Headline
Ubuntu Security Notice USN-7000-1
Ubuntu Security Notice 7000-1 - Shang-Hung Wan discovered that Expat did not properly handle certain function calls when a negative input length was provided. An attacker could use this issue to cause a denial of service or possibly execute arbitrary code. Shang-Hung Wan discovered that Expat did properly handle the potential for an integer overflow on 32-bit platforms. An attacker could use this issue to cause a denial of service or possibly execute arbitrary code.
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Ubuntu Security Notice USN-7000-1
September 12, 2024
expat vulnerabilities
A security issue affects these releases of Ubuntu and its derivatives:
- Ubuntu 24.04 LTS
- Ubuntu 20.04 LTS
- Ubuntu 18.04 LTS
- Ubuntu 16.04 LTS
- Ubuntu 14.04 LTS
Summary:
Several security issues were fixed in Expat.
Software Description:
- expat: XML parsing C library
Details:
Shang-Hung Wan discovered that Expat did not properly handle certain
function calls when a negative input length was provided. An attacker
could use this issue to cause a denial of service or possibly execute
arbitrary code. (CVE-2024-45490)
Shang-Hung Wan discovered that Expat did properly handle the potential
for an integer overflow on 32-bit platforms. An attacker could use this
issue to cause a denial of service or possibly execute arbitrary code.
(CVE-2024-45491, CVE-2024-45492)
Update instructions:
The problem can be corrected by updating your system to the following
package versions:
Ubuntu 24.04 LTS
expat 2.6.1-2ubuntu0.1
libexpat1 2.6.1-2ubuntu0.1
Ubuntu 20.04 LTS
expat 2.2.9-1ubuntu0.7
libexpat1 2.2.9-1ubuntu0.7
Ubuntu 18.04 LTS
expat 2.2.5-3ubuntu0.9+esm1
Available with Ubuntu Pro
libexpat1 2.2.5-3ubuntu0.9+esm1
Available with Ubuntu Pro
Ubuntu 16.04 LTS
expat 2.1.0-7ubuntu0.16.04.5+esm9
Available with Ubuntu Pro
lib64expat1 2.1.0-7ubuntu0.16.04.5+esm9
Available with Ubuntu Pro
libexpat1 2.1.0-7ubuntu0.16.04.5+esm9
Available with Ubuntu Pro
Ubuntu 14.04 LTS
expat 2.1.0-4ubuntu1.4+esm9
Available with Ubuntu Pro
lib64expat1 2.1.0-4ubuntu1.4+esm9
Available with Ubuntu Pro
libexpat1 2.1.0-4ubuntu1.4+esm9
Available with Ubuntu Pro
In general, a standard system update will make all the necessary changes.
References:
https://ubuntu.com/security/notices/USN-7000-1
CVE-2024-45490, CVE-2024-45491, CVE-2024-45492
Package Information:
https://launchpad.net/ubuntu/+source/expat/2.6.1-2ubuntu0.1
https://launchpad.net/ubuntu/+source/expat/2.2.9-1ubuntu0.7
Related news
Red Hat Security Advisory 2024-6754-03 - An update for expat is now available for Red Hat Enterprise Linux 9. Issues addressed include an integer overflow vulnerability.
Debian Linux Security Advisory 5770-1 - Shang-Hung Wan discovered multiple vulnerabilities in the Expat XML parsing C library, which could result in denial of service or potentially the execution of arbitrary code.
Ubuntu Security Notice 7000-2 - USN-7000-1 fixed vulnerabilities in Expat. This update provides the corresponding updates for Ubuntu 22.04 LTS. Shang-Hung Wan discovered that Expat did not properly handle certain function calls when a negative input length was provided. An attacker could use this issue to cause a denial of service or possibly execute arbitrary code.
Ubuntu Security Notice 7001-2 - USN-7001-1 fixed vulnerabilities in xmltol library. This update provides the corresponding updates for Ubuntu 24.04 LTS. Shang-Hung Wan discovered that Expat, contained within the xmltok library, did not properly handle certain function calls when a negative input length was provided. An attacker could use this issue to cause a denial of service or possibly execute arbitrary code.
Ubuntu Security Notice 7001-1 - Shang-Hung Wan discovered that Expat, contained within the xmltok library, did not properly handle certain function calls when a negative input length was provided. An attacker could use this issue to cause a denial of service or possibly execute arbitrary code. Shang-Hung Wan discovered that Expat, contained within the xmltok library, did properly handle the potential for an integer overflow on 32-bit platforms. An attacker could use this issue to cause a denial of service or possibly execute arbitrary code.
Ubuntu Security Notice 7001-1 - Shang-Hung Wan discovered that Expat, contained within the xmltok library, did not properly handle certain function calls when a negative input length was provided. An attacker could use this issue to cause a denial of service or possibly execute arbitrary code. Shang-Hung Wan discovered that Expat, contained within the xmltok library, did properly handle the potential for an integer overflow on 32-bit platforms. An attacker could use this issue to cause a denial of service or possibly execute arbitrary code.