CVE-2023-4911
published 2023-10-03CVE-2023-4911: A buffer overflow was discovered in the GNU C Library's dynamic loader ld.so while processing the GLIBC_TUNABLES environment variable. This issue could allow a…
high7.8CVSS 3.1
AVLACLPRLUINSUCHIHAH
KEVITWEXPLOIT
CISA Known Exploited Vulnerabilitydue 2023-12-12
Exploited in the wild
A buffer overflow was discovered in the GNU C Library's dynamic loader ld.so while processing the GLIBC_TUNABLES environment variable. This issue could allow a local attacker to use maliciously crafted GLIBC_TUNABLES environment variables when launching binaries with SUID permission to execute code with elevated privileges.
Affected
79 ranges· showing 25
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| canonical | ubuntu_linux | — | — |
| canonical | ubuntu_linux | — | — |
| debian | debian_linux | — | — |
| debian | debian_linux | — | — |
| debian | glibc | < glibc 2.36-9+deb12u3 (bookworm) | glibc 2.36-9+deb12u3 (bookworm) |
| fedoraproject | fedora | — | — |
| fedoraproject | fedora | — | — |
| fedoraproject | fedora | — | — |
| gnu | glibc | >= 0 < 2.31-13+deb11u7 | 2.31-13+deb11u7 |
| gnu | glibc | >= 0 < 2.36-9+deb12u3 | 2.36-9+deb12u3 |
| gnu | glibc | >= 0 < 2.37-12 | 2.37-12 |
| gnu | glibc | >= 0 < 2.37-12 | 2.37-12 |
| gnu | glibc | >= 0 < 2.35-0ubuntu3.4 | 2.35-0ubuntu3.4 |
| gnu | glibc | >= 2.34 < 2.39 | 2.39 |
| msrc | azl3_glibc_2.38-10_on_azure_linux_3.0 | — | — |
| msrc | azl3_glibc_2.38-6_on_azure_linux_3.0 | — | — |
| msrc | azure_linux_3.0_arm | — | — |
| msrc | azure_linux_3.0_x64 | — | — |
| msrc | cbl2_glibc_2.35-5_on_cbl_mariner_2.0 | — | — |
| msrc | cbl_mariner_2.0_arm | — | — |
| msrc | cbl_mariner_2.0_x64 | — | — |
| redhat | codeready_linux_builder | — | — |
| redhat | codeready_linux_builder_eus | — | — |
| redhat | codeready_linux_builder_eus | — | — |
| redhat | codeready_linux_builder_eus | — | — |
CVSS provenance
nvdv3.17.8HIGHCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
osv7.8HIGH
vulncheck7.8HIGH
cisa7.8HIGH