Glibc: integer overflow in __vsyslog_internal()
Published Jan 31, 2024
5.3
MEDIUMCVSS 3.1
EPSS 2.71%
Description
An integer 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 very long message, leading to an incorrect calculation of the buffer size to store the message, resulting in undefined behavior. This issue affects glibc 2.37 and newer.
Affected products
Configuration 2
- 38
- 39
No data.
Red Hat Enterprise Linux 6
compat-glibc
Not affected
Red Hat Enterprise Linux 6
glibc
Not affected
Red Hat Enterprise Linux 7
compat-glibc
Not affected
Red Hat Enterprise Linux 7
glibc
Not affected
Red Hat Enterprise Linux 8
glibc
Not affected
Red Hat Enterprise Linux 9
glibc
Not affected
| Product | Package | State | Advisory |
|---|---|---|---|
| Red Hat Enterprise Linux 6 | compat-glibc | Not affected | n/a |
| Red Hat Enterprise Linux 6 | glibc | Not affected | n/a |
| Red Hat Enterprise Linux 7 | compat-glibc | Not affected | n/a |
| Red Hat Enterprise Linux 7 | glibc | Not affected | n/a |
| Red Hat Enterprise Linux 8 | glibc | Not affected | n/a |
| Red Hat Enterprise Linux 9 | glibc | Not affected | n/a |
No package ranges for this CVE.
Remediation
Red Hat statement
This issue can only result in a memory allocation failure when the syslog function is called with a very long message, preventing the output of the message. This is the only known impact of this issue and this CVE was assigned to track this possibility. The glibc package, as shipped with Red Hat products, is not affected by this vulnerability because this issue was introduced in glibc 2.37, this glibc version is not used by any Red Hat product.
References (14)
- http://packetstormsecurity.com/files/176932/glibc-syslog-Heap-Based-Buffer-Overflow.html ExploitThird Party AdvisoryVDB Entry
- http://seclists.org/fulldisclosure/2024/Feb/3 ExploitMailing ListThird Party Advisory
- https://access.redhat.com/security/cve/CVE-2023-6780 vdb-entryx_refsource_REDHATThird Party AdvisoryVendor Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=2254396 issue-trackingx_refsource_REDHATIssue Tracking
- https://cert-portal.siemens.com/productcert/html/ssa-082556.html
- https://euvd.enisa.europa.eu/vulnerability/EUVD-2023-58992 Advisory
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/D2FIH77VHY3KCRROCXOT6L27WMZXSJ2G/ Mailing List
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/MWQ6BZJ6CV5UAW4VZSKJ6TO4KIW2KWAQ/ Mailing List
- https://nvd.nist.gov/vuln/detail/CVE-2023-6780
- https://security.gentoo.org/glsa/202402-01 Third Party Advisory
- https://security.netapp.com/advisory/ntap-20250207-0010/
- https://www.cve.org/CVERecord?id=CVE-2023-6780
- https://www.openwall.com/lists/oss-security/2024/01/30/6 ExploitMailing List
- https://www.qualys.com/2024/01/30/cve-2023-6246/syslog.txt Third Party Advisory
Change history (0)
No recorded changes yet.