curl-7.61.1-33.el8_9.5
エラータID: AXSA:2024-7656:02
リリース日:
2024/04/04 Thursday - 18:00
題名:
curl-7.61.1-33.el8_9.5
影響のあるチャネル:
Asianux Server 8 for x86_64
Severity:
Moderate
Description:
以下項目について対処しました。
[Security Fix]
- curl には、read コールバックを誤って使用してしまう問題が
あるため、リモートの攻撃者により、read コールバックを使用
する PUT リクエストに続く POST リクエストの発行を介して、
不正なデータの送信やメモリの解放後利用を可能とする脆弱性
が存在します。(CVE-2023-28322)
- libcurl の curl_easy_duphandle() 関数には、固定の名称を持つ
ファイルに対して Cookie 情報の保存や読み取りを行ってしまう
問題があるため、リモートの攻撃者により、特定の状況下での
転送ハンドルの複製を介して、Cookie 情報の漏洩を可能とする
脆弱性が存在します。(CVE-2023-38546)
- Curl のパブリックサフィックスリストと Cookie ドメインの
照合機能には、大文字と小文字が混在するケースの処理に欠陥
があるため、リモートの攻撃者により、細工された Web サーバー
からの Cookie の設定を介して、情報の漏洩 (関連のないサイト
への Cookie 情報の送信) を可能とする脆弱性が存在します。
(CVE-2023-46218)
解決策:
パッケージをアップデートしてください。
CVE:
CVE-2023-38546
This flaw allows an attacker to insert cookies at will into a running program using libcurl, if the specific series of conditions are met. libcurl performs transfers. In its API, an application creates "easy handles" that are the individual handles for single transfers. libcurl provides a function call that duplicates en easy handle called [curl_easy_duphandle](https://curl.se/libcurl/c/curl_easy_duphandle.html). If a transfer has cookies enabled when the handle is duplicated, the cookie-enable state is also cloned - but without cloning the actual cookies. If the source handle did not read any cookies from a specific file on disk, the cloned version of the handle would instead store the file name as `none` (using the four ASCII letters, no quotes). Subsequent use of the cloned handle that does not explicitly set a source to load cookies from would then inadvertently load cookies from a file named `none` - if such a file exists and is readable in the current directory of the program using libcurl. And if using the correct file format of course.
This flaw allows an attacker to insert cookies at will into a running program using libcurl, if the specific series of conditions are met. libcurl performs transfers. In its API, an application creates "easy handles" that are the individual handles for single transfers. libcurl provides a function call that duplicates en easy handle called [curl_easy_duphandle](https://curl.se/libcurl/c/curl_easy_duphandle.html). If a transfer has cookies enabled when the handle is duplicated, the cookie-enable state is also cloned - but without cloning the actual cookies. If the source handle did not read any cookies from a specific file on disk, the cloned version of the handle would instead store the file name as `none` (using the four ASCII letters, no quotes). Subsequent use of the cloned handle that does not explicitly set a source to load cookies from would then inadvertently load cookies from a file named `none` - if such a file exists and is readable in the current directory of the program using libcurl. And if using the correct file format of course.
CVE-2023-46218
This flaw allows a malicious HTTP server to set "super cookies" in curl that are then passed back to more origins than what is otherwise allowed or possible. This allows a site to set cookies that then would get sent to different and unrelated sites and domains. It could do this by exploiting a mixed case flaw in curl's function that verifies a given cookie domain against the Public Suffix List (PSL). For example a cookie could be set with `domain=co.UK` when the URL used a lower case hostname `curl.co.uk`, even though `co.uk` is listed as a PSL domain.
This flaw allows a malicious HTTP server to set "super cookies" in curl that are then passed back to more origins than what is otherwise allowed or possible. This allows a site to set cookies that then would get sent to different and unrelated sites and domains. It could do this by exploiting a mixed case flaw in curl's function that verifies a given cookie domain against the Public Suffix List (PSL). For example a cookie could be set with `domain=co.UK` when the URL used a lower case hostname `curl.co.uk`, even though `co.uk` is listed as a PSL domain.
追加情報:
N/A
ダウンロード:
SRPMS
- curl-7.61.1-33.el8_9.5.src.rpm
MD5: e56ae3eee576ae72e669df746ca43f7a
SHA-256: 0bca4ca1054e43dd4d76ccf020b7740b032ad0dca1b0781ce17c7414dce448c7
Size: 2.50 MB
Asianux Server 8 for x86_64
- curl-7.61.1-33.el8_9.5.x86_64.rpm
MD5: a5f63c10fd09b1edcdfc3e535a974717
SHA-256: 657580a1d44da61bbce9af25d9f3f2df70f524e2e0251f909ed784e8bee523d9
Size: 352.67 kB - libcurl-7.61.1-33.el8_9.5.i686.rpm
MD5: c0eb1a4c7a878745ddb53761dbbac8d2
SHA-256: 1d4e178a24f690e90f2c5dd85d911980edd8c0439ca57fd037cd2cb8986ad862
Size: 330.83 kB - libcurl-7.61.1-33.el8_9.5.x86_64.rpm
MD5: cf57f08b99c8335af7c238ee2bede3e8
SHA-256: 4144bc775ec767d4bd485ea4ffb5aa330d2ea8a7fefa385091299ad3710750bf
Size: 302.93 kB - libcurl-devel-7.61.1-33.el8_9.5.i686.rpm
MD5: 0672c74a4d52fcd78d3e0ae25ae70042
SHA-256: 8e3ada322784f8eadc388c19cc11e34321b3c22f9bd3aaec90790b12fd7a4ec3
Size: 834.94 kB - libcurl-devel-7.61.1-33.el8_9.5.x86_64.rpm
MD5: 56ceec968287fbf816df4fdde87e6aa2
SHA-256: 7548017308c9cc4259dd5be33b441bad2edf20f0bb9300adf7431adcc5097394
Size: 834.90 kB - libcurl-minimal-7.61.1-33.el8_9.5.i686.rpm
MD5: a309dd2bbc9e7ef1de8a349a9a87cb09
SHA-256: a625ecba12b3752020fc09c131a713e7c4135af2d4fca657bbf52362ea4b0ec6
Size: 315.93 kB - libcurl-minimal-7.61.1-33.el8_9.5.x86_64.rpm
MD5: 73d28a65517123825ef2322eddd45db4
SHA-256: 00440377d7f643ab447c6cfc2606d1d89c9482970cf045befcdc30fb5c0aab66
Size: 289.24 kB