CVE-2021-21783: genivia gsoap Integer Overflow to Buffer Overflow
CVSS: 9.8v3.0CriticalModified
AliasesUBUNTU-CVE-2021-21783DEBIAN-CVE-2021-21783
Published 25-03-2021Last modified 03-08-2024
Vulnerability summary
CVE-2021-21783 is a critical (CVSS 9.8) Integer Overflow to Buffer Overflow vulnerability in genivia gsoap. EPSS estimates a 5.25% chance of exploitation in the next 30 days, higher than 92.4% of scored vulnerabilities. 1 public exploit is recorded.
CVSS score
9.8/10
010
Critical · v3.0 (CVE.org)EPSS score
5.25%
0%100%
Low · +0.27 pp in 30 daysKEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits1reference
Timeline
- 25-03-2021PublishedVulnerability first disclosed.
- 03-08-2024Last modifiedVulnerability information updated.
Description
A code execution vulnerability exists in the WS-Addressing plugin functionality of Genivia gSOAP 2.8.107. A specially crafted SOAP request can lead to remote code execution. An attacker can send an HTTP request to trigger this vulnerability.
CVSS metrics
7 scores · 4 sources · 3 versionsCritical 9.8Preferred score · OSV · Ubuntu (Ecosystem advisory) · calculated from vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:HSourcesAll 3 agree
- OSV · DebianEcosystem advisory · calculated9.8CriticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- NVDNIST9.8CriticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Critical 9.8Preferred score · CVE.org (CNA)
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:HSourcesAll 3 agree
- OSV · UbuntuEcosystem advisory · calculated9.8CriticalCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- NVDNIST9.8CriticalCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
High 7.5Preferred score · NVD (NIST)
AV:N/AC:L/Au:N/C:P/I:P/A:PSourcesSingle source
EPSS trend
Probability
5.25%
Chance of exploitation in the next 30 days
Percentile
92%
Versus all other CVEs
30-day change
+0.27 pp
From 4.98% on 18-09-2026
18-09-202618-10-2026
EPSS score5.25%
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
1 foundExploit Reference (talosintelligence.com)
Maturity: unknown
Weaknesses
CWE · root cause- CWE-680Integer Overflow to Buffer OverflowThe product performs a calculation to determine how much memory to allocate, but an integer overflow can occur that causes less memory to be allocated than expected, leading to a buffer overflow.
- CWE-190Integer Overflow or WraparoundThe 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 occurs when an integer value is incremented to a value that is too large to store in the associated representation. When this occurs, the value may become a very small or negative number.
Affected systems
Oracle5 products
- communications_diameter_signaling_router≥ 8.0.0, ≤ 8.5.0
- communications_eagle_application_processor≥ 16.1.0, ≤ 16.4.0
- communications_eagle_lnp_application_processor46.7 | 46.8 | 46.9
- communications_lsms13.1 | 13.2 | 13.3 | 13.4
- tekelec_virtual_operating_environment≥ 3.4.0, ≤ 3.7.1
Debian1 product
- gsoapAll versions (No fix recorded)
Genivia1 product
- gsoap2.8.107
Ubuntu1 product
- gsoapAll versions (No fix recorded)
4 vendors · 8 products
References
6 links- talosintelligence.com/vulnerability_reports/TALOS-2021-1245X Refsource MISCREPORTExploitTechnical DescriptionThird Party Advisory
