Bug 1509868 (CVE-2017-17458)
| Summary: | CVE-2017-17458 mercurial: arbitrary command execution in mercurial repo with a git submodule | ||
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| Product: | [Other] Security Response | Reporter: | Cedric Buissart <cbuissar> |
| Component: | vulnerability | Assignee: | Red Hat Product Security <security-response-team> |
| Status: | CLOSED WONTFIX | QA Contact: | |
| Severity: | medium | Docs Contact: | |
| Priority: | medium | ||
| Version: | unspecified | CC: | katzj, mads, ndbecker2, pstodulk, skisela |
| Target Milestone: | --- | Keywords: | Security |
| Target Release: | --- | ||
| Hardware: | All | ||
| OS: | Linux | ||
| Whiteboard: | |||
| Fixed In Version: | mercurial 4.4.1 | Doc Type: | If docs needed, set a value |
| Doc Text: |
It was found that mercurial was vulnerable to cross repositories modification. A specially crafted mercurial repository could trigger arbitrary commands on a client during commands such as clone or update.
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Story Points: | --- |
| Clone Of: | Environment: | ||
| Last Closed: | 2018-01-16 14:58:23 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: | 1509869 | ||
| Bug Blocks: | 1509858 | ||
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Description
Cedric Buissart
2017-11-06 09:06:52 UTC
External References: https://bz.mercurial-scm.org/show_bug.cgi?id=5730 Created mercurial tracking bugs for this issue: Affects: fedora-all [bug 1509869] The fix consists of 2 distinct parts : - prevents a mercurial sub-repository to cross another sub-repository - disables sub-repositories by default. Relevant patches : - tests: show symlink traversal across subrepo mount point (SEC) https://www.mercurial-scm.org/repo/hg/rev/80d7dbda9294 - subrepo: disallow symlink traversal across subrepo mount point (SEC) https://www.mercurial-scm.org/repo/hg/rev/5e27afeddaee - subrepo: add config option to reject any subrepo operations (SEC) https://www.mercurial-scm.org/repo/hg/rev/5e27afeddaee - subrepo: extend config option to disable subrepos by type (SEC) https://www.mercurial-scm.org/repo/hg/rev/828cf35f1de6 - subrepo: disable git and svn subrepos by default (BC) (SEC) https://www.mercurial-scm.org/repo/hg/rev/846942fd6d15 Statement: This issue affects the versions of mercurial as shipped with Red Hat Enterprise Linux 7. Red Hat Product Security has rated this issue as having Moderate security impact. A future update may address this issue. For additional information, refer to the Issue Severity Classification: https://access.redhat.com/security/updates/classification/. Mitigation: Disable sub-repositories |