Lucene search
Ubuntu.comUB:CVE-2023-4806HistorySep 18, 2023 - 12:00 a.m.
CVE-2023-4806
2023-09-1800:00:00
ubuntu.com
ubuntu.com
45
glibc
getaddrinfo
memory access
application crash
nss module
ipv6
ipv4
af_inet6
ai_canonname
ai_all
ai_v4mapped
CVSS3
7.5
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
AI Score
6.5
Confidence
High
EPSS
0.001
Percentile
40.0%
A flaw was found in glibc. In an extremely rare situation, the getaddrinfo
function may access memory that has been freed, resulting in an application
crash. This issue is only exploitable when a NSS module implements only the
nss_gethostbyname2_r and nss_getcanonname_r hooks without
implementing the nss*_gethostbyname3_r hook. The resolved name should
return a large number of IPv6 and IPv4, and the call to the getaddrinfo
function should have the AF_INET6 address family with AI_CANONNAME, AI_ALL
and AI_V4MAPPED as flags.
Bugs
Notes
| Author | Note |
|---|---|
| Priority reason: No known NSS modules expose the vulnerability | |
| mdeslaur | This is only an issue when using an NSS module with a very specific behaviour. There are no known NSS modules which are implemented this way. The fix for this issue introduced a leak, identified as CVE-2023-5156 which was later fixed with a subsequent commit. Older releases require backporting a dozen refactoring commits. |
| ccdm94 | One of the refactoring commits needed to fix this issue is also the fix for CVE-2023-4813. |
| OS | Version | Architecture | Package | Version | Filename |
|---|---|---|---|---|---|
| ubuntu | 14.04 | noarch | eglibc | < any | UNKNOWN |
| ubuntu | 18.04 | noarch | glibc | < 2.27-3ubuntu1.6+esm1 | UNKNOWN |
| ubuntu | 20.04 | noarch | glibc | < 2.31-0ubuntu9.14 | UNKNOWN |
| ubuntu | 22.04 | noarch | glibc | < 2.35-0ubuntu3.5 | UNKNOWN |
| ubuntu | 23.04 | noarch | glibc | < 2.37-0ubuntu2.2 | UNKNOWN |
| ubuntu | 23.10 | noarch | glibc | < 2.38-1ubuntu5 | UNKNOWN |
| ubuntu | 24.04 | noarch | glibc | < 2.38-1ubuntu5 | UNKNOWN |
| ubuntu | 16.04 | noarch | glibc | < 2.23-0ubuntu11.3+esm5 | UNKNOWN |
Related
nessus
nessus
Ubuntu 16.04 ESM / 18.04 ESM / 20.04 LTS / 22.04 LTS / 23.04 : GNU C Library vulnerabilities (USN-6541-1)
2023-12-07 00:00:00
EulerOS Virtualization 2.9.1 : glibc (EulerOS-SA-2024-1034)
2024-01-16 00:00:00
Ubuntu 22.04 LTS : GNU C Library regression (USN-6541-2)
2024-01-10 00:00:00
ubuntu
ubuntu
GNU C Library regression
2024-01-10 00:00:00
GNU C Library vulnerabilities
2023-12-07 00:00:00
openvas
openvas
Huawei EulerOS: Security Advisory for glibc (EulerOS-SA-2023-3330)
2023-12-12 00:00:00
Huawei EulerOS: Security Advisory for glibc (EulerOS-SA-2024-1034)
2024-01-05 00:00:00
Ubuntu: Security Advisory (USN-6541-1)
2023-12-08 00:00:00
cloudfoundry
cloudfoundry
USN-6541-2: GNU C Library regression | Cloud Foundry
2024-02-29 00:00:00
USN-6541-1: GNU C Library vulnerabilities | Cloud Foundry
2024-04-04 00:00:00
osv
osv
glibc regression
2024-01-10 13:10:15
glibc vulnerabilities
2023-12-07 16:24:50
CVE-2023-5156
2023-09-25 16:15:15
redhatcve
redhatcve
prion
prion
Memory corruption
2023-09-25 16:15:00
Design/Logic Flaw
2023-09-12 22:15:00
Design/Logic Flaw
2023-09-18 17:15:00
cvelist
cvelist
CVE-2023-5156 Glibc: dos due to memory leak in getaddrinfo.c
2023-09-25 15:55:15
CVE-2023-4813 Glibc: potential use-after-free in gaih_inet()
2023-09-12 21:54:33
CVE-2023-4806 Glibc: potential use-after-free in getaddrinfo()
2023-09-18 16:33:57
nvd
nvd
ubuntucve
ubuntucve
CVE-2023-5156
2023-09-25 00:00:00
CVE-2023-4813
2023-09-12 00:00:00
redhat
redhat
(RHSA-2023:7409) Moderate: glibc security update
2023-11-21 09:53:27
(RHSA-2023:5453) Important: glibc security update
2023-10-05 10:04:00
(RHSA-2023:5455) Important: glibc security update
2023-10-05 10:08:32
cve
cve
debiancve
debiancve
mageia
mageia
Updated glibc packages fix a security vulnerability
2023-10-03 13:53:29
Updated glibc packages fix security and other bugs
2023-09-27 19:31:30
photon
photon
Important Photon OS Security Update - PHSA-2023-4.0-0535
2023-12-24 00:00:00
Moderate Photon OS Security Update - PHSA-2023-3.0-0691
2023-11-23 00:00:00
Moderate Photon OS Security Update - PHSA-2024-3.0-0715
2024-01-19 00:00:00
almalinux
almalinux
Important: glibc security update
2023-10-05 00:00:00
Important: glibc security update
2023-10-05 00:00:00
oraclelinux
oraclelinux
glibc security update
2023-10-10 00:00:00
glibc security update
2023-10-12 00:00:00
glibc security update
2023-12-19 00:00:00
rocky
rocky
glibc security update
2023-10-06 22:57:06
rosalinux
rosalinux
Advisory ROSA-SA-2024-2332
2024-01-30 08:26:13
fedora
fedora
[SECURITY] Fedora 37 Update: glibc-2.36-14.fc37
2023-10-04 15:49:21
[SECURITY] Fedora 38 Update: glibc-2.37-10.fc38
2023-10-04 15:52:08
[SECURITY] Fedora 39 Update: glibc-2.38-6.fc39
2023-10-04 17:16:19
ibm
ibm
cbl_mariner
cbl_mariner
CVE-2023-5156 affecting package glibc for versions less than 2.38-6
2024-07-02 23:30:04
CVE-2023-4806 affecting package glibc for versions less than 2.35-6
2023-11-08 02:07:28
CVE-2023-5156 affecting package glibc for versions less than 2.35-6
2023-11-08 02:07:28
cgr
cgr
CVE-2023-5156 vulnerabilities
2024-05-19 03:07:16
wolfi
wolfi
CVE-2023-5156 vulnerabilities
2024-10-01 09:27:37
debian
debian
[SECURITY] [DSA 5514-1] glibc security update
2023-10-03 17:26:13
gentoo
gentoo
glibc: Multiple Vulnerabilities
2024-02-02 00:00:00
glibc: Multiple vulnerabilities
2023-10-04 00:00:00
CVSS3
7.5
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
AI Score
6.5
Confidence
High
EPSS
0.001
Percentile
40.0%
Related for UB:CVE-2023-4806