Multiple vulnerabilities in libsolv
| Risk | Low |
| Patch available | YES |
| Number of vulnerabilities | 5 |
| CVE-ID | CVE-2021-33938 CVE-2021-33930 CVE-2021-33929 CVE-2021-33928 CVE-2021-44568 |
| CWE-ID | CWE-787 |
| Exploitation vector | Network |
| Public exploit | N/A |
| Vulnerable software |
libsolv Universal components / Libraries / Libraries used by multiple products |
| Vendor | SUSE |
Security Bulletin
This security bulletin contains information about 5 vulnerabilities.
1) Out-of-bounds write
EUVDB-ID: #VU66436
Risk: Low
CVSSv4.0: 1.2 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:U/U:Clear]
CVE-ID: CVE-2021-33938
CWE-ID:
CWE-787 - Out-of-bounds write
Exploit availability: No
DescriptionThe vulnerability allows a remote attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to a boundary error when processing untrusted input within the prune_to_recommended(0 function in src/policy.c. A remote attacker can create a specially crafted file, trick the victim into opening it using the affected software, trigger an out-of-bounds write and crash the application. MitigationInstall updates from vendor's website.
Vulnerable software versionslibsolv: 0.7.0 - 0.7.16
CPE2.3- cpe:2.3:a:suse:libsolv:0.7.0:*:*:*:*:*:*:*
- cpe:2.3:a:suse:libsolv:0.7.1:*:*:*:*:*:*:*
- cpe:2.3:a:suse:libsolv:0.7.2:*:*:*:*:*:*:*
https://github.com/openSUSE/libsolv/issues/420
Q & A
Can this vulnerability be exploited remotely?
Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.
Is there known malware, which exploits this vulnerability?
No. We are not aware of malware exploiting this vulnerability.
2) Out-of-bounds write
EUVDB-ID: #VU66435
Risk: Low
CVSSv4.0: 1.2 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:U/U:Clear]
CVE-ID: CVE-2021-33930
CWE-ID:
CWE-787 - Out-of-bounds write
Exploit availability: No
DescriptionThe vulnerability allows a remote attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to a boundary error when processing untrusted input within the pool_installable_whatprovides(0 function in src/repo.h. A remote attacker can create a specially crafted file, trick the victim into opening it using the affected software, trigger an out-of-bounds write and crash the application. MitigationInstall updates from vendor's website.
Vulnerable software versionslibsolv: 0.7.0 - 0.7.16
CPE2.3- cpe:2.3:a:suse:libsolv:0.7.0:*:*:*:*:*:*:*
- cpe:2.3:a:suse:libsolv:0.7.1:*:*:*:*:*:*:*
- cpe:2.3:a:suse:libsolv:0.7.2:*:*:*:*:*:*:*
https://github.com/openSUSE/libsolv/issues/417
Q & A
Can this vulnerability be exploited remotely?
Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.
Is there known malware, which exploits this vulnerability?
No. We are not aware of malware exploiting this vulnerability.
3) Out-of-bounds write
EUVDB-ID: #VU66434
Risk: Low
CVSSv4.0: 1.2 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:U/U:Clear]
CVE-ID: CVE-2021-33929
CWE-ID:
CWE-787 - Out-of-bounds write
Exploit availability: No
DescriptionThe vulnerability allows a remote attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to a boundary error when processing untrusted input within the pool_disabled_solvable() function in src/repo.h. A remote attacker can create a specially crafted file, trick the victim into opening it using the affected software, trigger an out-of-bounds write and crash the application. MitigationInstall updates from vendor's website.
Vulnerable software versionslibsolv: 0.7.0 - 0.7.16
CPE2.3- cpe:2.3:a:suse:libsolv:0.7.0:*:*:*:*:*:*:*
- cpe:2.3:a:suse:libsolv:0.7.1:*:*:*:*:*:*:*
- cpe:2.3:a:suse:libsolv:0.7.2:*:*:*:*:*:*:*
https://github.com/openSUSE/libsolv/issues/417
Q & A
Can this vulnerability be exploited remotely?
Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.
Is there known malware, which exploits this vulnerability?
No. We are not aware of malware exploiting this vulnerability.
4) Out-of-bounds write
EUVDB-ID: #VU66433
Risk: Low
CVSSv4.0: 1.2 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:U/U:Clear]
CVE-ID: CVE-2021-33928
CWE-ID:
CWE-787 - Out-of-bounds write
Exploit availability: No
DescriptionThe vulnerability allows a remote attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to a boundary error when processing untrusted input within the pool_installable() function in src/repo.h. A remote attacker can create a specially crafted file, trick the victim into opening it using the affected software, trigger an out-of-bounds write and crash the application.
Install updates from vendor's website.
Vulnerable software versionslibsolv: 0.7.0 - 0.7.16
CPE2.3- cpe:2.3:a:suse:libsolv:0.7.0:*:*:*:*:*:*:*
- cpe:2.3:a:suse:libsolv:0.7.1:*:*:*:*:*:*:*
- cpe:2.3:a:suse:libsolv:0.7.2:*:*:*:*:*:*:*
https://github.com/openSUSE/libsolv/issues/417
Q & A
Can this vulnerability be exploited remotely?
Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.
Is there known malware, which exploits this vulnerability?
No. We are not aware of malware exploiting this vulnerability.
5) Out-of-bounds write
EUVDB-ID: #VU66439
Risk: Low
CVSSv4.0: 1.2 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:U/U:Clear]
CVE-ID: CVE-2021-44568
CWE-ID:
CWE-787 - Out-of-bounds write
Exploit availability: No
DescriptionThe vulnerability allows a remote attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to a boundary error when processing untrusted input within the resolve_dependencies() function at src/solver.c. A remote attacker can create a specially crafted file, trick the victim into opening it using the affected software, trigger an out-of-bounds write and crash the application. MitigationInstall updates from vendor's website.
Vulnerable software versionslibsolv: 0.7.0 - 0.7.16
CPE2.3- cpe:2.3:a:suse:libsolv:0.7.0:*:*:*:*:*:*:*
- cpe:2.3:a:suse:libsolv:0.7.1:*:*:*:*:*:*:*
- cpe:2.3:a:suse:libsolv:0.7.2:*:*:*:*:*:*:*
https://github.com/yangjiageng/PoC/blob/master/libsolv-PoCs/resolve_dependencies-1940
https://github.com/yangjiageng/PoC/blob/master/libsolv-PoCs/resolve_dependencies-1995
https://github.com/openSUSE/libsolv/issues/425
Q & A
Can this vulnerability be exploited remotely?
Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.
Is there known malware, which exploits this vulnerability?
No. We are not aware of malware exploiting this vulnerability.
