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oraclelinuxOracleLinuxELSA-2023-12872
HistoryOct 12, 2023 - 12:00 a.m.

glibc security update

2023-10-1200:00:00
linux.oracle.com
23

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

7.7 High

AI Score

Confidence

High

4.3 Medium

CVSS2

Access Vector

LOCAL

Access Complexity

LOW

Authentication

SINGLE

Confidentiality Impact

PARTIAL

Integrity Impact

PARTIAL

Availability Impact

PARTIAL

AV:L/AC:L/Au:S/C:P/I:P/A:P

0.016 Low

EPSS

Percentile

87.2%

[2.28-225.0.4.6]

  • CVE-2023-4527: Stack read overflow in getaddrinfo in no-aaa mode.
  • CVE-2203-4806: potential use-after-free in getaddrinfo.
  • CVE-2023-4813: potential use-after-free in gaih_inet (RHEL-2435).
  • CVE-2023-4813: work around RHEL-8 limitation in test (RHEL-2435).
    Reviewed by: Jose E. Marchesi
    [2.28-225.0.4]
  • CVE-2023-4911: tunables: Terminate immediately if end of input is reached
    Reviewed by: Jose E. Marchesi
    [2.28-225.0.3]
  • OraBug 35317410 Glibc tunable to disable huge pages on pthread_create stacks
  • Created tunable glibc.pthread.stack_hugetlb to control when hugepages
    can be used for stack allocation.
  • In case THP are enabled and glibc.pthread.stack_hugetlb is set to
    0, glibc will madvise the kernel not to use allow hugepages for stack
    allocations.
    Reviewed-by: Jose E. Marchesi
    [2.28-225.0.2]
  • OraBug: 35268809 Fixed initialization of VDSO for tcache_key_initialize
    Reviewed-by: Jose E. Marchesi
    [2.28-225.0.1]
  • Merge of Oracle patches for ol8u8 beta
    Reviewed-by: Jose E. Marchesi
    [2.28-225]
  • Enforce a specififc internal ordering for tunables (#2154914)

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

7.7 High

AI Score

Confidence

High

4.3 Medium

CVSS2

Access Vector

LOCAL

Access Complexity

LOW

Authentication

SINGLE

Confidentiality Impact

PARTIAL

Integrity Impact

PARTIAL

Availability Impact

PARTIAL

AV:L/AC:L/Au:S/C:P/I:P/A:P

0.016 Low

EPSS

Percentile

87.2%