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    CVE-2021-44568

    Two heap-overflow vulnerabilities exist in openSUSE/libsolv libsolv through 13 Dec 2020 in the decisionmap variable via the resolve_dependencies function at src/solver.c (line 1940 & line 1995), which could cause a remote Denial of Service.

    Published:Feb 21, 2022
    Last Modified:Nov 21, 2024
    EPS:Feb 21, 2022
    EPSS Score:0.00191
    CVSS Score:6.5

    Affected Products

    Vendor
    Opensuse
    Product
    Libsolv
    Vendor
    Redhat
    Product
    Satellite
    Vendor
    Redhat
    Product
    Satellite Capsule

    Exploits

    https://github.com/openSUSE/libsolv/issues/425https://github.com/yangjiageng/PoC/blob/master/libsolv-PoCs/resolve_dependencies-1940https://github.com/yangjiageng/PoC/blob/master/libsolv-PoCs/resolve_dependencies-1995https://github.com/openSUSE/libsolv/issues/425https://github.com/yangjiageng/PoC/blob/master/libsolv-PoCs/resolve_dependencies-1940https://github.com/yangjiageng/PoC/blob/master/libsolv-PoCs/resolve_dependencies-1995

    Common Attack Pattern Enumeration and Classification (CAPEC)

    CAPEC-540 Overread Buffers

    Related CVEs

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    CVE-2026-9149 (CVSS 6.5) — A flaw was found in libsolv. This heap buffer overflow vulnerability occurs when a victim processes a speciall…
    CVE-2021-3200 (CVSS 3.3) — Buffer overflow vulnerability in libsolv 2020-12-13 via the Solver * testcase_read(Pool *pool, FILE *fp, const…
    CVE-2021-33930 (CVSS 7.5) — Buffer overflow vulnerability in function pool_installable_whatprovides in src/repo.h in libsolv before 0.7.17…
    CVE-2021-33938 (CVSS 7.5) — Buffer overflow vulnerability in function prune_to_recommended in src/policy.c in libsolv before 0.7.17 allows…
    CVE-2021-33928 (CVSS 7.5) — Buffer overflow vulnerability in function pool_installable in src/repo.h in libsolv before 0.7.17 allows attac…
    CVE-2021-33929 (CVSS 7.5) — Buffer overflow vulnerability in function pool_disabled_solvable in src/repo.h in libsolv before 0.7.17 allows…
    CVE-2019-20387 (CVSS 7.5) — repodata_schema2id in repodata.c in libsolv before 0.7.6 has a heap-based buffer over-read via a last schema w…
    CVE-2018-20532 (CVSS 6.5) — There is a NULL pointer dereference at ext/testcase.c (function testcase_read) in libsolvext.a in libsolv thro…

    Common Vulnerability Scoring System

    Attack Vector
    Network
    Adjacent
    Local
    Physical
    Privileges Required
    None
    Low
    High
    User Interaction
    None
    Required
    Scope
    Unchanged
    Changed
    Confidentiality
    None
    Low
    High
    Integrity
    None
    Low
    High
    Availability
    None
    Low
    High