CVE-2023-6779
CVE.org · Published
- Record status
- Published
- Identifier year (not publication year)
- 2023
- Source publication
- Source updated
- Imported by cveboard
- Source snapshot
- cve_2026-10-24_midnight_baseline ·
CNA source text (English)
Glibc: off-by-one heap-based buffer overflow in __vsyslog_internal()
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.
Scoped product and version facts
Fix information unknown; no fixed version is derived here. Missing information does not prove that no fix exists.
Exploitation unknown; this catalogue does not assess exploitation.
glibc
- Vendor
- n/a
- Product
- glibc
- Platforms
- Unknown
- Default status
Unknown
| Version (version) | Status (status) | Version scheme (versionType) | Exclusive end (lessThan) | Inclusive end (lessThanOrEqual) | Status changes (at → status) |
|---|---|---|---|---|---|
| 2.39 | unaffected | Unavailable | Unavailable | Unavailable | None listed |
Red Hat Enterprise Linux 6
- Vendor
- Red Hat
- Product
- Red Hat Enterprise Linux 6
- Platforms
- Unknown
- Default status
unaffected- Package
- compat-glibc
- Package collection
- https://access.redhat.com/downloads/content/package-browser/
No explicit version tuples; consult this entry's default status.
Red Hat Enterprise Linux 6
- Vendor
- Red Hat
- Product
- Red Hat Enterprise Linux 6
- Platforms
- Unknown
- Default status
unaffected- Package
- glibc
- Package collection
- https://access.redhat.com/downloads/content/package-browser/
No explicit version tuples; consult this entry's default status.
Red Hat Enterprise Linux 7
- Vendor
- Red Hat
- Product
- Red Hat Enterprise Linux 7
- Platforms
- Unknown
- Default status
unaffected- Package
- compat-glibc
- Package collection
- https://access.redhat.com/downloads/content/package-browser/
No explicit version tuples; consult this entry's default status.
Red Hat Enterprise Linux 7
- Vendor
- Red Hat
- Product
- Red Hat Enterprise Linux 7
- Platforms
- Unknown
- Default status
unaffected- Package
- glibc
- Package collection
- https://access.redhat.com/downloads/content/package-browser/
No explicit version tuples; consult this entry's default status.
Red Hat Enterprise Linux 8
- Vendor
- Red Hat
- Product
- Red Hat Enterprise Linux 8
- Platforms
- Unknown
- Default status
unaffected- Package
- glibc
- Package collection
- https://access.redhat.com/downloads/content/package-browser/
No explicit version tuples; consult this entry's default status.
Red Hat Enterprise Linux 9
- Vendor
- Red Hat
- Product
- Red Hat Enterprise Linux 9
- Platforms
- Unknown
- Default status
unaffected- Package
- glibc
- Package collection
- https://access.redhat.com/downloads/content/package-browser/
No explicit version tuples; consult this entry's default status.
Fedora
- Vendor
- Fedora
- Product
- Fedora
- Platforms
- Unknown
- Default status
affected- Package
- glibc
- Package collection
- https://packages.fedoraproject.org/
No explicit version tuples; consult this entry's default status.