Bug 1597101 (CVE-2018-0500)
| Summary: | CVE-2018-0500 curl: Heap-based buffer overflow in Curl_smtp_escape_eob() when uploading data over SMTP | ||||||
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| Product: | [Other] Security Response | Reporter: | Sam Fowler <sfowler> | ||||
| Component: | vulnerability | Assignee: | Red Hat Product Security <security-response-team> | ||||
| Status: | CLOSED ERRATA | QA Contact: | |||||
| Severity: | medium | Docs Contact: | |||||
| Priority: | medium | ||||||
| Version: | unspecified | CC: | abhgupta, bodavis, csutherl, dbaker, dbhole, gzaronik, hhorak, jclere, john.j5live, jokerman, jorton, kanderso, kdudka, lgao, luhliari, mbabacek, mturk, myarboro, omajid, paul, rschiron, rwagner, security-response-team, sfowler, sthangav, trankin, twalsh, weli | ||||
| Target Milestone: | --- | Keywords: | Security | ||||
| Target Release: | --- | ||||||
| Hardware: | All | ||||||
| OS: | Linux | ||||||
| Whiteboard: | |||||||
| Fixed In Version: | curl 7.61.0 | Doc Type: | If docs needed, set a value | ||||
| Doc Text: |
A heap-based buffer overflow has been found in the Curl_smtp_escape_eob() function of curl. An attacker could exploit this by convincing a user to use curl to upload data over SMTP with a reduced buffer to cause a crash or corrupt memory.
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Story Points: | --- | ||||
| Clone Of: | Environment: | ||||||
| Last Closed: | 2018-11-11 22:59:12 UTC | Type: | --- | ||||
| Regression: | --- | Mount Type: | --- | ||||
| Documentation: | --- | CRM: | |||||
| Verified Versions: | Category: | --- | |||||
| oVirt Team: | --- | RHEL 7.3 requirements from Atomic Host: | |||||
| Cloudforms Team: | --- | Target Upstream Version: | |||||
| Embargoed: | |||||||
| Bug Depends On: | 1600081, 1600082 | ||||||
| Bug Blocks: | 1597103 | ||||||
| Attachments: |
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Description
Sam Fowler
2018-07-02 04:06:15 UTC
Flaw introduced by: https://github.com/curl/curl/commit/e40e9d7f0decc79 Created attachment 1456079 [details]
Upstream patch
Acknowledgments: Name: the Curl project Upstream: Peter Wu Even though some versions shipped in RHEL and in RHSCL 3 provide the option to reduce the read buffer, they are not vulnerable to this flaw because they do not use the buffer size value to allocate the scratch buffer in Curl_smtp_escape_eob. Statement: This issue did not affect the versions of curl/libcurl as shipped with Red Hat Enterprise Linux 5, 6 and 7 as they did not include the vulnerable code. This issue did not affect the versions of curl/libcurl as shipped with Red Hat Software Collections 3 as they did not include the vulnerable code. External References: https://curl.haxx.se/docs/adv_2018-70a2.html Created curl tracking bugs for this issue: Affects: fedora-all [bug 1600081] This issue has been addressed in the following products: Red Hat JBoss Core Services Via RHSA-2018:2486 https://access.redhat.com/errata/RHSA-2018:2486 |