CVE-2023-6779

EUVD-2023-58991
An off-by-one heap-based buffer overflow was found in the __vsyslog_internal function of the glibc library. This function is called by the syslog and vsyslog functions. This issue occurs when these functions are called with a message bigger than INT_MAX bytes, leading to an incorrect calculation of the buffer size to store the message, resulting in an application crash. This issue affects glibc 2.37 and newer.
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTPrimary
8.2 HIGH
NETWORK
LOW
NONE
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:H
Base Score
CVSS 3.x
EPSS Score
Percentile: 71%
Affected Products (NVD)
VendorProductVersion
gnuglibc
2.37 ≤
𝑥
< 2.39
𝑥
= Vulnerable software versions
Early Detection
Affected products identified ahead of NVD analysis through intelligence sources.
VendorProductVersionSource
SiemensSIMATIC S7-1500 CPU 1518-4 PN\/DP MFP
V3.1.5 ≤
𝑥
< *
ADP
SiemensSIMATIC S7-1500 CPU 1518-4 PN\/DP MFP
V3.1.5 ≤
𝑥
< *
ADP
SiemensSIMATIC S7-1500 CPU 1518F-4 PN\/DP MFP
V3.1.5 ≤
𝑥
< *
ADP
SiemensSIMATIC S7-1500 CPU 1518F-4 PN\/DP MFP
V3.1.5 ≤
𝑥
< *
ADP
SiemensSIPLUS S7-1500 CPU 1518-4 PN\/DP MFP
V3.1.5 ≤
𝑥
< *
ADP
Debian logo
Debian Releases
Debian Product
Codename
glibc
bookworm
2.36-9+deb12u9
fixed
bookworm (security)
2.36-9+deb12u7
fixed
bullseye
2.31-13+deb11u11
not-affected
bullseye (security)
2.31-13+deb11u10
fixed
buster
not-affected
sid
2.40-4
fixed
trixie
2.40-4
fixed
Ubuntu logo
Ubuntu Releases
Ubuntu Product
Codename
eglibc
bionic
dne
focal
dne
jammy
dne
mantic
dne
noble
dne
trusty
not-affected
xenial
dne
glibc
bionic
not-affected
focal
not-affected
jammy
not-affected
mantic
Fixed 2.38-1ubuntu6.1
released
noble
Fixed 2.39-0ubuntu1
released
trusty
dne
xenial
not-affected
openSUSE logo
openSUSE / SLES Releases
openSUSE Product
Release
glibc
suse enterprise desktop 15 SP6
2.38-150600.12.1
fixed
suse enterprise desktop 15 SP7
2.38-150600.14.29.1
fixed
suse enterprise sap 15 SP6
2.38-150600.12.1
fixed
suse enterprise sap 15 SP7
2.38-150600.14.29.1
fixed
suse enterprise server 15 SP6
2.38-150600.12.1
fixed
suse enterprise server 15 SP7
2.38-150600.14.29.1
fixed
glibc-32bit
suse enterprise desktop 15 SP6
2.38-150600.12.1
fixed
suse enterprise desktop 15 SP7
2.38-150600.14.29.1
fixed
suse enterprise sap 15 SP6
2.38-150600.12.1
fixed
suse enterprise sap 15 SP7
2.38-150600.14.29.1
fixed
suse enterprise server 15 SP6
2.38-150600.12.1
fixed
suse enterprise server 15 SP7
2.38-150600.14.29.1
fixed
glibc-devel
suse enterprise desktop 15 SP6
2.38-150600.12.1
fixed
suse enterprise desktop 15 SP7
2.38-150600.14.29.1
fixed
suse enterprise sap 15 SP6
2.38-150600.12.1
fixed
suse enterprise sap 15 SP7
2.38-150600.14.29.1
fixed
suse enterprise server 15 SP6
2.38-150600.12.1
fixed
suse enterprise server 15 SP7
2.38-150600.14.29.1
fixed
glibc-devel-32bit
suse enterprise desktop 15 SP6
2.38-150600.12.1
fixed
suse enterprise desktop 15 SP7
2.38-150600.14.29.1
fixed
suse enterprise sap 15 SP6
2.38-150600.12.1
fixed
suse enterprise sap 15 SP7
2.38-150600.14.29.1
fixed
suse enterprise server 15 SP6
2.38-150600.12.1
fixed
suse enterprise server 15 SP7
2.38-150600.14.29.1
fixed
glibc-devel-static
suse enterprise desktop 15 SP6
2.38-150600.12.1
fixed
suse enterprise desktop 15 SP7
2.38-150600.14.29.1
fixed
suse enterprise sap 15 SP6
2.38-150600.12.1
fixed
suse enterprise sap 15 SP7
2.38-150600.14.29.1
fixed
suse enterprise server 15 SP6
2.38-150600.12.1
fixed
suse enterprise server 15 SP7
2.38-150600.14.29.1
fixed
glibc-extra
suse enterprise desktop 15 SP6
2.38-150600.12.1
fixed
suse enterprise desktop 15 SP7
2.38-150600.14.29.1
fixed
suse enterprise sap 15 SP6
2.38-150600.12.1
fixed
suse enterprise sap 15 SP7
2.38-150600.14.29.1
fixed
suse enterprise server 15 SP6
2.38-150600.12.1
fixed
suse enterprise server 15 SP7
2.38-150600.14.29.1
fixed
glibc-i18ndata
suse enterprise desktop 15 SP6
2.38-150600.12.1
fixed
suse enterprise desktop 15 SP7
2.38-150600.14.29.1
fixed
suse enterprise sap 15 SP6
2.38-150600.12.1
fixed
suse enterprise sap 15 SP7
2.38-150600.14.29.1
fixed
suse enterprise server 15 SP6
2.38-150600.12.1
fixed
suse enterprise server 15 SP7
2.38-150600.14.29.1
fixed
glibc-info
suse enterprise desktop 15 SP6
2.38-150600.12.1
fixed
suse enterprise desktop 15 SP7
2.38-150600.14.29.1
fixed
suse enterprise sap 15 SP6
2.38-150600.12.1
fixed
suse enterprise sap 15 SP7
2.38-150600.14.29.1
fixed
suse enterprise server 15 SP6
2.38-150600.12.1
fixed
suse enterprise server 15 SP7
2.38-150600.14.29.1
fixed
glibc-lang
suse enterprise desktop 15 SP6
2.38-150600.12.1
fixed
suse enterprise desktop 15 SP7
2.38-150600.14.29.1
fixed
suse enterprise sap 15 SP6
2.38-150600.12.1
fixed
suse enterprise sap 15 SP7
2.38-150600.14.29.1
fixed
suse enterprise server 15 SP6
2.38-150600.12.1
fixed
suse enterprise server 15 SP7
2.38-150600.14.29.1
fixed
glibc-locale
suse enterprise desktop 15 SP6
2.38-150600.12.1
fixed
suse enterprise desktop 15 SP7
2.38-150600.14.29.1
fixed
suse enterprise sap 15 SP6
2.38-150600.12.1
fixed
suse enterprise sap 15 SP7
2.38-150600.14.29.1
fixed
suse enterprise server 15 SP6
2.38-150600.12.1
fixed
suse enterprise server 15 SP7
2.38-150600.14.29.1
fixed
glibc-locale-base
suse enterprise desktop 15 SP6
2.38-150600.12.1
fixed
suse enterprise desktop 15 SP7
2.38-150600.14.29.1
fixed
suse enterprise sap 15 SP6
2.38-150600.12.1
fixed
suse enterprise sap 15 SP7
2.38-150600.14.29.1
fixed
suse enterprise server 15 SP6
2.38-150600.12.1
fixed
suse enterprise server 15 SP7
2.38-150600.14.29.1
fixed
glibc-locale-base-32bit
suse enterprise desktop 15 SP6
2.38-150600.12.1
fixed
suse enterprise desktop 15 SP7
2.38-150600.14.29.1
fixed
suse enterprise sap 15 SP6
2.38-150600.12.1
fixed
suse enterprise sap 15 SP7
2.38-150600.14.29.1
fixed
suse enterprise server 15 SP6
2.38-150600.12.1
fixed
suse enterprise server 15 SP7
2.38-150600.14.29.1
fixed
glibc-profile
suse enterprise desktop 15 SP6
2.38-150600.12.1
fixed
suse enterprise desktop 15 SP7
2.38-150600.14.29.1
fixed
suse enterprise sap 15 SP6
2.38-150600.12.1
fixed
suse enterprise sap 15 SP7
2.38-150600.14.29.1
fixed
suse enterprise server 15 SP6
2.38-150600.12.1
fixed
suse enterprise server 15 SP7
2.38-150600.14.29.1
fixed
glibc-utils
suse enterprise desktop 15 SP6
2.38-150600.12.1
fixed
suse enterprise desktop 15 SP7
2.38-150600.14.29.1
fixed
suse enterprise sap 15 SP6
2.38-150600.12.1
fixed
suse enterprise sap 15 SP7
2.38-150600.14.29.1
fixed
suse enterprise server 15 SP6
2.38-150600.12.1
fixed
suse enterprise server 15 SP7
2.38-150600.14.29.1
fixed
libnsl1
suse enterprise desktop 15 SP6
2.38-150600.12.1
fixed
suse enterprise desktop 15 SP7
2.38-150600.14.29.1
fixed
suse enterprise sap 15 SP6
2.38-150600.12.1
fixed
suse enterprise sap 15 SP7
2.38-150600.14.29.1
fixed
suse enterprise server 15 SP6
2.38-150600.12.1
fixed
suse enterprise server 15 SP7
2.38-150600.14.29.1
fixed
libnsl1-32bit
suse enterprise desktop 15 SP6
2.38-150600.12.1
fixed
suse enterprise desktop 15 SP7
2.38-150600.14.29.1
fixed
suse enterprise sap 15 SP6
2.38-150600.12.1
fixed
suse enterprise sap 15 SP7
2.38-150600.14.29.1
fixed
suse enterprise server 15 SP6
2.38-150600.12.1
fixed
suse enterprise server 15 SP7
2.38-150600.14.29.1
fixed
nscd
suse enterprise desktop 15 SP6
2.38-150600.12.1
fixed
suse enterprise desktop 15 SP7
2.38-150600.14.29.1
fixed
suse enterprise sap 15 SP6
2.38-150600.12.1
fixed
suse enterprise sap 15 SP7
2.38-150600.14.29.1
fixed
suse enterprise server 15 SP6
2.38-150600.12.1
fixed
suse enterprise server 15 SP7
2.38-150600.14.29.1
fixed
Common Weakness Enumeration
References
http://packetstormsecurity.com/files/176932/glibc-syslog-Heap-Based-Buffer-Overflow.html
http://seclists.org/fulldisclosure/2024/Feb/3
https://access.redhat.com/security/cve/CVE-2023-6779
https://bugzilla.redhat.com/show_bug.cgi?id=2254395
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/D2FIH77VHY3KCRROCXOT6L27WMZXSJ2G/
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/MWQ6BZJ6CV5UAW4VZSKJ6TO4KIW2KWAQ/
https://security.gentoo.org/glsa/202402-01
https://security.netapp.com/advisory/ntap-20240223-0006/
https://www.openwall.com/lists/oss-security/2024/01/30/6
https://www.qualys.com/2024/01/30/cve-2023-6246/syslog.txt
http://packetstormsecurity.com/files/176932/glibc-syslog-Heap-Based-Buffer-Overflow.html
http://seclists.org/fulldisclosure/2024/Feb/3
https://access.redhat.com/security/cve/CVE-2023-6779
https://bugzilla.redhat.com/show_bug.cgi?id=2254395
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/D2FIH77VHY3KCRROCXOT6L27WMZXSJ2G/
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/MWQ6BZJ6CV5UAW4VZSKJ6TO4KIW2KWAQ/
https://security.gentoo.org/glsa/202402-01
https://security.netapp.com/advisory/ntap-20240223-0006/
https://www.openwall.com/lists/oss-security/2024/01/30/6
https://www.qualys.com/2024/01/30/cve-2023-6246/syslog.txt
https://cert-portal.siemens.com/productcert/html/ssa-082556.html