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| author |   GLSAMaker <glsamaker@gentoo.org> | 2024-05-07 04:42:07 +0000 |
|---|---|---|
| committer |   Hans de Graaff <graaff@gentoo.org> | 2024-05-07 06:42:28 +0200 |
| commit | 61702731d59a0ff1549d7cf5b9eed17d723e2e29 (patch) | |
| tree | cc1b1c4e569021a436ef7ab532a63656aad605ec | |
| parent | [ GLSA 202405-18 ] Xpdf: Multiple Vulnerabilities (diff) | |
| download | glsa-61702731d59a0ff1549d7cf5b9eed17d723e2e29.tar.gz glsa-61702731d59a0ff1549d7cf5b9eed17d723e2e29.tar.bz2 glsa-61702731d59a0ff1549d7cf5b9eed17d723e2e29.zip | |
[ GLSA 202405-19 ] xar: Unsafe Extraction
Bug: https://bugs.gentoo.org/820641
Signed-off-by: GLSAMaker <glsamaker@gentoo.org>
Signed-off-by: Hans de Graaff <graaff@gentoo.org>
| -rw-r--r-- | glsa-202405-19.xml | 42 |
1 files changed, 42 insertions, 0 deletions
diff --git a/glsa-202405-19.xml b/glsa-202405-19.xml new file mode 100644 index 00000000..5ae43a63 --- /dev/null +++ b/glsa-202405-19.xml @@ -0,0 +1,42 @@ +<?xml version="1.0" encoding="UTF-8"?> +<!DOCTYPE glsa SYSTEM "http://www.gentoo.org/dtd/glsa.dtd"> +<glsa id="202405-19"> + <title>xar: Unsafe Extraction</title> + <synopsis>A vulnerability has been discovered in xar, which can lead to privilege escalation.</synopsis> + <product type="ebuild">xar</product> + <announced>2024-05-07</announced> + <revised count="1">2024-05-07</revised> + <bug>820641</bug> + <access>remote</access> + <affected> + <package name="app-arch/xar" auto="yes" arch="*"> + <unaffected range="ge">1.8.0.0.487.100.1</unaffected> + <vulnerable range="lt">1.8.0.0.487.100.1</vulnerable> + </package> + </affected> + <background> + <p>xar provides an easily extensible archive format.</p> + </background> + <description> + <p>A vulnerability has been discovered in xar. Please review the CVE identifier referenced below for details.</p> + </description> + <impact type="normal"> + <p>xar allows for a forward-slash separated path to be specified in the file name property, e.g. <name>x/foo</name> – as long as it doesn’t traverse upwards, and the path exists within the current directory. This means an attacker can create a .xar file which contains both a directory symlink, and a file with a name property which points into the extracted symlink directory. By abusing symlink directories in this manner, an attacker can write arbitrary files to any directory on the filesystem – providing the user has permissions to write to it.</p> + </impact> + <workaround> + <p>There is no known workaround at this time.</p> + </workaround> + <resolution> + <p>All xar users should upgrade to the latest version:</p> + + <code> + # emerge --sync + # emerge --ask --oneshot --verbose ">=app-arch/xar-1.8.0.0.487.100.1" + </code> + </resolution> + <references> + <uri link="https://nvd.nist.gov/vuln/detail/CVE-2021-30833">CVE-2021-30833</uri> + </references> + <metadata tag="requester" timestamp="2024-05-07T04:42:07.751840Z">graaff</metadata> + <metadata tag="submitter" timestamp="2024-05-07T04:42:07.755662Z">graaff</metadata> +</glsa>
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