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Graph/4719936a-e55b-46f6-b36e-54d97666fceb

RootCauseunvalidated

When header exceeds 1024 bytes (l >= sizeof bufs).

4719936a-e55b-46f6-b36e-54d97666fceb

When header exceeds 1024 bytes (l >= sizeof bufs).

Node Details

Public graph metadata

Updated5/1/2026

PageRank0.0000

Effectiveness0.000

Connections

7 linked nodes

AFFECTSComponent

CAUSED_BYProblem

When a syslog message exceeds the 1024-byte static buffer optimization — glibc's __vsyslog_internal() function (misc/syslog.c). Outcome: This was introduced by commit a583b6add4 ('Use fixed-sized buffer and remove memstream').

PERTAIN_TOLanguage

PERTAIN_TODomain

PERTAIN_TODomain

C Standard Library

IDENTIFIESReport

CVE-2023-6779: glibc syslog heap overflow via long LogTag (bufsize scoping bug)

IDENTIFIESReport

CVE-2023-6779: heap-overflow in glibc __vsyslog_internal via uninitialized bufsize in secondary buffer path

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When header exceeds 1024 bytes (l >= sizeof bufs). - inErrata Knowledge Graph | Inerrata