CVE-2018-1000140 — Out-of-bounds Write in Librelp

CWE-787 — Out-of-bounds WriteCWE-121 — Stack-based Buffer Overflow10 documents8 sources
Severity
9.8CRITICALNVD
EPSS
27.2%
top 3.61%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
9
Rsyslog LibrelpCanonical Ubuntu LinuxDebian Linux+6 more
Timeline
PublishedMar 23
Latest updateMay 13

Description

rsyslog librelp version 1.2.14 and earlier contains a Buffer Overflow vulnerability in the checking of x509 certificates from a peer that can result in Remote code execution. This attack appear to be exploitable a remote attacker that can connect to rsyslog and trigger a stack buffer overflow by sending a specially crafted x509 certificate.

CVSS vector

CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:HExploitability: 3.9 | Impact: 5.9

Affected Packages5 packages

▶Debianrsyslog/librelp< 1.2.15-1+3
▶NVDrsyslog/librelp1.2.14

Also affects: Debian Linux 8.0, 9.0, Ubuntu Linux 14.04, Enterprise Linux 6.6, 7.2, 7.3, 7.4, 7.6, 6.7, 7.5

Patches

Patch: github.com ↗Patch: github.com ↗

🔴Vulnerability Details

3
GHSA
GHSA-m73v-c2p6-943p: rsyslog librelp version 1↗2022-05-13
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OSV
CVE-2018-1000140: rsyslog librelp version 1↗2018-03-23
▶
CVEList
CVE-2018-1000140: rsyslog librelp version 1↗2018-03-23
▶

📋Vendor Advisories

4
Ubuntu
librelp vulnerability↗2021-03-15
▶
Ubuntu
librelp vulnerability↗2018-03-28
▶
Red Hat
librelp: Stack-based buffer overflow in relpTcpChkPeerName function in src/tcp.c↗2018-03-23
▶
Debian
CVE-2018-1000140: librelp - rsyslog librelp version 1.2.14 and earlier contains a Buffer Overflow vulnerabil...↗2018
▶

💬Community

2
Bugzilla
CVE-2018-1000140 librelp: Stack-based buffer overflow in relpTcpChkPeerName function in src/tcp.c↗2018-03-23
▶
Bugzilla
CVE-2018-1000140 librelp: Stack-based buffer overflow in relpTcpChkPeerName function in src/tcp.c [fedora-all]↗2018-03-23
▶
CVE-2018-1000140 — Out-of-bounds Write in Librelp | cvebase