CVE-2018-12584: The ConnectionBase::preparseNewBytes function in resip/stack/ConnectionBase.cxx in reSIProcate through 1.10.2

Q: How do I fix CVE-2018-12584?

resiprocate: upgrade to newer than 1.10.2; debian linux: mitigate or apply the listed mitigation. Exact commands for each OS are on this page.

Q: Is CVE-2018-12584 being exploited?

CVE-2018-12584 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

Q: What does CVE-2018-12584 affect?

CVE-2018-12584 affects resiprocate, debian linux. Severity is critical (CVSS 9.8). The ConnectionBase::preparseNewBytes function in resip/stack/ConnectionBase.cxx in reSIProcate through 1.10.2 allows remote attackers to cause a denial of service (buffer overflow) or possibly execute arbitrary code when TLS communication i

Q: How urgent is CVE-2018-12584?

Priority 74/100. Critical severity; EPSS top 2%: very likely to be exploited; Public exploit reference; Remotely exploitable, no login, no user action; On your watchlist

This week

CRITICAL 9.8REMOTEWATCHLISTUPGRADEMITIGATE

CVE-2018-12584 is a critical-severity flaw (CVSS 9.8) affecting resiprocate, debian linux. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

The ConnectionBase::preparseNewBytes function in resip/stack/ConnectionBase.cxx in reSIProcate through 1.10.2 allows remote attackers to cause a denial of service (buffer overflow) or possibly execute arbitrary code when TLS communication is enabled.

Why this priority

Critical severity
EPSS top 2%: very likely to be exploited
Public exploit reference
Remotely exploitable, no login, no user action
On your watchlist

A fixed release or distro patch exists.

Risk facts

CVSS score	9.8 (Critical)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	None
User interaction	None
EPSS exploit chance	23.7% (top 2%)
CISA exploited list	No
Weakness	CWE-120
Published	2018-07-16
Last modified	2026-06-17

Publisher (CNA): MITRE · Vendor: debian · resiprocate

Last updated 2026-06-17 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2018-07-16 20:29 UTCPublished CVE record published
2026-06-17 01:38 UTCUpdated Record last modified

resiprocate resiprocate UPGRADE

Affected: <= 1.10.2

Fixed in: newer than 1.10.2

Safe to downgrade to: no unaffected older release

1. Check installed version

apt-cache policy resiprocate || rpm -q resiprocate || resiprocate --version

2. UPGRADE to newer than 1.10.2 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade resiprocate

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade resiprocate

Note

Distros often backport fixes without changing the version number. Confirm with the distro advisory or changelog.

debian debian linux MITIGATE

Affected: 8.0 · 9.0

Fixed in: no fixed release known

Safe to downgrade to: a release before 8.0

Check your OS release

cat /etc/os-release; uname -r

Debian / Ubuntu

sudo apt update && sudo apt full-upgrade

RHEL / Amazon Linux / Fedora

sudo dnf upgrade --refresh

Windows

Install the latest cumulative update from Windows Update

If no patch exists yet

OS downgrades are not safe. Apply the vendor mitigation from the advisory and restrict exposure.

Exact fixes by distribution

A distro patch exists: prefer upgrading over downgrading.

Fedora 46 · root · FIXED · 6.40.04-6.fc46 · FEDORA-2026-deac340022 · source

sudo dnf upgrade --advisory=FEDORA-2026-deac340022

Fedora ELN · man-pages · FIXED · 6.20-1.eln159 · FEDORA-2026-f1f5fb11b4 · source

sudo dnf upgrade --advisory=FEDORA-2026-f1f5fb11b4

Public exploits and detection

Public code exists for this CVE. Treat unpatched systems as at risk, and only run PoCs in a lab.

Write-up: packetstormsecurity.com/files/148856/reSIProcate-1.10.2-Heap-Overflow.html
Write-up: www.exploit-db.com/exploits/45174/
Exploit-DB: reSIProcate 1.10.2 - Heap Overflow

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2018-12584?

resiprocate: upgrade to newer than 1.10.2; debian linux: mitigate or apply the listed mitigation. Exact commands for each OS are on this page.

Is CVE-2018-12584 being exploited?

CVE-2018-12584 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2018-12584 affect?

CVE-2018-12584 affects resiprocate, debian linux. Severity is critical (CVSS 9.8). The ConnectionBase::preparseNewBytes function in resip/stack/ConnectionBase.cxx in reSIProcate through 1.10.2 allows remote attackers to cause a denial of service (buffer overflow) or possibly execute arbitrary code when TLS communication i

How urgent is CVE-2018-12584?

Priority 74/100. Critical severity; EPSS top 2%: very likely to be exploited; Public exploit reference; Remotely exploitable, no login, no user action; On your watchlist

Software pages

Debian vulnerabilities

Related CVEs

CVE-2017-9454 HIGH 7.5 UPGRADE Buffer overflow in the ares_parse_a_reply function in the embedded ares library in ReSIProcate before 1.12.0 a
CVE-2017-11521 HIGH 7.5 DOWNGRADE MITIGATE The SdpContents::Session::Medium::parse function in resip/stack/SdpContents.cxx in reSIProcate 1.10.2 allows r

References

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