CVE-2023-4813: medium-severity vulnerability in Red Hat Enterprise Linux 6
Glibc: potential use-after-free in gaih_inet()
Published · Updated
Follow this CVE+ Monitor Red Hat Enterprise Linux+ Monitor Red Hat Enterprise Linux 8.6 Extended Update Support
E-mail alert when it lands in KEV, gets a public PoC or its score goes up.
13Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackcvss 5.9epss 1.9%
A flaw has been identified in glibc. In an uncommon situation, the gaih_inet function may use memory that has been freed, resulting in an application crash. This issue is only exploitable when the getaddrinfo function is called and the hosts database in /etc/nsswitch.conf is configured with SUCCESS=continue or SUCCESS=merge.
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H
Affected products
Red Hat · Red Hat Enterprise Linux 6Red Hat · Red Hat Enterprise Linux 7Red Hat · Red Hat Enterprise Linux 8Red Hat · Red Hat Enterprise Linux 8.6 Extended Update SupportRed Hat · Red Hat Enterprise Linux 9Red Hat · Red Hat Virtualization 4 for Red Hat Enterprise Linux 8Related CVEs — Red Hat Enterprise Linux 6
In the same product, most dangerous first.
CVE-2023-4911HIGHGlibc: buffer overflow in ld.so leading to privilege escalationEPSS 63.8%KEVCVE-2024-6387HIGHOpenssh: regresshion - race condition in ssh allows rce/dosEPSS 99.5%CVE-2024-3094CRITICALXz: malicious code in distributed sourceEPSS 90.9%CVE-2023-46847HIGHSquid: denial of service in http digest authenticationEPSS 78.5%CVE-2024-12084CRITICALRsync: heap buffer overflow in rsync due to improper checksum length handlingEPSS 72.5%CVE-2023-1183MEDIUMArbitrary file writeEPSS 64.9%
References
https://access.redhat.com/errata/RHSA-2023:5453https://access.redhat.com/errata/RHSA-2023:5455https://access.redhat.com/errata/RHSA-2023:7409https://access.redhat.com/security/cve/CVE-2023-4813https://bugzilla.redhat.com/show_bug.cgi?id=2237798https://cert-portal.siemens.com/productcert/html/ssa-398330.htmlhttps://security.netapp.com/advisory/ntap-20231110-0003/http://www.openwall.com/lists/oss-security/2023/10/03/8