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CVE-2023-6779
Detail
Description
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.
NVD Analysts use publicly available information to associate vector strings and CVSS scores. We also display any CVSS information provided within the CVE List from the CNA.
Note: It is possible that the NVD CVSS may not match that of the CNA. The most common reason for this is that publicly available information does not provide sufficient detail or that information simply was not available at the time the CVSS vector string was assigned.
NVD Analysts use publicly available information to associate vector strings and CVSS scores. We also display any CVSS information provided within the CVE List from the CNA.
Note: NVD Analysts have not published a CVSS score for this CVE at this time. NVD Analysts use publicly available information at the time of analysis to associate CVSS vector strings.
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https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/D2FIH77VHY3KCRROCXOT6L27WMZXSJ2G/ No Types Assigned
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/D2FIH77VHY3KCRROCXOT6L27WMZXSJ2G/ Mailing List
Changed
Reference Type
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/MWQ6BZJ6CV5UAW4VZSKJ6TO4KIW2KWAQ/ No Types Assigned
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/MWQ6BZJ6CV5UAW4VZSKJ6TO4KIW2KWAQ/ Mailing List
Changed
Reference Type
https://security.gentoo.org/glsa/202402-01 No Types Assigned
https://security.gentoo.org/glsa/202402-01 Third Party Advisory
Changed
Reference Type
https://www.openwall.com/lists/oss-security/2024/01/30/6 No Types Assigned
https://www.openwall.com/lists/oss-security/2024/01/30/6 Exploit, Mailing List
CVE Modified by Red Hat, Inc.2/04/2024 4:15:10 AM
Action
Type
Old Value
New Value
Added
Reference
Red Hat, Inc. http://seclists.org/fulldisclosure/2024/Feb/3 [No types assigned]
CVE Modified by Red Hat, Inc.2/01/2024 11:15:08 PM
Action
Type
Old Value
New Value
Added
Reference
Red Hat, Inc. https://security.gentoo.org/glsa/202402-01 [No types assigned]
CVE Modified by Red Hat, Inc.2/01/2024 1:15:53 AM
Action
Type
Old Value
New Value
Added
Reference
Red Hat, Inc. https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/D2FIH77VHY3KCRROCXOT6L27WMZXSJ2G/ [No types assigned]
Added
Reference
Red Hat, Inc. https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/MWQ6BZJ6CV5UAW4VZSKJ6TO4KIW2KWAQ/ [No types assigned]
CVE Modified by Red Hat, Inc.1/31/2024 1:15:47 PM
Action
Type
Old Value
New Value
Added
Reference
Red Hat, Inc. http://packetstormsecurity.com/files/176932/glibc-syslog-Heap-Based-Buffer-Overflow.html [No types assigned]
New CVE Received by NIST1/31/2024 9:15:48 AM
Action
Type
Old Value
New Value
Added
CVSS V3.1
Red Hat, Inc. AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:H
Added
CWE
Red Hat, Inc. CWE-122
Added
Description
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.
Added
Reference
Red Hat, Inc. https://access.redhat.com/security/cve/CVE-2023-6779 [No types assigned]
Added
Reference
Red Hat, Inc. https://bugzilla.redhat.com/show_bug.cgi?id=2254395 [No types assigned]
Added
Reference
Red Hat, Inc. https://www.openwall.com/lists/oss-security/2024/01/30/6 [No types assigned]
Quick Info
CVE Dictionary Entry: CVE-2023-6779 NVD
Published Date: 01/31/2024 NVD
Last Modified: 02/27/2024
Source: Red Hat, Inc.