NVD Vulnerability Detail
Search Exploit, PoC
CVE-2011-4623
Summary

Integer overflow in the rsCStrExtendBuf function in runtime/stringbuf.c in the imfile module in rsyslog 4.x before 4.6.6, 5.x before 5.7.4, and 6.x before 6.1.4 allows local users to cause a denial of service (daemon hang) via a large file, which triggers a heap-based buffer overflow.

Publication Date Sept. 26, 2012, 8:55 a.m.
Registration Date Jan. 28, 2021, 4:39 p.m.
Last Update Nov. 21, 2024, 10:32 a.m.
CVSS2.0 : LOW
Score 2.1
Vector AV:L/AC:L/Au:N/C:N/I:N/A:P
攻撃元区分(AV) ローカル
攻撃条件の複雑さ(AC)
攻撃前の認証要否(Au) 不要
機密性への影響(C) なし
完全性への影響(I) なし
可用性への影響(A)
Get all privileges. いいえ
Get user privileges いいえ
Get other privileges いいえ
User operation required いいえ
Affected software configurations
Configuration1 or higher or less more than less than
cpe:2.3:a:rsyslog:rsyslog:4.5.6:*:*:*:*:*:*:*
cpe:2.3:a:rsyslog:rsyslog:4.1.2:*:*:*:*:*:*:*
cpe:2.3:a:rsyslog:rsyslog:4.5.1:*:*:*:*:*:*:*
cpe:2.3:a:rsyslog:rsyslog:4.6.3:*:*:*:*:*:*:*
cpe:2.3:a:rsyslog:rsyslog:4.5.2:*:*:*:*:*:*:*
cpe:2.3:a:rsyslog:rsyslog:4.1.1:*:*:*:*:*:*:*
cpe:2.3:a:rsyslog:rsyslog:4.4.2:*:*:*:*:*:*:*
cpe:2.3:a:rsyslog:rsyslog:4.6.4:*:*:*:*:*:*:*
cpe:2.3:a:rsyslog:rsyslog:4.5.4:*:*:*:*:*:*:*
cpe:2.3:a:rsyslog:rsyslog:4.3.2:*:*:*:*:*:*:*
cpe:2.3:a:rsyslog:rsyslog:4.1.3:*:*:*:*:*:*:*
cpe:2.3:a:rsyslog:rsyslog:4.5.3:*:*:*:*:*:*:*
cpe:2.3:a:rsyslog:rsyslog:4.6.1:*:*:*:*:*:*:*
cpe:2.3:a:rsyslog:rsyslog:4.1.0:*:*:*:*:*:*:*
cpe:2.3:a:rsyslog:rsyslog:4.5.8:*:*:*:*:*:*:*
cpe:2.3:a:rsyslog:rsyslog:4.1.5:*:*:*:*:*:*:*
cpe:2.3:a:rsyslog:rsyslog:4.3.0:*:*:*:*:*:*:*
cpe:2.3:a:rsyslog:rsyslog:4.6.2:*:*:*:*:*:*:*
cpe:2.3:a:rsyslog:rsyslog:4.5.5:*:*:*:*:*:*:*
cpe:2.3:a:rsyslog:rsyslog:4.4.0:*:*:*:*:*:*:*
cpe:2.3:a:rsyslog:rsyslog:4.6.0:*:*:*:*:*:*:*
cpe:2.3:a:rsyslog:rsyslog:4.5.0:*:*:*:*:*:*:*
cpe:2.3:a:rsyslog:rsyslog:4.1.7:*:*:*:*:*:*:*
cpe:2.3:a:rsyslog:rsyslog:4.2.0:*:*:*:*:*:*:*
cpe:2.3:a:rsyslog:rsyslog:4.4.1:*:*:*:*:*:*:*
cpe:2.3:a:rsyslog:rsyslog:4.3.1:*:*:*:*:*:*:*
cpe:2.3:a:rsyslog:rsyslog:4.6.5:*:*:*:*:*:*:*
cpe:2.3:a:rsyslog:rsyslog:4.1.6:*:*:*:*:*:*:*
cpe:2.3:a:rsyslog:rsyslog:4.1.4:*:*:*:*:*:*:*
cpe:2.3:a:rsyslog:rsyslog:4.5.7:*:*:*:*:*:*:*
Configuration2 or higher or less more than less than
cpe:2.3:a:rsyslog:rsyslog:5.5.6:*:*:*:*:*:*:*
cpe:2.3:a:rsyslog:rsyslog:5.5.7:*:*:*:*:*:*:*
cpe:2.3:a:rsyslog:rsyslog:5.4.2:*:*:*:*:*:*:*
cpe:2.3:a:rsyslog:rsyslog:5.5.0:*:*:*:*:*:*:*
cpe:2.3:a:rsyslog:rsyslog:5.5.4:*:*:*:*:*:*:*
cpe:2.3:a:rsyslog:rsyslog:5.1.6:*:*:*:*:*:*:*
cpe:2.3:a:rsyslog:rsyslog:5.5.1:*:*:*:*:*:*:*
cpe:2.3:a:rsyslog:rsyslog:5.6.1:*:*:*:*:*:*:*
cpe:2.3:a:rsyslog:rsyslog:5.3.6:*:*:*:*:*:*:*
cpe:2.3:a:rsyslog:rsyslog:5.1.1:*:*:*:*:*:*:*
cpe:2.3:a:rsyslog:rsyslog:5.6.4:*:*:*:*:*:*:*
cpe:2.3:a:rsyslog:rsyslog:5.1.4:*:*:*:*:*:*:*
cpe:2.3:a:rsyslog:rsyslog:5.5.3:*:*:*:*:*:*:*
cpe:2.3:a:rsyslog:rsyslog:5.6.2:*:*:*:*:*:*:*
cpe:2.3:a:rsyslog:rsyslog:5.6.0:*:*:*:*:*:*:*
cpe:2.3:a:rsyslog:rsyslog:5.6.5:*:*:*:*:*:*:*
cpe:2.3:a:rsyslog:rsyslog:5.1.0:*:*:*:*:*:*:*
cpe:2.3:a:rsyslog:rsyslog:5.1.5:*:*:*:*:*:*:*
cpe:2.3:a:rsyslog:rsyslog:5.4.0:*:*:*:*:*:*:*
cpe:2.3:a:rsyslog:rsyslog:5.7.2:*:*:*:*:*:*:*
cpe:2.3:a:rsyslog:rsyslog:5.3.1:*:*:*:*:*:*:*
cpe:2.3:a:rsyslog:rsyslog:5.1.2:*:*:*:*:*:*:*
cpe:2.3:a:rsyslog:rsyslog:5.2.0:*:*:*:*:*:*:*
cpe:2.3:a:rsyslog:rsyslog:5.3.7:*:*:*:*:*:*:*
cpe:2.3:a:rsyslog:rsyslog:5.2.2:*:*:*:*:*:*:*
cpe:2.3:a:rsyslog:rsyslog:5.3.3:*:*:*:*:*:*:*
cpe:2.3:a:rsyslog:rsyslog:5.3.2:*:*:*:*:*:*:*
cpe:2.3:a:rsyslog:rsyslog:5.6.3:*:*:*:*:*:*:*
cpe:2.3:a:rsyslog:rsyslog:5.5.2:*:*:*:*:*:*:*
cpe:2.3:a:rsyslog:rsyslog:5.2.1:*:*:*:*:*:*:*
cpe:2.3:a:rsyslog:rsyslog:5.4.1:*:*:*:*:*:*:*
cpe:2.3:a:rsyslog:rsyslog:5.7.0:*:*:*:*:*:*:*
cpe:2.3:a:rsyslog:rsyslog:5.7.3:*:*:*:*:*:*:*
cpe:2.3:a:rsyslog:rsyslog:5.1.3:*:*:*:*:*:*:*
cpe:2.3:a:rsyslog:rsyslog:5.5.5:*:*:*:*:*:*:*
cpe:2.3:a:rsyslog:rsyslog:5.3.4:*:*:*:*:*:*:*
cpe:2.3:a:rsyslog:rsyslog:5.7.1:*:*:*:*:*:*:*
cpe:2.3:a:rsyslog:rsyslog:5.3.5:*:*:*:*:*:*:*
Configuration3 or higher or less more than less than
cpe:2.3:a:rsyslog:rsyslog:6.1.1:*:*:*:*:*:*:*
cpe:2.3:a:rsyslog:rsyslog:6.1.0:*:*:*:*:*:*:*
cpe:2.3:a:rsyslog:rsyslog:6.1.3:*:*:*:*:*:*:*
cpe:2.3:a:rsyslog:rsyslog:6.1.2:*:*:*:*:*:*:*
Related information, measures and tools
Common Vulnerabilities List

JVN Vulnerability Information
rsyslog の imfile モジュールにおける整数オーバーフローの脆弱性
Title rsyslog の imfile モジュールにおける整数オーバーフローの脆弱性
Summary

rsyslog の imfile モジュールの runtime/stringbuf.c 内の rsCStrExtendBuf 関数には、整数オーバーフローの脆弱性が存在します。

Possible impacts ローカルユーザにより、過度に大きなファイルを介して、ヒープベースのバッファオーバーフローを誘発されることで、サービス運用妨害 (デーモンハング) 状態にされる可能性があります。
Solution

ベンダより正式な対策が公開されています。ベンダ情報を参照して適切な対策を実施してください。

Publication Date Feb. 17, 2011, midnight
Registration Date Sept. 27, 2012, 4:14 p.m.
Last Update Sept. 27, 2012, 4:14 p.m.
Affected System
Adiscon
rsyslog 4.6.6 未満の 4.x
rsyslog 5.7.4 未満の 5.x
rsyslog 6.1.4 未満の 6.x
CVE (情報セキュリティ 共通脆弱性識別子)
CWE (共通脆弱性タイプ一覧)
ベンダー情報
Change Log
No Changed Details Date of change
0 [2012年09月27日]
  掲載
Feb. 17, 2018, 10:37 a.m.