漏洞信息
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Vulnerability Title
TimescaleDB 2.29.1 Out-of-Bounds Read Information Disclosure via Dictionary Compression Reverse Iterator
Vulnerability Description
TimescaleDB through 2.29.1, fixed in commit 517c13e, contains an out-of-bounds read in the Dictionary compression reverse row iterator (tsl/src/compression/algorithms/dictionary.c). The forward path validates the decoded index; the reverse path uses an assertion compiled out of release builds, leaving the 64-bit Simple8b index unvalidated and the read offset attacker-controlled. Attackers with DML access to a physical compressed relation can store a crafted datum and run a reverse-order scan. With a pass-by-value column type the out-of-bounds Datum is returned to the client as a normal column value, disclosing backend memory including the shared buffer pool, which SQL access control does not cover.
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H
Vulnerability Type
对数组索引的验证不恰当
Vulnerability Title
TimescaleDB 缓冲区错误漏洞
Vulnerability Description
TimescaleDB是TimescaleDB公司的一款提供时序数据高效处理的数据库扩展。 TimescaleDB 2.29.1及之前版本存在安全漏洞,该漏洞源于Dictionary压缩反向行迭代器存在越界读取,反向路径未验证解码索引,导致读取偏移攻击者可控,可能造成后端内存(包括共享缓冲池)泄露。
CVSS Information
N/A
Vulnerability Type
N/A