CVE-2018-19115: debian debian_linux Out-of-bounds Write
CVSS: 9.8v3.0CriticalModified
AliasesRHSA-2019:0022RHSA-2019:1792RHSA-2019:1945UBUNTU-CVE-2018-19115USN-3995-1USN-3995-2DEBIAN-CVE-2018-19115DLA-1589-1
Published 08-11-2018Last modified 05-08-2024
Vulnerability summary
CVE-2018-19115 is a critical (CVSS 9.8) Out-of-bounds Write vulnerability in debian debian_linux. EPSS estimates a 3.75% chance of exploitation in the next 30 days, higher than 89.7% of scored vulnerabilities.
CVSS score
9.8/10
010
Critical · v3.0 (NVD)EPSS score
3.75%
0%100%
Low · 0.00 pp in 30 daysKEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded
Advisory lineage
Upstream 0 · Downstream 1Timeline
- 08-11-2018PublishedVulnerability first disclosed.
- 05-08-2024Last modifiedVulnerability information updated.
Description
keepalived before 2.0.7 has a heap-based buffer overflow when parsing HTTP status codes resulting in DoS or possibly unspecified other impact, because extract_status_code in lib/html.c has no validation of the status code and instead writes an unlimited amount of data to the heap.
CVSS metrics
5 scores · 4 sources · 2 versionsCritical 9.8Preferred score · NVD (NIST)
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:HSources4 sources · 8.1–9.8
- OSV · Red hatEcosystem advisory · calculated8.1HighCVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:HDiffers
- OSV · UbuntuEcosystem advisory · calculated9.8CriticalCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- OSV · DebianEcosystem advisory · calculated9.8CriticalCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
High 7.5Preferred score · NVD (NIST)
AV:N/AC:L/Au:N/C:P/I:P/A:PSourcesSingle source
EPSS trend
Probability
3.75%
Chance of exploitation in the next 30 days
Percentile
90%
Versus all other CVEs
30-day change
0.00 pp
From 3.75% on 18-09-2026
18-09-202618-10-2026
EPSS score3.75%
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeAffected systems
Redhat7 products
- enterprise_linux_server7.0
- enterprise_linux_server_aus7.6
- enterprise_linux_server_eus7.6
- enterprise_linux_server_tus7.6
- enterprise_linux_workstation7.0
Debian2 products
- keepalived< 1:2.0.10-1 | < 1:1.2.13-1+deb8u1
- debian_linuxEOL8.0
Keepalived1 product
- keepalived< 2.0.7
Ubuntu1 product
- keepalived< 1:1.2.24-1ubuntu0.16.04.2 | < 1:1.3.9-1ubuntu0.18.04.2 | < 1:1.2.7-1ubuntu1+esm1
4 vendors · 11 products
References
22 links
lists.debian.org/debian-lts-announce/2018/11/msg00034.htmlMailing ListX Refsource MLISTThird Party Advisory- github.com/acassen/keepalived/pull/961/commits/f28015671a4b04785859d1b4b1327b367b6a10e9X Refsource MISCPatchThird Party Advisory
- access.redhat.com/errata/RHSA-2019:0022Vendor AdvisoryX Refsource REDHATThird Party AdvisoryAdvisory
