CVE-2017-13089
GNU Wget: stack overflow in HTTP protocol handling
- Published
- Updated
- Reserved
- Assigned by
- certcc
Description
The http.c:skip_short_body() function is called in some circumstances, such as when processing redirects. When the response is sent chunked in wget before 1.19.2, the chunk parser uses strtol() to read each chunk's length, but doesn't check that the chunk length is a non-negative number. The code then tries to skip the chunk in pieces of 512 bytes by using the MIN() macro, but ends up passing the negative chunk length to connect.c:fd_read(). As fd_read() takes an int argument, the high 32 bits of the chunk length are discarded, leaving fd_read() with a completely attacker controlled length argument.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| certccCNA (assigner) | 3.0 | High8.8 | CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H |
| NVDNVD · Modified | 3.0 | High8.8 | CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H |
- EPSS (exploitation in 30 days)
- 79.9% · top 0.4% of all CVEs (3 Nov 2026)
The list uses the assigner's score when there is one, then CISA's, then NVD's: High 8.8.
Weakness
Affected products
- affected prior to 1.19.2
References (9)
- https://www.viestintavirasto.fi/en/cybersecurity/vulnerabilities/2017/haavoittuvuus-2017-037.html (opens in a new tab)x_refsource_MISCx_transferred
- GLSA-201711-06 (opens in a new tab)vendor-advisoryx_refsource_GENTOOx_transferred
- DSA-4008 (opens in a new tab)vendor-advisoryx_refsource_DEBIANx_transferred
- https://www.synology.com/support/security/Synology_SA_17_62_Wget (opens in a new tab)x_refsource_CONFIRMx_transferred
- http://git.savannah.gnu.org/cgit/wget.git/commit/?id=d892291fb8ace4c3b734ea5125770989c215df3f (opens in a new tab)x_refsource_CONFIRMx_transferred
- 101592 (opens in a new tab)vdb-entryx_refsource_BIDx_transferred
- https://github.com/r1b/CVE-2017-13089 (opens in a new tab)x_refsource_MISCx_transferred
- 1039661 (opens in a new tab)vdb-entryx_refsource_SECTRACKx_transferred
- RHSA-2017:3075 (opens in a new tab)vendor-advisoryx_refsource_REDHATx_transferred
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisories (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://trackcve.app/cve/CVE-2017-13089)Record last updated .