| Summary | Multiple integer overflows in the evbuffer API in Libevent 2.0.x before 2.0.22 and 2.1.x before 2.1.5-beta allow context-dependent attackers to cause a denial of service or possibly have other unspecified impact via "insanely large inputs" to the (1) evbuffer_add, (2) evbuffer_prepend, (3) evbuffer_expand, (4) exbuffer_reserve_space, or (5) evbuffer_read function, which triggers a heap-based buffer overflow or an infinite loop. NOTE: this identifier was SPLIT from CVE-2014-6272 per ADT3 due to different affected versions. |
|---|---|
| Publication Date | Aug. 24, 2015, 11:59 p.m. |
| Registration Date | Jan. 26, 2021, 2:54 p.m. |
| Last Update | Nov. 21, 2024, 11:35 a.m. |
| CVSS2.0 : HIGH | |
| Score | 7.5 |
|---|---|
| Vector | AV:N/AC:L/Au:N/C:P/I:P/A:P |
| 攻撃元区分(AV) | ネットワーク |
| 攻撃条件の複雑さ(AC) | 低 |
| 攻撃前の認証要否(Au) | 不要 |
| 機密性への影響(C) | 低 |
| 完全性への影響(I) | 低 |
| 可用性への影響(A) | 低 |
| Get all privileges. | いいえ |
| Get user privileges | いいえ |
| Get other privileges | いいえ |
| User operation required | いいえ |
| Configuration1 | or higher | or less | more than | less than | |
| cpe:2.3:o:debian:debian_linux:7.1:*:*:*:*:*:*:* | |||||
| Configuration2 | or higher | or less | more than | less than | |
| cpe:2.3:a:libevent_project:libevent:2.0.5:*:*:*:*:*:*:* | |||||
| cpe:2.3:a:libevent_project:libevent:2.0.20:*:*:*:*:*:*:* | |||||
| cpe:2.3:a:libevent_project:libevent:2.0.7:*:*:*:*:*:*:* | |||||
| cpe:2.3:a:libevent_project:libevent:2.0.19:*:*:*:*:*:*:* | |||||
| cpe:2.3:a:libevent_project:libevent:2.0.8:*:*:*:*:*:*:* | |||||
| cpe:2.3:a:libevent_project:libevent:2.0.18:*:*:*:*:*:*:* | |||||
| cpe:2.3:a:libevent_project:libevent:2.0.12:*:*:*:*:*:*:* | |||||
| cpe:2.3:a:libevent_project:libevent:2.1.4:*:*:*:*:*:*:* | |||||
| cpe:2.3:a:libevent_project:libevent:2.0.6:*:*:*:*:*:*:* | |||||
| cpe:2.3:a:libevent_project:libevent:2.0.3:*:*:*:*:*:*:* | |||||
| cpe:2.3:a:libevent_project:libevent:2.0.10:*:*:*:*:*:*:* | |||||
| cpe:2.3:a:libevent_project:libevent:2.0.9:*:*:*:*:*:*:* | |||||
| cpe:2.3:a:libevent_project:libevent:2.1.3:*:*:*:*:*:*:* | |||||
| cpe:2.3:a:libevent_project:libevent:2.1.2:*:*:*:*:*:*:* | |||||
| cpe:2.3:a:libevent_project:libevent:2.0.4:*:*:*:*:*:*:* | |||||
| cpe:2.3:a:libevent_project:libevent:2.0.15:*:*:*:*:*:*:* | |||||
| cpe:2.3:a:libevent_project:libevent:2.0.17:*:*:*:*:*:*:* | |||||
| cpe:2.3:a:libevent_project:libevent:2.1.1:*:*:*:*:*:*:* | |||||
| cpe:2.3:a:libevent_project:libevent:2.0.14:*:*:*:*:*:*:* | |||||
| cpe:2.3:a:libevent_project:libevent:2.0.1:*:*:*:*:*:*:* | |||||
| cpe:2.3:a:libevent_project:libevent:2.0.13:*:*:*:*:*:*:* | |||||
| cpe:2.3:a:libevent_project:libevent:2.0.11:*:*:*:*:*:*:* | |||||
| cpe:2.3:a:libevent_project:libevent:2.0.2:*:*:*:*:*:*:* | |||||
| cpe:2.3:a:libevent_project:libevent:2.0.16:*:*:*:*:*:*:* | |||||
| cpe:2.3:a:libevent_project:libevent:2.0.21:*:*:*:*:*:*:* | |||||
| Title | Libevent の evbuffer API における整数オーバーフローの脆弱性 |
|---|---|
| Summary | Libevent の evbuffer API には、整数オーバーフローの脆弱性が存在します。 本脆弱性は、影響を受けるバージョンが異なるため、CVE-2014-6272 から分割されました。 |
| Possible impacts | 攻撃者により、(1) evbuffer_add、(2) evbuffer_prepend、(3) evbuffer_expand、(4) exbuffer_reserve_space、または (5) evbuffer_read 関数への "過度に大きな入力 (insanely large input)" を介して、ヒープベースのバッファオーバーフローまたは無限ループを誘発されることで、サービス運用妨害 (DoS) 状態にされるなど、不特定の影響を受け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 | Jan. 5, 2015, midnight |
| Registration Date | Aug. 27, 2015, 6:12 p.m. |
| Last Update | Aug. 27, 2015, 6:12 p.m. |
| Debian |
| Debian GNU/Linux 7.1 |
| Niels Provos |
| libevent 2.0.22 未満の 2.0.x |
| libevent 2.1.5-beta 未満の 2.1.x |
| No | Changed Details | Date of change |
|---|---|---|
| 0 | [2015年08月27日] 掲載 |
Feb. 17, 2018, 10:37 a.m. |