Vulnerability Details : CVE-2022-22823
build_model in xmlparse.c in Expat (aka libexpat) before 2.4.3 has an integer overflow.
Vulnerability category: Overflow
Exploit prediction scoring system (EPSS) score for CVE-2022-22823
Probability of exploitation activity in the next 30 days: 0.99%
Percentile, the proportion of vulnerabilities that are scored at or less: ~ 83 % EPSS Score History EPSS FAQ
CVSS scores for CVE-2022-22823
Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source |
---|---|---|---|---|---|
7.5
|
HIGH | AV:N/AC:L/Au:N/C:P/I:P/A:P |
10.0
|
6.4
|
NIST |
9.8
|
CRITICAL | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
3.9
|
5.9
|
NIST |
CWE ids for CVE-2022-22823
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The product performs a calculation that can produce an integer overflow or wraparound, when the logic assumes that the resulting value will always be larger than the original value. This can introduce other weaknesses when the calculation is used for resource management or execution control.Assigned by: nvd@nist.gov (Primary)
References for CVE-2022-22823
-
https://www.debian.org/security/2022/dsa-5073
Debian -- Security Information -- DSA-5073-1 expatThird Party Advisory
-
https://www.tenable.com/security/tns-2022-05
[R1] Nessus Versions 8.15.3 and 10.1.1 Fix Multiple Third-Party Vulnerabilities - Security Advisory | Tenable®Third Party Advisory
-
https://security.gentoo.org/glsa/202209-24
Expat: Multiple Vulnerabilities (GLSA 202209-24) — Gentoo securityThird Party Advisory
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https://github.com/libexpat/libexpat/pull/539
[W.I.P.] [CVE-2022-22822 to CVE-2022-22827] lib: Prevent more integer overflows by hartwork · Pull Request #539 · libexpat/libexpat · GitHubThird Party Advisory
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http://www.openwall.com/lists/oss-security/2022/01/17/3
oss-security - Expat 2.4.3 released, includes 8 security fixesMailing List;Third Party Advisory
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https://cert-portal.siemens.com/productcert/pdf/ssa-484086.pdf
Patch;Third Party Advisory
Products affected by CVE-2022-22823
- cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:*
- cpe:2.3:o:debian:debian_linux:11.0:*:*:*:*:*:*:*
- cpe:2.3:a:siemens:sinema_remote_connect_server:*:*:*:*:*:*:*:*
- cpe:2.3:a:tenable:nessus:*:*:*:*:*:*:*:*
- cpe:2.3:a:tenable:nessus:*:*:*:*:*:*:*:*
- cpe:2.3:a:libexpat_project:libexpat:*:*:*:*:*:*:*:*