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Gentoo: GLSA-202309-13 Normal: GMP Buffer Overflow DoS Threat

gentoo
Calendar Grey September 29, 2023
Dist Gentoo Esm H88
GMP Buffer Overflow Threat Addressed in Gentoo GLSA 202309-13 - Learn How to Safeguard Your System
A buffer overflow vulnerability has been found in GMP which could result in denial of service.

Summary

There is an integer overflow leading to a buffer overflow when processing untrusted input via GMP's mpz_inp_raw function.

Topics%20covered

Topics Covered

security advisory denial of service update gentoo buffer overflow normal severity gmp

Resolution

All GMP users should upgrade to the latest version:
# emerge --sync # emerge --ask --oneshot --verbose ">=dev-libs/gmp-6.2.1-r2"

References

[ 1 ] CVE-2021-43618 https://nvd.nist.gov/vuln/detail/CVE-2021-43618

Availability

This GLSA and any updates to it are available for viewing at the Gentoo Security Website:
https://security.gentoo.org/glsa/202309-13
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Concerns

Security is a primary focus of Gentoo Linux and ensuring the confidentiality and security of our users' machines is of utmost importance to us. Any security concerns should be addressed to security@gentoo.org or alternatively, you may file a bug at https://bugs.gentoo.org.

Severity: Normal
Title: GMP: Buffer Overflow Vulnerability
Date: September 29, 2023
Bugs: #823804
ID: 202309-13

Topics%20covered

Topics Covered

security advisory denial of service update gentoo buffer overflow normal severity gmp

Synopsis

A buffer overflow vulnerability has been found in GMP which could result in denial of service.

Background

The GNU Multiple Precision Arithmetic Library is a library forarbitrary- precision arithmetic on different types of numbers.

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Affected Packages

Package Vulnerable Unaffected ------------ ------------ ------------ dev-libs/gmp < 6.2.1-r2 >= 6.2.1-r2

Impact

Untrusted input can cause a denial of service via segmentation fault.

Workaround

Users can ensure no untrusted input is passed into GMP's mpz_inp_raw function.

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