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Debian Security Bug TrackerDEBIANCVE:CVE-2023-4911HistoryOct 03, 2023 - 6:15 p.m.
CVE-2023-4911
2023-10-0318:15:10
Debian Security Bug Tracker
security-tracker.debian.org
30
buffer overflow
gnu c library
ld.so
glibc_tunables
suid
elevated privileges
unix
7.8 High
CVSS3
Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
0.014 Low
EPSS
Percentile
86.5%
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.
| OS | Version | Architecture | Package | Version | Filename |
|---|---|---|---|---|---|
| Debian | 12 | all | glibc | < 2.36-9+deb12u3 | glibc_2.36-9+deb12u3_all.deb |
| Debian | 11 | all | glibc | < 2.31-13+deb11u7 | glibc_2.31-13+deb11u7_all.deb |
| Debian | 999 | all | glibc | < 2.37-12 | glibc_2.37-12_all.deb |
| Debian | 13 | all | glibc | < 2.37-12 | glibc_2.37-12_all.deb |
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7.8 High
CVSS3
Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
0.014 Low
EPSS
Percentile
86.5%
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