendor Product Version Raw CPE
openslp openslp 1.2.1 cpe:2.3:a:openslp:openslp:1.2.1:*:*:*:*:*:*:*
debian debian_linux 7.0 cpe:2.3:o:debian:debian_linux:7.0:*:*:*:*:*:*:*
debian debian_linux 8.0 cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:*

References for CVE-2015-5177

URL Tags
http://sourceforge.net/p/openslp/mercurial/ci/2bc15d0494f886d9c4fe342d23bc160605aea51d/ Patch Third Party Advisory
http://www.securityfocus.com/bid/76635 Third Party Advisory VDB Entry
http://www.securitytracker.com/id/1033719 Third Party Advisory VDB Entry
https://bugzilla.redhat.com/show_bug.cgi?id=1251064 Exploit Issue Tracking Patch Third Party Advisory VDB Entry
https://www.debian.org/security/2015/dsa-3353 Third Party Advisory
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