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| <!DOCTYPE HTML><html><html lang="en"><head><meta charset="UTF-8"><base href=".."><link rel="alternate" type="application/atom+xml" href="https://haskell.github.io/security-advisories/atom.xml"><link rel="stylesheet" href="assets/css/default.css"><meta name="viewport" content="width=device-width, initial-scale=1"><meta name="description" content="Haskell Security advisories"><title>Haskell Security advisories</title></head><body><div class="nav-bar"><ul class="items"><li class><a href="by-dates.html">by date</a></li><li class><a href="by-packages.html">by package</a></li></ul></div><h1>Advisories list</h1><div class="content"><pre><code class="language-toml">[advisory] | ||
| id = "HSEC-2023-0001" | ||
| cwe = [328, 400] | ||
| keywords = ["json", "dos", "historical"] | ||
| aliases = ["CVE-2022-3433"] | ||
|
|
||
| [[affected]] | ||
| package = "aeson" | ||
| cvss = "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H" | ||
|
|
||
| [[affected.versions]] | ||
| introduced = "0.4.0.0" | ||
| fixed = "2.0.1.0" | ||
|
|
||
| [[references]] | ||
| type = "ARTICLE" | ||
| url = "https://cs-syd.eu/posts/2021-09-11-json-vulnerability" | ||
| [[references]] | ||
| type = "ARTICLE" | ||
| url = "https://frasertweedale.github.io/blog-fp/posts/2021-10-12-aeson-hash-flooding-protection.html" | ||
| [[references]] | ||
| type = "DISCUSSION" | ||
| url = "https://github.com/haskell/aeson/issues/864" | ||
| </code></pre> | ||
| <h1>Hash flooding vulnerability in aeson</h1> | ||
| <p><em>aeson</em> was vulnerable to hash flooding (a.k.a. hash DoS). The | ||
| issue is a consequence of the HashMap implementation from | ||
| <em>unordered-containers</em>. It results in a denial of service through | ||
| CPU consumption. This technique has been used in real-world attacks | ||
| against a variety of languages, libraries and frameworks over the | ||
| years.</p> | ||
| </div><footer><div class="HF">This site is a project of <a href="https://haskell.foundation" target="_blank" rel="noopener noreferrer">The Haskell Foundation</a>.</div></footer></body></html></html> |
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| <!DOCTYPE HTML><html><html lang="en"><head><meta charset="UTF-8"><base href=".."><link rel="alternate" type="application/atom+xml" href="https://haskell.github.io/security-advisories/atom.xml"><link rel="stylesheet" href="assets/css/default.css"><meta name="viewport" content="width=device-width, initial-scale=1"><meta name="description" content="Haskell Security advisories"><title>Haskell Security advisories</title></head><body><div class="nav-bar"><ul class="items"><li class><a href="by-dates.html">by date</a></li><li class><a href="by-packages.html">by package</a></li></ul></div><h1>Advisories list</h1><div class="content"><pre><code class="language-toml">[advisory] | ||
| id = "HSEC-2023-0002" | ||
| cwe = [347] | ||
| keywords = ["crypto", "historical"] | ||
| aliases = ["CVE-2022-31053"] | ||
| related = ["GHSA-75rw-34q6-72cr"] | ||
|
|
||
| [[affected]] | ||
| package = "biscuit-haskell" | ||
| cvss = "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H" | ||
| [[affected.versions]] | ||
| introduced = "0.1.0.0" | ||
| fixed = "0.2.0.0" | ||
|
|
||
| [[references]] | ||
| type = "REPORT" | ||
| url = "https://eprint.iacr.org/2020/1484" | ||
| [[references]] | ||
| type = "ADVISORY" | ||
| url = "https://github.com/biscuit-auth/biscuit/security/advisories/GHSA-75rw-34q6-72cr" | ||
|
|
||
| </code></pre> | ||
| <h1>Improper Verification of Cryptographic Signature</h1> | ||
| <p>The Biscuit specification version 1 contains a vulnerable algorithm that allows | ||
| malicious actors to forge valid Γ-signatures. Such an attack would allow an | ||
| attacker to create a token with any access level. The version 2 of the | ||
| specification mandates a different algorithm than gamma signatures and as such | ||
| is not affected by this vulnerability.</p> | ||
| </div><footer><div class="HF">This site is a project of <a href="https://haskell.foundation" target="_blank" rel="noopener noreferrer">The Haskell Foundation</a>.</div></footer></body></html></html> |
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| <!DOCTYPE HTML><html><html lang="en"><head><meta charset="UTF-8"><base href=".."><link rel="alternate" type="application/atom+xml" href="https://haskell.github.io/security-advisories/atom.xml"><link rel="stylesheet" href="assets/css/default.css"><meta name="viewport" content="width=device-width, initial-scale=1"><meta name="description" content="Haskell Security advisories"><title>Haskell Security advisories</title></head><body><div class="nav-bar"><ul class="items"><li class><a href="by-dates.html">by date</a></li><li class><a href="by-packages.html">by package</a></li></ul></div><h1>Advisories list</h1><div class="content"><pre><code class="language-toml">[advisory] | ||
| id = "HSEC-2023-0003" | ||
| cwe = [94] | ||
| keywords = ["code", "injection", "historical"] | ||
| aliases = ["CVE-2013-1436"] | ||
|
|
||
| [[affected]] | ||
| package = "xmonad-contrib" | ||
| cvss = "AV:N/AC:L/Au:N/C:P/I:P/A:P" | ||
| [[affected.versions]] | ||
| introduced = "0.5" | ||
| fixed = "0.11.2" | ||
|
|
||
| [[references]] | ||
| type = "ADVISORY" | ||
| url = "https://security.gentoo.org/glsa/201405-28" | ||
| [[references]] | ||
| type = "DISCUSSION" | ||
| url = "http://www.openwall.com/lists/oss-security/2013/07/26/5" | ||
| [[references]] | ||
| type = "FIX" | ||
| url = "https://github.com/xmonad/xmonad-contrib/commit/d3b2a01e3d01ac628e7a3139dd55becbfa37cf51" | ||
| </code></pre> | ||
| <h1>code injection in <em>xmonad-contrib</em></h1> | ||
| <p>The <code>XMonad.Hooks.DynamicLog</code> module in <em>xmonad-contrib</em> before | ||
| <strong>0.11.2</strong> allows remote attackers to execute arbitrary commands via a | ||
| web page title, which activates the commands when the user clicks on | ||
| the xmobar window title, as demonstrated using an action tag.</p> | ||
| </div><footer><div class="HF">This site is a project of <a href="https://haskell.foundation" target="_blank" rel="noopener noreferrer">The Haskell Foundation</a>.</div></footer></body></html></html> |
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| <!DOCTYPE HTML><html><html lang="en"><head><meta charset="UTF-8"><base href=".."><link rel="alternate" type="application/atom+xml" href="https://haskell.github.io/security-advisories/atom.xml"><link rel="stylesheet" href="assets/css/default.css"><meta name="viewport" content="width=device-width, initial-scale=1"><meta name="description" content="Haskell Security advisories"><title>Haskell Security advisories</title></head><body><div class="nav-bar"><ul class="items"><li class><a href="by-dates.html">by date</a></li><li class><a href="by-packages.html">by package</a></li></ul></div><h1>Advisories list</h1><div class="content"><pre><code class="language-toml">[advisory] | ||
| id = "HSEC-2023-0004" | ||
| cwe = [776] | ||
| keywords = ["xml", "dos", "historical"] | ||
| aliases = ["CVE-2021-4249", "VDB-216204"] | ||
|
|
||
| [[affected]] | ||
| package = "xml-conduit" | ||
| cvss = "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H" | ||
|
|
||
| [[affected.versions]] | ||
| introduced = "0.5.0" | ||
| fixed = "1.9.1.0" | ||
|
|
||
| [[references]] | ||
| type = "FIX" | ||
| url = "https://github.com/snoyberg/xml/pull/161" | ||
| [[references]] | ||
| type = "FIX" | ||
| url = "https://github.com/snoyberg/xml/commit/4be1021791dcdee8b164d239433a2043dc0939ea" | ||
| </code></pre> | ||
| <h1>xml-conduit unbounded entity expansion</h1> | ||
| <p>A vulnerability was found in <em>xml-conduit</em>. It has been classified | ||
| as problematic. Affected is an unknown function of the file | ||
| <code>xml-conduit/src/Text/XML/Stream/Parse.hs</code> of the component DOCTYPE | ||
| Entity Expansion Handler. The manipulation leads to infinite loop. | ||
| It is possible to launch the attack remotely. Upgrading to version | ||
| 1.9.1.0 is able to address this issue. The name of the patch is | ||
| <code>4be1021791dcdee8b164d239433a2043dc0939ea</code>. It is recommended to | ||
| upgrade the affected component.</p> | ||
| </div><footer><div class="HF">This site is a project of <a href="https://haskell.foundation" target="_blank" rel="noopener noreferrer">The Haskell Foundation</a>.</div></footer></body></html></html> |
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| <!DOCTYPE HTML><html><html lang="en"><head><meta charset="UTF-8"><base href=".."><link rel="alternate" type="application/atom+xml" href="https://haskell.github.io/security-advisories/atom.xml"><link rel="stylesheet" href="assets/css/default.css"><meta name="viewport" content="width=device-width, initial-scale=1"><meta name="description" content="Haskell Security advisories"><title>Haskell Security advisories</title></head><body><div class="nav-bar"><ul class="items"><li class><a href="by-dates.html">by date</a></li><li class><a href="by-packages.html">by package</a></li></ul></div><h1>Advisories list</h1><div class="content"><pre><code class="language-toml">[advisory] | ||
| id = "HSEC-2023-0005" | ||
| cwe = [295] | ||
| keywords = ["x509", "pki", "mitm", "historical"] | ||
| aliases = ["CVE-2013-0243"] | ||
|
|
||
| [[affected]] | ||
| package = "tls-extra" | ||
| cvss = "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N" | ||
|
|
||
| [[affected.versions]] | ||
| introduced = "0.1.0" | ||
| fixed = "0.4.6.1" | ||
|
|
||
| [[references]] | ||
| type = "DISCUSSION" | ||
| url = "https://www.openwall.com/lists/oss-security/2013/01/30/6" | ||
| [[references]] | ||
| type = "REPORT" | ||
| url = "https://github.com/haskell-tls/hs-tls/issues/29" | ||
| [[references]] | ||
| type = "FIX" | ||
| url = "https://github.com/haskell-tls/hs-tls/commit/15885c0649ceabd2f4d2913df8ac6dc63d6b3b37" | ||
| </code></pre> | ||
| <h1>tls-extra: certificate validation does not check Basic Constraints</h1> | ||
| <p><em>tls-extra</em> does not check the Basic Constraints extension of a | ||
| certificate in certificate chain processing. Any certificate is | ||
| treated as a CA certificate. As a consequence, anyone who has a | ||
| valid certificate can use it to sign another one (with an arbitrary | ||
| subject DN/domain name embedded into it) and have it accepted by | ||
| <em>tls</em>. This allows MITM attacks on TLS connections.</p> | ||
| </div><footer><div class="HF">This site is a project of <a href="https://haskell.foundation" target="_blank" rel="noopener noreferrer">The Haskell Foundation</a>.</div></footer></body></html></html> |
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| <!DOCTYPE HTML><html><html lang="en"><head><meta charset="UTF-8"><base href=".."><link rel="alternate" type="application/atom+xml" href="https://haskell.github.io/security-advisories/atom.xml"><link rel="stylesheet" href="assets/css/default.css"><meta name="viewport" content="width=device-width, initial-scale=1"><meta name="description" content="Haskell Security advisories"><title>Haskell Security advisories</title></head><body><div class="nav-bar"><ul class="items"><li class><a href="by-dates.html">by date</a></li><li class><a href="by-packages.html">by package</a></li></ul></div><h1>Advisories list</h1><div class="content"><pre><code class="language-toml">[advisory] | ||
| id = "HSEC-2023-0006" | ||
| cwe = [295] | ||
| keywords = ["x509", "pki", "historical"] | ||
|
|
||
| [[affected]] | ||
| package = "x509-validation" | ||
| cvss = "CVSS:3.1/AV:N/AC:H/PR:H/UI:R/S:U/C:H/I:H/A:N" | ||
|
|
||
| [[affected.versions]] | ||
| introduced = "1.4.0" | ||
| fixed = "1.4.8" | ||
|
|
||
| [[references]] | ||
| type = "FIX" | ||
| url = "https://github.com/haskell-tls/hs-certificate/commit/06d15dbbc53739314760d8504ca764000770e46e" | ||
| </code></pre> | ||
| <h1>x509-validation does not enforce pathLenConstraint</h1> | ||
| <p><em>x509-validation</em> prior to version 1.4.8 did not enforce the | ||
| pathLenConstraint value. Constrained CAs could accidentally (or | ||
| deliberately) issue CAs below the maximum depth and | ||
| <em>x509-validation</em> would accept certificates issued by the | ||
| unauthorised intermediate CAs.</p> | ||
| </div><footer><div class="HF">This site is a project of <a href="https://haskell.foundation" target="_blank" rel="noopener noreferrer">The Haskell Foundation</a>.</div></footer></body></html></html> |
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| <!DOCTYPE HTML><html><html lang="en"><head><meta charset="UTF-8"><base href=".."><link rel="alternate" type="application/atom+xml" href="https://haskell.github.io/security-advisories/atom.xml"><link rel="stylesheet" href="assets/css/default.css"><meta name="viewport" content="width=device-width, initial-scale=1"><meta name="description" content="Haskell Security advisories"><title>Haskell Security advisories</title></head><body><div class="nav-bar"><ul class="items"><li class><a href="by-dates.html">by date</a></li><li class><a href="by-packages.html">by package</a></li></ul></div><h1>Advisories list</h1><div class="content"><pre><code class="language-toml">[advisory] | ||
| id = "HSEC-2023-0007" | ||
| cwe = [1284, 789] | ||
| keywords = ["toml", "parser", "dos"] | ||
|
|
||
| [[affected]] | ||
| package = "base" | ||
| cvss = "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H" | ||
| [[affected.versions]] | ||
| # it was introduced earlier, but this is the earliest version on Hackage | ||
| introduced = "3.0.3.1" | ||
|
|
||
| [[affected]] | ||
| package = "toml-reader" | ||
| cvss = "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H" | ||
| [[affected.versions]] | ||
| introduced = "0.1.0.0" | ||
| fixed = "0.2.0.0" | ||
|
|
||
| [[references]] | ||
| type = "REPORT" | ||
| url = "https://gitlab.haskell.org/ghc/ghc/-/issues/23538" | ||
| [[references]] | ||
| type = "REPORT" | ||
| url = "https://github.com/brandonchinn178/toml-reader/issues/8" | ||
| [[references]] | ||
| type = "FIX" | ||
| url = "https://github.com/brandonchinn178/toml-reader/pull/9" | ||
|
|
||
| </code></pre> | ||
| <h1><code>readFloat</code>: memory exhaustion with large exponent</h1> | ||
| <p><code>Numeric.readFloat</code> takes time and memory linear in the size of the | ||
| number <em>denoted</em> by the input string. In particular, processing a | ||
| number expressed in scientific notation with a very large exponent | ||
| could cause a denial of service. The slowdown is observable on a | ||
| modern machine running GHC 9.4.4:</p> | ||
| <pre><code>ghci> import qualified Numeric | ||
| ghci> Numeric.readFloat "1e1000000" -- near instantaneous | ||
| [(Infinity,"")] | ||
| ghci> Numeric.readFloat "1e10000000" -- perceptible pause | ||
| [(Infinity,"")] | ||
| ghci> Numeric.readFloat "1e100000000" -- ~ 3 seconds | ||
| [(Infinity,"")] | ||
| ghci> Numeric.readFloat "1e1000000000" -- ~ 35 seconds | ||
| [(Infinity,"")] | ||
| </code></pre> | ||
| <h2>In <em>base</em></h2> | ||
| <p><code>Numeric.readFloat</code> is defined for all <code>RealFrac a => a</code>:</p> | ||
| <pre><code class="language-haskell">readFloat :: RealFrac a => ReadS a | ||
| </code></pre> | ||
| <p>The <code>RealFrac</code> type class does not express any bounds on the size of | ||
| values representable in the types for which instances exist, so | ||
| bounds checking is not possible (in this <em>generic</em> function). | ||
| <code>readFloat</code> uses to <code>Text.Read.Lex.numberToRational</code> which, among | ||
| other things, calculates <code>10 ^ exponent</code>, which seems to take linear | ||
| time and memory.</p> | ||
| <p><strong>Mitigation:</strong> use <code>read</code>. The <code>Read</code> instances for <code>Float</code> and | ||
| <code>Double</code> perform bounds checks on the exponent, via | ||
| <code>Text.Read.Lex.numberToRangedRational</code>.</p> | ||
| <h2>In <em>toml-reader</em></h2> | ||
| <p>The issue was detected in <em>toml-reader</em> version 0.1.0.0, and | ||
| mitigated in version 0.2.0.0 by immediately returning <code>Infinity</code> | ||
| when the exponent is large enough that there's no reason to process | ||
| it.</p> | ||
| </div><footer><div class="HF">This site is a project of <a href="https://haskell.foundation" target="_blank" rel="noopener noreferrer">The Haskell Foundation</a>.</div></footer></body></html></html> |
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| <!DOCTYPE HTML><html><html lang="en"><head><meta charset="UTF-8"><base href=".."><link rel="alternate" type="application/atom+xml" href="https://haskell.github.io/security-advisories/atom.xml"><link rel="stylesheet" href="assets/css/default.css"><meta name="viewport" content="width=device-width, initial-scale=1"><meta name="description" content="Haskell Security advisories"><title>Haskell Security advisories</title></head><body><div class="nav-bar"><ul class="items"><li class><a href="by-dates.html">by date</a></li><li class><a href="by-packages.html">by package</a></li></ul></div><h1>Advisories list</h1><div class="content"><pre><code class="language-toml">[advisory] | ||
| id = "HSEC-2023-0008" | ||
| cwe = [87] | ||
| keywords = ["web", "xss", "historical"] | ||
| aliases = ["CVE-2021-46888"] | ||
|
|
||
| [[affected]] | ||
| package = "hledger-web" | ||
| cvss = "CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N" | ||
| [[affected.versions]] | ||
| introduced = "0.24" | ||
| fixed = "1.23" | ||
|
|
||
| [[references]] | ||
| type = "REPORT" | ||
| url = "https://github.com/simonmichael/hledger/issues/1525" | ||
| [[references]] | ||
| type = "INTRODUCED" | ||
| url = "https://github.com/simonmichael/hledger/commit/ec51d28839b2910eea360b1b8c72904b51cf7821" | ||
| [[references]] | ||
| type = "EVIDENCE" | ||
| url = "https://www.youtube.com/watch?v=QnRO-VkfIic" | ||
| [[references]] | ||
| type = "FIX" | ||
| url = "https://github.com/simonmichael/hledger/pull/1663" | ||
|
|
||
| </code></pre> | ||
| <h1>Stored XSS in <em>hledger-web</em></h1> | ||
| <p>An issue was discovered in <em>hledger-web</em> < 1.23. A Stored Cross-Site | ||
| Scripting (XSS) vulnerability exists in <code>toBloodhoundJson</code> that | ||
| allows an attacker to execute JavaScript by encoding user-controlled | ||
| values in a payload with base64 and parsing them with the <code>atob</code> | ||
| function.</p> | ||
| <p><em>hledger-web</em> forms sanitise obvious JavaScript, but not obfuscated | ||
| JavaScript (see <a href="https://owasp.org/www-community/xss-filter-evasion-cheatsheet">OWASP Filter Evasion Cheat Sheet</a>). | ||
| This means <em>hledger-web</em> instances, especially anonymously-writable | ||
| ones like <code>demo.hledger.org</code>, could be loaded with malicious | ||
| JavaScript to be executed by subsequent visitors.</p> | ||
| <p>Reported by Gaspard Baye and Hamidullah Muslih. Fix by Arsen | ||
| Arsenović.</p> | ||
| </div><footer><div class="HF">This site is a project of <a href="https://haskell.foundation" target="_blank" rel="noopener noreferrer">The Haskell Foundation</a>.</div></footer></body></html></html> |
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