Integer overflow in xdr_array function in RPC servers for operating systems that use libc, glibc, or other code based on SunRPC including di
Integer overflow in xdr_array function in RPC servers for operating systems that use libc, glibc, or other code based on SunRPC including dietlibc, allows remote attackers to execute arbitrary code by passing a large number of arguments to xdr_array through RPC services such as rpc.cmsd and dmispd.
- Published
- Aug 12, 2002
- Updated
- Jun 16, 2026
- EPSS
- 58.1% · 99th percentile
- CWE
- CWE-190
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Report tools
Action score
56
Plan
Add it to your regular patch cycle.
- CVSS
- 39 / 40 · 9.8 / 10
- CISA KEV
- 0 / 30 · Not listed
- EPSS
- 17 / 30 · 58.1%
CISA SSVC decision
- Exploitation
- none
- Automatable
- yes
- Technical impact
- total
Vulnrichment: CISA's decision-tree inputs.
Affected systems
| Vendor | Product | CPE |
|---|---|---|
| sun | solaris | cpe:2.3:o:sun:solaris |
| sun | sunos | cpe:2.3:o:sun:sunos |
| freebsd | freebsd | cpe:2.3:o:freebsd:freebsd |
| openbsd | openbsd | cpe:2.3:o:openbsd:openbsd |
| microsoft | windows 2000 | cpe:2.3:o:microsoft:windows_2000 |
| microsoft | windows nt | cpe:2.3:o:microsoft:windows_nt |
| microsoft | windows xp | cpe:2.3:o:microsoft:windows_xp |
Affected versions
NVD version ranges (for catalog products). Add the product to your stack with a version and matching uses these.
- freebsd freebsdup to 4.6.1 inclusive
- microsoft windows 2000all versions
- microsoft windows nt4.0
- microsoft windows xpall versions
- openbsd openbsd3.1
- sun solaris2.6
- sun solaris9.0
- sun sunos5.5.1
- sun sunos5.7
- sun sunos5.8
Package-level exposure
OSV and GitHub Advisory data: ecosystem, package and range. SBOM matching uses this table.
| Ecosystem | Package | Affected range | Fix |
|---|---|---|---|
| Debian:12 | acm | before 5.0-10 | 5.0-10 |
| Debian:12 | dietlibc | before 0.20-0cvs20020808 | 0.20-0cvs20020808 |
| Debian:12 | glibc | before 2.2.5-13 | 2.2.5-13 |
| Debian:12 | krb5 | before 1.2.5-2 | 1.2.5-2 |
| Debian:12 | openafs | before 1.2.6-1 | 1.2.6-1 |
| Debian:3.0 | acm | before 5.0-3.woody.1 | 5.0-3.woody.1 |
| Debian:3.0 | dietlibc | before 0.12-2.4 | 0.12-2.4 |
| Debian:3.0 | glibc | before 2.2.5-11.1 | 2.2.5-11.1 |
| Debian:3.0 | krb5 | before 1.2.4-5woody1 | 1.2.4-5woody1 |
| Debian:3.0 | openafs | before 1.2.3final2-6 | 1.2.3final2-6 |
Same product
sun: all recordsOther highest-scoring records for the same primary product.
- CVE-2003-0722The default installation of sadmind on Solaris uses weak authentication (AUTH_SYS), which allows local and remote attackers to spoof Solstic67This week
- CVE-2001-0236Buffer overflow in Solaris snmpXdmid SNMP to DMI mapper daemon allows remote attackers to execute arbitrary commands via a long "indication"62This week
- CVE-2008-4556Stack-based buffer overflow in the adm_build_path function in sadmind in Sun Solstice AdminSuite on Solaris 8 and 9 allows remote attackers 61This week
- CVE-2001-0779Buffer overflow in rpc.yppasswdd (yppasswd server) in Solaris 2.6, 7 and 8 allows remote attackers to gain root access via a long username.59Plan
- CVE-2002-0033Heap-based buffer overflow in cfsd_calloc function of Solaris cachefsd allows remote attackers to execute arbitrary code via a request with 47Plan
- CVE-2002-0436sscd_suncourier.pl CGI script in the Sun Sunsolve CD pack allows remote attackers to execute arbitrary commands via shell metacharacters in 44Plan
Remediation
Which version to upgrade to
Fix versions compiled from the vendor, package registries and Microsoft. Verify the vendor's note before upgrading.
| Product / package | Fixed version | Source |
|---|---|---|
| debian:acm | 5.0-10 · Debian:12 | Package registry (OSV) |
| debian:dietlibc | 0.20-0cvs20020808 · Debian:12 | Package registry (OSV) |
| debian:glibc | 2.2.5-13 · Debian:12 | Package registry (OSV) |
| debian:krb5 | 1.2.5-2 · Debian:12 | Package registry (OSV) |
| debian:openafs | 1.2.6-1 · Debian:12 | Package registry (OSV) |
Exploit status
No known public exploit
No public exploit has been observed yet. That doesn't mean you're safe, only that the bar is a little higher.
Research context
For pentesters and researchers: attack profile, score disagreement, timeline, patch commits, credits, variant and chain candidates, bug bounty scope. All derived from existing data; no exploit code.
Timeline
From publication to today: proof of concept, Metasploit module, CISA KEV and fix record. Dates are as reported by the sources.
No dated events beyond publication.
FIRST EPSS daily score; only changes of 0.01 or more are recorded (step chart).
Patch and commit links
Commit, PR and diff links among the references. A starting point for patch-diffing and variant hunting; fixes, not exploits.
No commit or PR link among the references.
Credits
All researchersFinders, reporters and analysts named in the CNA record. Click a name for that researcher’s other records.
No credits in the CNA record.
Variant candidates
Same product, same weakness class, within 18 months. If the patch missed the root cause, the sibling bug is here.
No nightly-computed relations.
Chain candidates
An authentication bypass and a privilege-requiring bug in the same product, published close together: combined they may become an unauthenticated path.
—
Bug bounty scope
No known public program.
Source: bounty-targets-data (public HackerOne, Bugcrowd, Intigriti, YesWeHack listings).
Technical details
Attack conditions
- Anyone who can reach it over the internet can trigger it.
- No account or password is required.
- No user action is required.
- No special conditions are required; it is repeatable.
If successful
- Confidentiality
- high · data can be read
- Integrity
- high · data or configuration can be modified
- Availability
- high · the service can be disrupted
- Attack vector
- Network
- Attack complexity
- Low
- Privileges required
- None
- User interaction
- None
- Scope
- Unchanged
- Confidentiality impact
- High
- Integrity impact
- High
- Availability impact
- High
Weakness class (CWE)
CWE-190 · Integer Overflow or WraparoundCVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
nvd-primary
Attack context
MITRE CAPEC attack patterns and ATT&CK techniques for this weakness class (CWE). A starting point for detection rules and threat hunting.
Attack patterns (CAPEC)
ATT&CK techniques
—
Noroxi analysis
No Noroxi analysis for this record yet
We don't hand-write analysis for all 385,000+ vulnerabilities; that wouldn't be honest. For notable, high-impact vulnerabilities our team writes the mechanism, detection and remediation steps.
We use this product, ask for helpChange log
- Fix✗ → ✓
For records you follow, these changes also arrive as notifications. →
References
- ftp://ftp.caldera.com/pub/security/OpenLinux/CSSA-2002-055.0.txt
- ftp://ftp.netbsd.org/pub/NetBSD/security/advisories/NetBSD-SA2002-011.txt.asc
- ftp://patches.sgi.com/support/free/security/advisories/20020801-01-A
- ftp://patches.sgi.com/support/free/security/advisories/20020801-01-P
- archives.neohapsis.com/archives/aix/2002-q4/0002.html
- archives.neohapsis.com/archives/bugtraq/2002-07/0514.html
- archives.neohapsis.com/archives/hp/2002-q3/0077.html
- bvlive01.iss.net/issEn/delivery/xforce/alertdetail.jsp?oid=20823
- distro.conectiva.com.br/atualizacoes/?id=a&anuncio=000515
- distro.conectiva.com.br/atualizacoes/?id=a&anuncio=000535
- marc.info/?l=bugtraq&m=103158632831416&w=2
- online.securityfocus.com/advisories/4402
- online.securityfocus.com/archive/1/285740
- rhn.redhat.com/errata/RHSA-2002-166.html
- rhn.redhat.com/errata/RHSA-2002-172.html
- www.cert.org/advisories/CA-2002-25.html
- www.debian.org/security/2002/dsa-142
- www.debian.org/security/2002/dsa-143
- www.debian.org/security/2002/dsa-146
- www.debian.org/security/2002/dsa-149
Vendor advisories and official records. Exploit/PoC links are deliberately left out.