CVE-2022-42898
krb5: integer overflow vulnerabilities in PAC parsing
Severity Score
Exploit Likelihood
Affected Versions
Public Exploits
1Exploited in Wild
-Decision
Descriptions
PAC parsing in MIT Kerberos 5 (aka krb5) before 1.19.4 and 1.20.x before 1.20.1 has integer overflows that may lead to remote code execution (in KDC, kadmind, or a GSS or Kerberos application server) on 32-bit platforms (which have a resultant heap-based buffer overflow), and cause a denial of service on other platforms. This occurs in krb5_pac_parse in lib/krb5/krb/pac.c. Heimdal before 7.7.1 has "a similar bug."
El análisis sintáctico de PAC en MIT Kerberos 5 (también conocido como krb5) antes de 1.19.4 y 1.20.x antes de 1.20.1 tiene desbordamientos de enteros que pueden conducir a la ejecución remota de código (en KDC, kadmind, o un servidor de aplicaciones GSS o Kerberos) en plataformas de 32 bits (que tienen un desbordamiento de búfer resultante), y causar una denegación de servicio en otras plataformas. Esto ocurre en krb5_pac_parse en lib/krb5/krb/pac.c. Heimdal antes de 7.7.1 tiene "un bug similar".
A vulnerability was found in MIT krb5. This flaw allows an authenticated attacker to cause a KDC or kadmind process to crash by reading beyond the bounds of allocated memory, creating a denial of service. A privileged attacker may similarly be able to cause a Kerberos or GSS application service to crash.
CVSS Scores
SSVC
- Decision:-
Timeline
- 2022-10-13 CVE Reserved
- 2022-11-21 CVE Published
- 2024-08-03 CVE Updated
- 2024-08-03 First Exploit
- 2024-10-13 EPSS Updated
- ---------- Exploited in Wild
- ---------- KEV Due Date
CWE
- CWE-190: Integer Overflow or Wraparound
CAPEC
References (13)
| URL | Tag | Source |
|---|---|---|
| https://github.com/heimdal/heimdal/security/advisories/GHSA-64mq-fvfj-5x3c | Third Party Advisory | |
| https://security.netapp.com/advisory/ntap-20230216-0008 |
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| https://security.netapp.com/advisory/ntap-20230223-0001 |
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| https://www.samba.org/samba/security/CVE-2022-42898.html | Third Party Advisory |
| URL | Date | SRC |
|---|---|---|
| https://bugzilla.samba.org/show_bug.cgi?id=15203 | 2024-08-03 |
| URL | Date | SRC |
|---|---|---|
| https://github.com/krb5/krb5/commit/ea92d2f0fcceb54a70910fa32e9a0d7a5afc3583 | 2023-10-08 |
| URL | Date | SRC |
|---|---|---|
| https://security.gentoo.org/glsa/202309-06 | 2023-10-08 | |
| https://security.gentoo.org/glsa/202310-06 | 2023-10-08 | |
| https://web.mit.edu/kerberos/advisories | 2023-10-08 | |
| https://web.mit.edu/kerberos/krb5-1.19 | 2023-10-08 | |
| https://web.mit.edu/kerberos/krb5-1.20/README-1.20.1.txt | 2023-10-08 | |
| https://access.redhat.com/security/cve/CVE-2022-42898 | 2022-12-14 | |
| https://bugzilla.redhat.com/show_bug.cgi?id=2140960 | 2022-12-14 |
Affected Vendors, Products, and Versions
| Vendor | Product | Version | Other | Status | ||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Vendor | Product | Version | Other | Status | <-- --> | Vendor | Product | Version | Other | Status |
| Mit Search vendor "Mit" | Kerberos 5 Search vendor "Mit" for product "Kerberos 5" | >= 1.8 < 1.19.4 Search vendor "Mit" for product "Kerberos 5" and version " >= 1.8 < 1.19.4" | - |
Affected
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| Mit Search vendor "Mit" | Kerberos 5 Search vendor "Mit" for product "Kerberos 5" | 1.20 Search vendor "Mit" for product "Kerberos 5" and version "1.20" | - |
Affected
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| Mit Search vendor "Mit" | Kerberos 5 Search vendor "Mit" for product "Kerberos 5" | 1.20 Search vendor "Mit" for product "Kerberos 5" and version "1.20" | beta1 |
Affected
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| Heimdal Project Search vendor "Heimdal Project" | Heimdal Search vendor "Heimdal Project" for product "Heimdal" | < 7.7.1 Search vendor "Heimdal Project" for product "Heimdal" and version " < 7.7.1" | - |
Affected
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| Samba Search vendor "Samba" | Samba Search vendor "Samba" for product "Samba" | < 4.15.12 Search vendor "Samba" for product "Samba" and version " < 4.15.12" | - |
Affected
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| Samba Search vendor "Samba" | Samba Search vendor "Samba" for product "Samba" | >= 4.16.0 < 4.16.7 Search vendor "Samba" for product "Samba" and version " >= 4.16.0 < 4.16.7" | - |
Affected
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| Samba Search vendor "Samba" | Samba Search vendor "Samba" for product "Samba" | >= 4.17.0 < 4.17.3 Search vendor "Samba" for product "Samba" and version " >= 4.17.0 < 4.17.3" | - |
Affected
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