CVE catalog
CVE-2018-6485
glibc: CVE-2018-6485
- Severity
- Medium · CVSS 5.6
CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:L - Published
- Source
- [NVD] · [CVE record]
- EPSS
- 4.69% · Oct 22, 2026
An integer overflow in the implementation of the posix_memalign in memalign functions in the GNU C Library (aka glibc or libc6) 2.26 and earlier could cause these functions to return a pointer to a heap area that is too small, potentially leading to heap corruption.
Vulnerable and fixed packages
Distribution-reported package versions and fixes. These do not depend on matching against the OpenFactory package catalog.
| Distribution | Package | Release | Version | Status |
|---|---|---|---|---|
| Debian | glibc | sid | 2.43-7 | fixed |
| Debian | glibc | forky | 2.43-7 | fixed |
| Debian | glibc | trixie | 2.41-12+deb13u4 | fixed |
| Debian | glibc | bookworm | 2.36-9+deb12u14 | fixed |
| Debian | glibc | bookworm-security | 2.36-9+deb12u7 | fixed |
| Ubuntu | eglibc | pro | 2.17-93ubuntu4 | vulnerable |
| Ubuntu | eglibc | pro | 2.18-0ubuntu1 | vulnerable |
| Ubuntu | eglibc | pro | 2.18-0ubuntu2 | vulnerable |
| Ubuntu | eglibc | pro | 2.18-0ubuntu4 | vulnerable |
| Ubuntu | eglibc | pro | 2.18-0ubuntu5 | vulnerable |
| Ubuntu | eglibc | pro | 2.18-0ubuntu6 | vulnerable |
| Ubuntu | eglibc | pro | 2.18-0ubuntu7 | vulnerable |
| Ubuntu | eglibc | pro | 2.19-0ubuntu2 | vulnerable |
| Ubuntu | eglibc | pro | 2.19-0ubuntu3 | vulnerable |
| Ubuntu | eglibc | pro | 2.19-0ubuntu4 | vulnerable |
| Ubuntu | eglibc | pro | 2.19-0ubuntu5 | vulnerable |
| Ubuntu | eglibc | pro | 2.19-0ubuntu6 | vulnerable |
| Ubuntu | eglibc | pro | 2.19-0ubuntu6.1 | vulnerable |
| Ubuntu | eglibc | pro | 2.19-0ubuntu6.3 | vulnerable |
| Ubuntu | eglibc | pro | 2.19-0ubuntu6.4 | vulnerable |
| Ubuntu | eglibc | pro | 2.19-0ubuntu6.5 | vulnerable |
| Ubuntu | eglibc | pro | 2.19-0ubuntu6.6 | vulnerable |
| Ubuntu | eglibc | pro | 2.19-0ubuntu6.7 | vulnerable |
| Ubuntu | eglibc | pro | 2.19-0ubuntu6.8 | vulnerable |
| Ubuntu | eglibc | pro | 2.19-0ubuntu6.9 | vulnerable |
| Ubuntu | eglibc | pro | 2.19-0ubuntu6.10 | vulnerable |
| Ubuntu | eglibc | pro | 2.19-0ubuntu6.11 | vulnerable |
| Ubuntu | eglibc | pro | 2.19-0ubuntu6.13 | vulnerable |
| Ubuntu | eglibc | pro | 2.19-0ubuntu6.14 | vulnerable |
| Ubuntu | eglibc | pro | 2.19-0ubuntu6.15 | vulnerable |
| Ubuntu | eglibc | pro | 2.19-0ubuntu6.15+esm1 | fixed |
| Ubuntu | glibc | 16.04 | 2.21-0ubuntu4 | vulnerable |
| Ubuntu | glibc | 16.04 | 2.21-0ubuntu5 | vulnerable |
| Ubuntu | glibc | 16.04 | 2.21-0ubuntu6 | vulnerable |
| Ubuntu | glibc | 16.04 | 2.23-0ubuntu1 | vulnerable |
| Ubuntu | glibc | 16.04 | 2.23-0ubuntu2 | vulnerable |
| Ubuntu | glibc | 16.04 | 2.23-0ubuntu3 | vulnerable |
| Ubuntu | glibc | 16.04 | 2.23-0ubuntu4 | vulnerable |
| Ubuntu | glibc | 16.04 | 2.23-0ubuntu5 | vulnerable |
| Ubuntu | glibc | 16.04 | 2.23-0ubuntu6 | vulnerable |
| Ubuntu | glibc | 16.04 | 2.23-0ubuntu7 | vulnerable |
| Ubuntu | glibc | 16.04 | 2.23-0ubuntu9 | vulnerable |
| Ubuntu | glibc | 16.04 | 2.23-0ubuntu10 | vulnerable |
| Ubuntu | glibc | 16.04 | 2.23-0ubuntu11 | vulnerable |
| Ubuntu | glibc | 16.04 | 2.23-0ubuntu11.2 | fixed |
| Ubuntu | eglibc | pro | 2.17-93ubuntu4 | vulnerable |
| Ubuntu | eglibc | pro | 2.18-0ubuntu1 | vulnerable |
| Ubuntu | eglibc | pro | 2.18-0ubuntu2 | vulnerable |
| Ubuntu | eglibc | pro | 2.18-0ubuntu4 | vulnerable |
| Ubuntu | eglibc | pro | 2.18-0ubuntu5 | vulnerable |
| Ubuntu | eglibc | pro | 2.18-0ubuntu6 | vulnerable |
| Ubuntu | eglibc | pro | 2.18-0ubuntu7 | vulnerable |
| Ubuntu | eglibc | pro | 2.19-0ubuntu2 | vulnerable |
| Ubuntu | eglibc | pro | 2.19-0ubuntu3 | vulnerable |
| Ubuntu | eglibc | pro | 2.19-0ubuntu4 | vulnerable |
| Ubuntu | eglibc | pro | 2.19-0ubuntu5 | vulnerable |
| Ubuntu | eglibc | pro | 2.19-0ubuntu6 | vulnerable |
| Ubuntu | eglibc | pro | 2.19-0ubuntu6.1 | vulnerable |
| Ubuntu | eglibc | pro | 2.19-0ubuntu6.3 | vulnerable |
| Ubuntu | eglibc | pro | 2.19-0ubuntu6.4 | vulnerable |
| Ubuntu | eglibc | pro | 2.19-0ubuntu6.5 | vulnerable |
| Ubuntu | eglibc | pro | 2.19-0ubuntu6.6 | vulnerable |
| Ubuntu | eglibc | pro | 2.19-0ubuntu6.7 | vulnerable |
| Ubuntu | eglibc | pro | 2.19-0ubuntu6.8 | vulnerable |
| Ubuntu | eglibc | pro | 2.19-0ubuntu6.9 | vulnerable |
| Ubuntu | eglibc | pro | 2.19-0ubuntu6.10 | vulnerable |
| Ubuntu | eglibc | pro | 2.19-0ubuntu6.11 | vulnerable |
| Ubuntu | eglibc | pro | 2.19-0ubuntu6.13 | vulnerable |
| Ubuntu | eglibc | pro | 2.19-0ubuntu6.14 | vulnerable |
| Ubuntu | eglibc | pro | 2.19-0ubuntu6.15 | vulnerable |
| Ubuntu | eglibc | pro | 2.19-0ubuntu6.15+esm1 | fixed |
Fixed-version evidence
| Distribution | Package | Type | Release | Fixed version | Urgency | Origin | Bugs |
|---|---|---|---|---|---|---|---|
| Debian | glibc | source | sid | 2.27-1 | not yet assigned | Not reported | [878159] |
| Debian | glibc | source | forky | 2.27-1 | not yet assigned | Not reported | [878159] |
| Debian | glibc | source | trixie | 2.27-1 | not yet assigned | Not reported | [878159] |
| Debian | glibc | source | bookworm | 2.27-1 | not yet assigned | Not reported | [878159] |
| Ubuntu | eglibc | deb | pro | 2.19-0ubuntu6.15+esm1 | Not reported | UBUNTU-CVE-2018-6485 | Not reported |
| Ubuntu | glibc | deb | 16.04 | 2.23-0ubuntu11.2 | Not reported | UBUNTU-CVE-2018-6485 | Not reported |
| Ubuntu | eglibc | deb | pro | 2.19-0ubuntu6.15+esm1 | Not reported | USN-4218-1 | Not reported |
OpenFactory catalog packages
[Debian 12 (Bookworm)]
- [glibc-doc]Fixed
Source package: [glibc]
Details (4)
2.36-9+deb12u14· all · bookwormFixed · Fixed:
2.27-1dsa · glibc · debian · bookworm; dsa · glibc · debian · 12
2.36-9+deb12u14· all · bookwormFixed · Fixed:
2.27-1dsa · glibc · debian · bookworm; dsa · glibc · debian · 12
2.36-9+deb12u7· all · bookworm-securityFixed · Fixed:
2.27-1dsa · glibc · debian · bookworm; dsa · glibc · debian · 12
2.36-9+deb12u7· all · bookworm-securityFixed · Fixed:
2.27-1dsa · glibc · debian · bookworm; dsa · glibc · debian · 12
- [glibc-source]Fixed
Source package: [glibc]
Details (4)
2.36-9+deb12u14· all · bookwormFixed · Fixed:
2.27-1dsa · glibc · debian · bookworm; dsa · glibc · debian · 12
2.36-9+deb12u14· all · bookwormFixed · Fixed:
2.27-1dsa · glibc · debian · bookworm; dsa · glibc · debian · 12
2.36-9+deb12u7· all · bookworm-securityFixed · Fixed:
2.27-1dsa · glibc · debian · bookworm; dsa · glibc · debian · 12
2.36-9+deb12u7· all · bookworm-securityFixed · Fixed:
2.27-1dsa · glibc · debian · bookworm; dsa · glibc · debian · 12
- [libc6]Fixed
Source package: [glibc]
Details (4)
2.36-9+deb12u14· amd64 · bookwormFixed · Fixed:
2.27-1dsa · glibc · debian · bookworm; dsa · glibc · debian · 12
2.36-9+deb12u14· arm64 · bookwormFixed · Fixed:
2.27-1dsa · glibc · debian · bookworm; dsa · glibc · debian · 12
2.36-9+deb12u7· amd64 · bookworm-securityFixed · Fixed:
2.27-1dsa · glibc · debian · bookworm; dsa · glibc · debian · 12
2.36-9+deb12u7· arm64 · bookworm-securityFixed · Fixed:
2.27-1dsa · glibc · debian · bookworm; dsa · glibc · debian · 12
- [libc6-dbg]Fixed
Source package: [glibc]
Details (4)
2.36-9+deb12u14· amd64 · bookwormFixed · Fixed:
2.27-1dsa · glibc · debian · bookworm; dsa · glibc · debian · 12
2.36-9+deb12u14· arm64 · bookwormFixed · Fixed:
2.27-1dsa · glibc · debian · bookworm; dsa · glibc · debian · 12
2.36-9+deb12u7· amd64 · bookworm-securityFixed · Fixed:
2.27-1dsa · glibc · debian · bookworm; dsa · glibc · debian · 12
2.36-9+deb12u7· arm64 · bookworm-securityFixed · Fixed:
2.27-1dsa · glibc · debian · bookworm; dsa · glibc · debian · 12
- [libc6-dev]Fixed
Source package: [glibc]
Details (4)
2.36-9+deb12u14· amd64 · bookwormFixed · Fixed:
2.27-1dsa · glibc · debian · bookworm; dsa · glibc · debian · 12
2.36-9+deb12u14· arm64 · bookwormFixed · Fixed:
2.27-1dsa · glibc · debian · bookworm; dsa · glibc · debian · 12
2.36-9+deb12u7· amd64 · bookworm-securityFixed · Fixed:
2.27-1dsa · glibc · debian · bookworm; dsa · glibc · debian · 12
2.36-9+deb12u7· arm64 · bookworm-securityFixed · Fixed:
2.27-1dsa · glibc · debian · bookworm; dsa · glibc · debian · 12
- [libc6-dev-i386]Fixed
Source package: [glibc]
Details (2)
2.36-9+deb12u14· amd64 · bookwormFixed · Fixed:
2.27-1dsa · glibc · debian · bookworm; dsa · glibc · debian · 12
2.36-9+deb12u7· amd64 · bookworm-securityFixed · Fixed:
2.27-1dsa · glibc · debian · bookworm; dsa · glibc · debian · 12
- [libc6-dev-x32]Fixed
Source package: [glibc]
Details (2)
2.36-9+deb12u14· amd64 · bookwormFixed · Fixed:
2.27-1dsa · glibc · debian · bookworm; dsa · glibc · debian · 12
2.36-9+deb12u7· amd64 · bookworm-securityFixed · Fixed:
2.27-1dsa · glibc · debian · bookworm; dsa · glibc · debian · 12
- [libc6-i386]Fixed
Source package: [glibc]
Details (2)
2.36-9+deb12u14· amd64 · bookwormFixed · Fixed:
2.27-1dsa · glibc · debian · bookworm; dsa · glibc · debian · 12
2.36-9+deb12u7· amd64 · bookworm-securityFixed · Fixed:
2.27-1dsa · glibc · debian · bookworm; dsa · glibc · debian · 12
- [libc6-x32]Fixed
Source package: [glibc]
Details (2)
2.36-9+deb12u14· amd64 · bookwormFixed · Fixed:
2.27-1dsa · glibc · debian · bookworm; dsa · glibc · debian · 12
2.36-9+deb12u7· amd64 · bookworm-securityFixed · Fixed:
2.27-1dsa · glibc · debian · bookworm; dsa · glibc · debian · 12
- [libc-bin]Fixed
Source package: [glibc]
Details (4)
2.36-9+deb12u14· amd64 · bookwormFixed · Fixed:
2.27-1dsa · glibc · debian · bookworm; dsa · glibc · debian · 12
2.36-9+deb12u14· arm64 · bookwormFixed · Fixed:
2.27-1dsa · glibc · debian · bookworm; dsa · glibc · debian · 12
2.36-9+deb12u7· amd64 · bookworm-securityFixed · Fixed:
2.27-1dsa · glibc · debian · bookworm; dsa · glibc · debian · 12
2.36-9+deb12u7· arm64 · bookworm-securityFixed · Fixed:
2.27-1dsa · glibc · debian · bookworm; dsa · glibc · debian · 12
- [libc-dev-bin]Fixed
Source package: [glibc]
Details (4)
2.36-9+deb12u14· amd64 · bookwormFixed · Fixed:
2.27-1dsa · glibc · debian · bookworm; dsa · glibc · debian · 12
2.36-9+deb12u14· arm64 · bookwormFixed · Fixed:
2.27-1dsa · glibc · debian · bookworm; dsa · glibc · debian · 12
2.36-9+deb12u7· amd64 · bookworm-securityFixed · Fixed:
2.27-1dsa · glibc · debian · bookworm; dsa · glibc · debian · 12
2.36-9+deb12u7· arm64 · bookworm-securityFixed · Fixed:
2.27-1dsa · glibc · debian · bookworm; dsa · glibc · debian · 12
- [libc-devtools]Fixed
Source package: [glibc]
Details (4)
2.36-9+deb12u14· amd64 · bookwormFixed · Fixed:
2.27-1dsa · glibc · debian · bookworm; dsa · glibc · debian · 12
2.36-9+deb12u14· arm64 · bookwormFixed · Fixed:
2.27-1dsa · glibc · debian · bookworm; dsa · glibc · debian · 12
2.36-9+deb12u7· amd64 · bookworm-securityFixed · Fixed:
2.27-1dsa · glibc · debian · bookworm; dsa · glibc · debian · 12
2.36-9+deb12u7· arm64 · bookworm-securityFixed · Fixed:
2.27-1dsa · glibc · debian · bookworm; dsa · glibc · debian · 12
- [libc-l10n]Fixed
Source package: [glibc]
Details (4)
2.36-9+deb12u14· all · bookwormFixed · Fixed:
2.27-1dsa · glibc · debian · bookworm; dsa · glibc · debian · 12
2.36-9+deb12u14· all · bookwormFixed · Fixed:
2.27-1dsa · glibc · debian · bookworm; dsa · glibc · debian · 12
2.36-9+deb12u7· all · bookworm-securityFixed · Fixed:
2.27-1dsa · glibc · debian · bookworm; dsa · glibc · debian · 12
2.36-9+deb12u7· all · bookworm-securityFixed · Fixed:
2.27-1dsa · glibc · debian · bookworm; dsa · glibc · debian · 12
- [locales]Fixed
Source package: [glibc]
Details (4)
2.36-9+deb12u14· all · bookwormFixed · Fixed:
2.27-1dsa · glibc · debian · bookworm; dsa · glibc · debian · 12
2.36-9+deb12u14· all · bookwormFixed · Fixed:
2.27-1dsa · glibc · debian · bookworm; dsa · glibc · debian · 12
2.36-9+deb12u7· all · bookworm-securityFixed · Fixed:
2.27-1dsa · glibc · debian · bookworm; dsa · glibc · debian · 12
2.36-9+deb12u7· all · bookworm-securityFixed · Fixed:
2.27-1dsa · glibc · debian · bookworm; dsa · glibc · debian · 12
- [locales-all]Fixed
Source package: [glibc]
Details (4)
2.36-9+deb12u14· amd64 · bookwormFixed · Fixed:
2.27-1dsa · glibc · debian · bookworm; dsa · glibc · debian · 12
2.36-9+deb12u14· arm64 · bookwormFixed · Fixed:
2.27-1dsa · glibc · debian · bookworm; dsa · glibc · debian · 12
2.36-9+deb12u7· amd64 · bookworm-securityFixed · Fixed:
2.27-1dsa · glibc · debian · bookworm; dsa · glibc · debian · 12
2.36-9+deb12u7· arm64 · bookworm-securityFixed · Fixed:
2.27-1dsa · glibc · debian · bookworm; dsa · glibc · debian · 12
- [nscd]Fixed
Source package: [glibc]
Details (4)
2.36-9+deb12u14· amd64 · bookwormFixed · Fixed:
2.27-1dsa · glibc · debian · bookworm; dsa · glibc · debian · 12
2.36-9+deb12u14· arm64 · bookwormFixed · Fixed:
2.27-1dsa · glibc · debian · bookworm; dsa · glibc · debian · 12
2.36-9+deb12u7· amd64 · bookworm-securityFixed · Fixed:
2.27-1dsa · glibc · debian · bookworm; dsa · glibc · debian · 12
2.36-9+deb12u7· arm64 · bookworm-securityFixed · Fixed:
2.27-1dsa · glibc · debian · bookworm; dsa · glibc · debian · 12
[Debian 13 (Trixie)]
- [glibc-doc]Fixed
Source package: [glibc]
Details (2)
2.41-12+deb13u3· all · trixieFixed · Fixed:
2.27-1dsa · glibc · debian · 13
2.41-12+deb13u3· all · trixieFixed · Fixed:
2.27-1dsa · glibc · debian · 13
- [glibc-source]Fixed
Source package: [glibc]
Details (2)
2.41-12+deb13u3· all · trixieFixed · Fixed:
2.27-1dsa · glibc · debian · 13
2.41-12+deb13u3· all · trixieFixed · Fixed:
2.27-1dsa · glibc · debian · 13
- [libc6]Fixed
Source package: [glibc]
Details (2)
2.41-12+deb13u3· amd64 · trixieFixed · Fixed:
2.27-1dsa · glibc · debian · 13
2.41-12+deb13u3· arm64 · trixieFixed · Fixed:
2.27-1dsa · glibc · debian · 13
- [libc6-dbg]Fixed
Source package: [glibc]
Details (2)
2.41-12+deb13u3· amd64 · trixieFixed · Fixed:
2.27-1dsa · glibc · debian · 13
2.41-12+deb13u3· arm64 · trixieFixed · Fixed:
2.27-1dsa · glibc · debian · 13
Observed:
References
- [https://access.redhat.com/errata/RHSA-2018:3092]
- [https://ftp.suse.com/pub/projects/security/csaf/opensuse-su-2024_10792-1.json]
- [https://osv.dev/vulnerability/DEBIAN-CVE-2018-6485]
- [https://osv.dev/vulnerability/UBUNTU-CVE-2018-6485]
- [https://osv.dev/vulnerability/USN-4218-1]
- [https://security-tracker.debian.org/tracker/CVE-2018-6485]
- [https://wid.cert-bund.de/.well-known/csaf/white/2019/wid-sec-w-2025-1212.json]
[CERT-Bund public advisories] · [Debian Security Tracker] · [FIRST EPSS] · [OSV Package Vulnerability Database] · [Red Hat security advisories and VEX] · [SUSE security advisories and VEX]